CORONA DISCHARGE, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
•
1 like•316 views
#CORONA_DISCHARGE #CORONA #INTRODUCTIONTOHIGHVOLTAGEENGINEERING #HIGHVOLTAGEENGINEERINGLECTURES #HIGHVOLTAGEENGINEERINGNPTEL #HIGHVOLTAGEENGINEERINGBASICS #HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION #HIGHVOLTAGEENGINEERINGHINDI #HIGHVOLTAGEENGINEERINGTAMIL #HIGHVOLTAGEENGINEERINGUNACADEMY #TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI #TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI #TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI #TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI #TOWNSENDSTHEORYTINHINDI #TOWNSENDSDISCHARGEINHINDI #BREAKDOWNINGASES #ELECTRICALBREAKDOWN #DIELECTRICBREAKDOWN #COLLISIONPROCESSINGAS #ELASTICCOLLISION #NONELESTICCOLLISIONINGAS #GATE #IES #SSCJE #RRB #NTPC #BHEL #interviewelectricalengineering #ELECTRICALENGINEERING
Report
Share
Report
Share
Recommended
Streamer theory
1) Streamer theory was proposed in 1940 by Rather, Meek and Loeb to explain phenomena not accounted for by Townsend's theory of gas breakdown, such as dependence on gas pressure and geometry.
2) Streamer theory describes how a single avalanche can develop into a spark discharge through distortion of the electric field by space charge, generating further avalanches cumulatively at the avalanche head.
3) Positive ions are left behind the rapidly advancing avalanche head, enhancing the field in front and reducing it behind, while the field is also enhanced between the tail and cathode. This leads to further space charge increase and field enhancement around the anode, forming a streamer connecting anode to cathode.
BREAKDOWN OF LIQUID DIELECTRICS,DEFINITION,CLASSIFICATION & APPLICATION|HIGH ...
FOR YOUTUBE PLZ VISIT VIDOE LINK
https://youtu.be/EO0LLAPwWgo
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
# LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
Corona effect
Explanation of Corona Discharge phenomenon specially in transmission lines and it's effect , advantages and disadvantages.
Pashen's law
Paschen's law Is an equation that gives the breakdown voltage, that is, the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of pressure and gap length. It is named after Friedrich Paschen who discovered it empirically in 1889. Paschen studied the breakdown voltage of various gases between parallel metal plates as the gas pressure and gap distance was varied:
Breakdown due to Internal Discharges and Surface Breakdown
Electrical breakdown occurs when the voltage applied across an insulator exceeds its breakdown voltage, causing it to become electrically conductive. Breakdown can be caused by internal discharges within voids in solid insulators or at boundaries with electrodes. These internal discharges erode the insulating material over time through carbonization and heating, eventually leading to complete breakdown. Surface breakdown, or flashover, occurs when a conducting path forms on the insulating surface, allowing current flow and sparking that further degrades the insulation. Tracking is the formation of a permanent conducting carbon path, while erosion gradually weakens the material over time.
TOWNSEND"S (FIRST)PRIMARY & SECONDARY IONIZATION COEFFICIENT|DERIVATION|HIGH ...
https://youtu.be/uTHP_Dn2cXI
YOUTUBE LINK
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
Skin effect, proximity effect, ferranti effect, corona discharge
Here are the steps to solve this problem:
1. Given:
Conductor diameter (d) = 10.4 mm
Spacing between conductors (s) = 2.5 m
Air temperature (T) = 21°C = 294 K
Air pressure (P) = 73.6 cm of Hg = 9.6 kPa
Irregularity factor (K) = 0.85
Surface factor for local corona (K1) = 0.7
Surface factor for general corona (K2) = 0.8
2. Critical disruptive voltage (Vc) = 28√(sdP/K)
= 28√(10.4×10-3×2.5×
Isolator and bushing
The document discusses various types of tests conducted on isolators, bushings, cables, and circuit breakers. Key tests include:
1. Power frequency and impulse voltage withstand tests to check the insulation strength of isolators, bushings, and cables.
2. Partial discharge and tan delta tests to evaluate insulation condition and dielectric losses.
3. Short circuit tests on circuit breakers to check their ability to safely interrupt fault currents under different voltage and current conditions.
4. Other tests include temperature rise, mechanical endurance, and measurement of electrical characteristics.
Recommended
Streamer theory
1) Streamer theory was proposed in 1940 by Rather, Meek and Loeb to explain phenomena not accounted for by Townsend's theory of gas breakdown, such as dependence on gas pressure and geometry.
2) Streamer theory describes how a single avalanche can develop into a spark discharge through distortion of the electric field by space charge, generating further avalanches cumulatively at the avalanche head.
3) Positive ions are left behind the rapidly advancing avalanche head, enhancing the field in front and reducing it behind, while the field is also enhanced between the tail and cathode. This leads to further space charge increase and field enhancement around the anode, forming a streamer connecting anode to cathode.
BREAKDOWN OF LIQUID DIELECTRICS,DEFINITION,CLASSIFICATION & APPLICATION|HIGH ...
FOR YOUTUBE PLZ VISIT VIDOE LINK
https://youtu.be/EO0LLAPwWgo
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
# LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
Corona effect
Explanation of Corona Discharge phenomenon specially in transmission lines and it's effect , advantages and disadvantages.
Pashen's law
Paschen's law Is an equation that gives the breakdown voltage, that is, the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of pressure and gap length. It is named after Friedrich Paschen who discovered it empirically in 1889. Paschen studied the breakdown voltage of various gases between parallel metal plates as the gas pressure and gap distance was varied:
Breakdown due to Internal Discharges and Surface Breakdown
Electrical breakdown occurs when the voltage applied across an insulator exceeds its breakdown voltage, causing it to become electrically conductive. Breakdown can be caused by internal discharges within voids in solid insulators or at boundaries with electrodes. These internal discharges erode the insulating material over time through carbonization and heating, eventually leading to complete breakdown. Surface breakdown, or flashover, occurs when a conducting path forms on the insulating surface, allowing current flow and sparking that further degrades the insulation. Tracking is the formation of a permanent conducting carbon path, while erosion gradually weakens the material over time.
TOWNSEND"S (FIRST)PRIMARY & SECONDARY IONIZATION COEFFICIENT|DERIVATION|HIGH ...
https://youtu.be/uTHP_Dn2cXI
YOUTUBE LINK
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
Skin effect, proximity effect, ferranti effect, corona discharge
Here are the steps to solve this problem:
1. Given:
Conductor diameter (d) = 10.4 mm
Spacing between conductors (s) = 2.5 m
Air temperature (T) = 21°C = 294 K
Air pressure (P) = 73.6 cm of Hg = 9.6 kPa
Irregularity factor (K) = 0.85
Surface factor for local corona (K1) = 0.7
Surface factor for general corona (K2) = 0.8
2. Critical disruptive voltage (Vc) = 28√(sdP/K)
= 28√(10.4×10-3×2.5×
Isolator and bushing
The document discusses various types of tests conducted on isolators, bushings, cables, and circuit breakers. Key tests include:
1. Power frequency and impulse voltage withstand tests to check the insulation strength of isolators, bushings, and cables.
2. Partial discharge and tan delta tests to evaluate insulation condition and dielectric losses.
3. Short circuit tests on circuit breakers to check their ability to safely interrupt fault currents under different voltage and current conditions.
4. Other tests include temperature rise, mechanical endurance, and measurement of electrical characteristics.
surge diverters
A surge diverter protects electrical equipment from voltage surges by diverting excess voltages caused by spikes in the electrical supply to earth. There are different types of surge diverters, including rod gap, protector tube, and valve type diverters. Rod gap diverters consist of two rods with a gap that sparks over during a surge to discharge current to ground. Protector tube diverters improve on rod gaps by enclosing the gaps to extinguish follow-on arcs. Valve type diverters incorporate non-linear resistors to provide a low resistance path for surges while blocking normal voltages and currents.
Effects on transmission line
After going through this presentation one can understand the effects undergoing on Transmission Line
Following are some effects...
1. Skin effect
2. Proximity effect
3. Ferranti effect
Hv module 3 Impulse voltage generation
This document discusses the generation of high voltage impulses. It describes impulsive and oscillatory transients and their causes. A 1.2/50 μs, 1000 kV wave represents an impulse voltage wave with a 1.2 μs front time and 50 μs tail time. Modified Marx circuits are used to generate high voltage impulses, with capacitors charged in stages through high resistance and discharged through spark gaps. Wave shaping is controlled through resistors and capacitors. Commercial impulse generators typically have 6 sets of resistors to control the waveform and are rated by voltage, number of stages, and stored energy.
Disadvantages of corona, radio interference, inductive interference between p...
Disadvantages of corona, radio interference, inductive interference between power and communication lines
Introduction
Disadvantages of corona.
Radio interference.
Inductive interference between power and communication lines
BREAKDOWN IN GASES
1. Gases can act as insulating media in electrical apparatus due to their ability to undergo ionization when subjected to electric fields. This document discusses various ionization processes in gases and their role in electrical breakdown.
2. Townsend developed equations to model the exponential growth of current in a gas due to electron avalanches caused by ionization collisions. The current is dependent on primary and secondary ionization coefficients.
3. Breakdown occurs when the current becomes infinitely large, as defined by Townsend's criterion. Alternative mechanisms like streamers can also lead to spark formation in gases.
Static shunt compensation
This document discusses static shunt compensation on transmission lines. Shunt compensation can increase steady-state transmittable power and control voltage profiles by using shunt reactors to minimize overvoltage under light loads and shunt capacitors to maintain voltage levels under heavy loads. Midpoint shunt compensation regulates voltage along line segments by exchanging only reactive power at the midpoint, significantly increasing transmittable power as the midpoint has the maximum voltage sag. End of line shunt compensation also provides voltage support to prevent instability.
Overvoltage phenomenon
This document discusses overvoltage phenomena and insulation coordination in high voltage engineering. It covers several topics:
1) Natural causes of overvoltages like lightning and the mechanisms behind lightning strokes.
2) Classification of transmission lines and the behavior of traveling waves at transition points like reflections and successive reflections shown through lattice diagrams.
3) Causes of overvoltages from switching surges during circuit operations, system faults, and abnormal conditions. Characteristics of switching surges and issues in extra high voltage systems are described.
4) Methods to control overvoltages including stepped energization of lines, phase controlled circuit breakers, and drainage of trapped charges. Protective devices like expulsion gaps, protector tubes
Streamer theory of breakdown
Streamer theory of breakdown
( PASCHEN’S LAW , BREAKDOWN IN DIELECTRICS (solid ,liquid) , BREAKDOWN IN VACUUM )
GENERATING OF HIGH ALTERNATING VOLTAGE
This document discusses different methods for generating high voltages and currents, including cascade transformers, resonant transformers, and Tesla coils for AC voltages, and single-stage and Marx generators for impulse voltages. It also covers impulse current generation using a bank of parallel capacitors discharged through an R-L circuit. Cascade transformers consist of multiple transformer stages connected in series to achieve high voltages. Resonant transformers use tuning of the secondary circuit. Tesla coils produce high frequency AC through magnetic coupling of primary and secondary air-core coils.
Tripping and control of impulse generators
The document discusses methods for tripping and controlling impulse generators. A simple method uses a three electrode gap in the first stage, where the central electrode is maintained at a potential between the top and bottom electrodes. Tripping is initiated by applying a pulse to a thyraton, which produces a negative pulse to trigger the three electrode gap. Modern methods instead use a trigatron, which requires a smaller voltage for operation. A trigatron consists of a high voltage sphere, earthed main sphere, and trigger electrode. Tripping is achieved by a pulse causing a spark between the trigger electrode and earthed sphere, inducing a spark across the main gap.
BREAKDOWN IN LIQUIDS_NDS
Liquids make excellent insulating materials due to their high density and heat transfer capabilities compared to gases. Common liquid insulators include transformer oils, silicone oils, and liquid nitrogen. While liquids can withstand very high dielectric strengths in theory, impurities like water, dust, ions, and dissolved gases reduce their actual breakdown strength. Liquids are useful as insulators in high voltage cables, capacitors, transformers, and circuit breakers, where they also act as coolants. The presence of even 0.01% water in oil can reduce its dielectric strength by 80%.
Over voltages in power system
This document discusses various causes of over voltages in electrical power systems, including both external and internal causes. External causes include lightning strikes, which can induce over voltages through direct strikes or electromagnetic induction. Lightning forms when charge accumulates between clouds or between clouds and the ground, with potentials reaching millions of volts. Internally, over voltages occur during switching operations due to phenomena like the Ferranti effect or transient voltages caused by energizing transformers or transmission lines. Protection methods aim to mitigate over voltage risks from both lightning and switching events.
Power cables
This document summarizes different types of power cables. It describes the general construction of cables which includes a conductor, insulation, sheath, bedding, armouring and serving. It then discusses various cable types such as belted cables, screened cables, super tension cables, oil filled cables and gas pressure cables. Screened cables include H-type and S.L. cables. The document provides details on the construction and advantages and disadvantages of each cable type.
Design of substation (with Transformer Design)
This ppt is made for the subject Machine Design. Here the basic types, equipment, designs of substation is described with the preocess and calculation of designing a transformer also.
BREAKDOWN MECHANISM OF LIQUID DIELECTRICS (ALL METHODS))|BREAKDOWN IN LIQUIDS...
https://youtu.be/voEpIfu3B_k
YOUTUBE LINK OF THIS VIDEO
#STRESSEDOILVOLUMETHEORY
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
Electrostatic fields and field stress control
This document discusses high voltage engineering and focuses on electric field distributions. It covers fields in homogeneous insulating materials like gases, fields in multi-dielectric materials, and numerical methods for solving field problems like the Finite Element Method. Specific topics include uniform fields, coaxial cylindrical and spherical fields, fields between spheres, and how conducting particles can distort fields. Fields in multi-layer dielectrics address configurations, dielectric refraction, and using screens to control stress.
chapter-2 Breakdown in Gases (part-1)
The document summarizes various cathode processes and decay processes involved in electrical breakdown in gases. It describes four main ways electrons can be emitted from a cathode surface: 1) photoelectric emission through photon bombardment, 2) electron emission through positive ion or excited atom impact, 3) thermionic emission through heating the cathode, and 4) field emission through very strong electric fields lowering the work function. It also discusses two major decay processes: 1) deionization through recombination of positive and negative ions, and 2) deionization through attachment of free electrons to form stable negative ions, especially in electronegative gases.
Streamer Theory of Breakdown in Gases.pptx
The document discusses streamer theory of gas breakdown, which addresses some limitations of Townsend's theory. It explains that streamer theory involves additional mechanisms like photoionization and space charge effects. The total time lag of breakdown has two components - statistical time lag and formative time lag. An avalanche develops across the gap due to ionization, leaving a positive space charge. Secondary avalanches form near the anode due to field enhancement. As the streamer crosses the gap, a conducting channel is formed. Streamer theory predicts faster breakdown times and dependence on pressure/geometry compared to Townsend's theory.
Representation of short & medium transmission lines
This document discusses the classification and modeling of overhead transmission lines. It notes that short transmission lines only consider resistance and inductance due to their lower voltages and distances. Medium and long transmission lines must account for capacitance effects. The document presents models for short lines using lumped resistance and inductance and models for medium lines using end condenser, nominal T, and nominal π methods which lump the distributed capacitance for simplified analysis. It also discusses voltage regulation and transmission efficiency calculations.
Corona effect
effect in transmission line, line loss of transmission line, environmental effect of transmission line
Corona
Corona discharge occurs when the electric field strength around a conductor exceeds a threshold value, causing the ionization of surrounding gas molecules. It represents a power loss for electric utilities and can occur on overhead power lines. The corona inception voltage is the lowest voltage where continuous corona discharge is observed and depends on factors like frequency, conductor surface irregularities, and geometry. While corona can help dissipate transient overvoltages, it also causes power losses, ozone production, and potential equipment corrosion. Methods to prevent corona include increasing conductor spacing and radii and avoiding sharp points or edges.
Corona discharge
Corona discharge is an electrical discharge that occurs when an electric field is strong enough to ionize air molecules near a conductor but not cause arcing. It appears as a bluish glow and occurs due to the ionization and acceleration of air particles, creating an electron avalanche effect. While corona can be undesirable due to power losses, noise, and ozone production, controlled corona is used in applications like photocopying, ozone generation, and particle filtration.
More Related Content
What's hot
surge diverters
A surge diverter protects electrical equipment from voltage surges by diverting excess voltages caused by spikes in the electrical supply to earth. There are different types of surge diverters, including rod gap, protector tube, and valve type diverters. Rod gap diverters consist of two rods with a gap that sparks over during a surge to discharge current to ground. Protector tube diverters improve on rod gaps by enclosing the gaps to extinguish follow-on arcs. Valve type diverters incorporate non-linear resistors to provide a low resistance path for surges while blocking normal voltages and currents.
Effects on transmission line
After going through this presentation one can understand the effects undergoing on Transmission Line
Following are some effects...
1. Skin effect
2. Proximity effect
3. Ferranti effect
Hv module 3 Impulse voltage generation
This document discusses the generation of high voltage impulses. It describes impulsive and oscillatory transients and their causes. A 1.2/50 μs, 1000 kV wave represents an impulse voltage wave with a 1.2 μs front time and 50 μs tail time. Modified Marx circuits are used to generate high voltage impulses, with capacitors charged in stages through high resistance and discharged through spark gaps. Wave shaping is controlled through resistors and capacitors. Commercial impulse generators typically have 6 sets of resistors to control the waveform and are rated by voltage, number of stages, and stored energy.
Disadvantages of corona, radio interference, inductive interference between p...
Disadvantages of corona, radio interference, inductive interference between power and communication lines
Introduction
Disadvantages of corona.
Radio interference.
Inductive interference between power and communication lines
BREAKDOWN IN GASES
1. Gases can act as insulating media in electrical apparatus due to their ability to undergo ionization when subjected to electric fields. This document discusses various ionization processes in gases and their role in electrical breakdown.
2. Townsend developed equations to model the exponential growth of current in a gas due to electron avalanches caused by ionization collisions. The current is dependent on primary and secondary ionization coefficients.
3. Breakdown occurs when the current becomes infinitely large, as defined by Townsend's criterion. Alternative mechanisms like streamers can also lead to spark formation in gases.
Static shunt compensation
This document discusses static shunt compensation on transmission lines. Shunt compensation can increase steady-state transmittable power and control voltage profiles by using shunt reactors to minimize overvoltage under light loads and shunt capacitors to maintain voltage levels under heavy loads. Midpoint shunt compensation regulates voltage along line segments by exchanging only reactive power at the midpoint, significantly increasing transmittable power as the midpoint has the maximum voltage sag. End of line shunt compensation also provides voltage support to prevent instability.
Overvoltage phenomenon
This document discusses overvoltage phenomena and insulation coordination in high voltage engineering. It covers several topics:
1) Natural causes of overvoltages like lightning and the mechanisms behind lightning strokes.
2) Classification of transmission lines and the behavior of traveling waves at transition points like reflections and successive reflections shown through lattice diagrams.
3) Causes of overvoltages from switching surges during circuit operations, system faults, and abnormal conditions. Characteristics of switching surges and issues in extra high voltage systems are described.
4) Methods to control overvoltages including stepped energization of lines, phase controlled circuit breakers, and drainage of trapped charges. Protective devices like expulsion gaps, protector tubes
Streamer theory of breakdown
Streamer theory of breakdown
( PASCHEN’S LAW , BREAKDOWN IN DIELECTRICS (solid ,liquid) , BREAKDOWN IN VACUUM )
GENERATING OF HIGH ALTERNATING VOLTAGE
This document discusses different methods for generating high voltages and currents, including cascade transformers, resonant transformers, and Tesla coils for AC voltages, and single-stage and Marx generators for impulse voltages. It also covers impulse current generation using a bank of parallel capacitors discharged through an R-L circuit. Cascade transformers consist of multiple transformer stages connected in series to achieve high voltages. Resonant transformers use tuning of the secondary circuit. Tesla coils produce high frequency AC through magnetic coupling of primary and secondary air-core coils.
Tripping and control of impulse generators
The document discusses methods for tripping and controlling impulse generators. A simple method uses a three electrode gap in the first stage, where the central electrode is maintained at a potential between the top and bottom electrodes. Tripping is initiated by applying a pulse to a thyraton, which produces a negative pulse to trigger the three electrode gap. Modern methods instead use a trigatron, which requires a smaller voltage for operation. A trigatron consists of a high voltage sphere, earthed main sphere, and trigger electrode. Tripping is achieved by a pulse causing a spark between the trigger electrode and earthed sphere, inducing a spark across the main gap.
BREAKDOWN IN LIQUIDS_NDS
Liquids make excellent insulating materials due to their high density and heat transfer capabilities compared to gases. Common liquid insulators include transformer oils, silicone oils, and liquid nitrogen. While liquids can withstand very high dielectric strengths in theory, impurities like water, dust, ions, and dissolved gases reduce their actual breakdown strength. Liquids are useful as insulators in high voltage cables, capacitors, transformers, and circuit breakers, where they also act as coolants. The presence of even 0.01% water in oil can reduce its dielectric strength by 80%.
Over voltages in power system
This document discusses various causes of over voltages in electrical power systems, including both external and internal causes. External causes include lightning strikes, which can induce over voltages through direct strikes or electromagnetic induction. Lightning forms when charge accumulates between clouds or between clouds and the ground, with potentials reaching millions of volts. Internally, over voltages occur during switching operations due to phenomena like the Ferranti effect or transient voltages caused by energizing transformers or transmission lines. Protection methods aim to mitigate over voltage risks from both lightning and switching events.
Power cables
This document summarizes different types of power cables. It describes the general construction of cables which includes a conductor, insulation, sheath, bedding, armouring and serving. It then discusses various cable types such as belted cables, screened cables, super tension cables, oil filled cables and gas pressure cables. Screened cables include H-type and S.L. cables. The document provides details on the construction and advantages and disadvantages of each cable type.
Design of substation (with Transformer Design)
This ppt is made for the subject Machine Design. Here the basic types, equipment, designs of substation is described with the preocess and calculation of designing a transformer also.
BREAKDOWN MECHANISM OF LIQUID DIELECTRICS (ALL METHODS))|BREAKDOWN IN LIQUIDS...
https://youtu.be/voEpIfu3B_k
YOUTUBE LINK OF THIS VIDEO
#STRESSEDOILVOLUMETHEORY
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
Electrostatic fields and field stress control
This document discusses high voltage engineering and focuses on electric field distributions. It covers fields in homogeneous insulating materials like gases, fields in multi-dielectric materials, and numerical methods for solving field problems like the Finite Element Method. Specific topics include uniform fields, coaxial cylindrical and spherical fields, fields between spheres, and how conducting particles can distort fields. Fields in multi-layer dielectrics address configurations, dielectric refraction, and using screens to control stress.
chapter-2 Breakdown in Gases (part-1)
The document summarizes various cathode processes and decay processes involved in electrical breakdown in gases. It describes four main ways electrons can be emitted from a cathode surface: 1) photoelectric emission through photon bombardment, 2) electron emission through positive ion or excited atom impact, 3) thermionic emission through heating the cathode, and 4) field emission through very strong electric fields lowering the work function. It also discusses two major decay processes: 1) deionization through recombination of positive and negative ions, and 2) deionization through attachment of free electrons to form stable negative ions, especially in electronegative gases.
Streamer Theory of Breakdown in Gases.pptx
The document discusses streamer theory of gas breakdown, which addresses some limitations of Townsend's theory. It explains that streamer theory involves additional mechanisms like photoionization and space charge effects. The total time lag of breakdown has two components - statistical time lag and formative time lag. An avalanche develops across the gap due to ionization, leaving a positive space charge. Secondary avalanches form near the anode due to field enhancement. As the streamer crosses the gap, a conducting channel is formed. Streamer theory predicts faster breakdown times and dependence on pressure/geometry compared to Townsend's theory.
Representation of short & medium transmission lines
This document discusses the classification and modeling of overhead transmission lines. It notes that short transmission lines only consider resistance and inductance due to their lower voltages and distances. Medium and long transmission lines must account for capacitance effects. The document presents models for short lines using lumped resistance and inductance and models for medium lines using end condenser, nominal T, and nominal π methods which lump the distributed capacitance for simplified analysis. It also discusses voltage regulation and transmission efficiency calculations.
Corona effect
effect in transmission line, line loss of transmission line, environmental effect of transmission line
What's hot (20)
Disadvantages of corona, radio interference, inductive interference between p...
Disadvantages of corona, radio interference, inductive interference between p...
BREAKDOWN MECHANISM OF LIQUID DIELECTRICS (ALL METHODS))|BREAKDOWN IN LIQUIDS...
BREAKDOWN MECHANISM OF LIQUID DIELECTRICS (ALL METHODS))|BREAKDOWN IN LIQUIDS...
Representation of short & medium transmission lines
Representation of short & medium transmission lines
Similar to CORONA DISCHARGE, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
Corona
Corona discharge occurs when the electric field strength around a conductor exceeds a threshold value, causing the ionization of surrounding gas molecules. It represents a power loss for electric utilities and can occur on overhead power lines. The corona inception voltage is the lowest voltage where continuous corona discharge is observed and depends on factors like frequency, conductor surface irregularities, and geometry. While corona can help dissipate transient overvoltages, it also causes power losses, ozone production, and potential equipment corrosion. Methods to prevent corona include increasing conductor spacing and radii and avoiding sharp points or edges.
Corona discharge
Corona discharge is an electrical discharge that occurs when an electric field is strong enough to ionize air molecules near a conductor but not cause arcing. It appears as a bluish glow and occurs due to the ionization and acceleration of air particles, creating an electron avalanche effect. While corona can be undesirable due to power losses, noise, and ozone production, controlled corona is used in applications like photocopying, ozone generation, and particle filtration.
Corona Effect
The mechanical design of overhead power lines considers minimum safety distances, clearance requirements, and conductor sag based on factors like voltage class, pollution level, and weather conditions. Design is determined by standards that specify minimum distances from earth and between conductors, as well as minimum insulator lengths based on pollution class. Conductor sag is calculated considering maximum permissible tensile stress at different temperatures both with and without additional load from ice, snow or equipment. Proper classification of pollution level and consideration of local conditions is important for determining design criteria that ensure safety clearances are maintained.
Corrona Effect.ppt
Corona is a luminous discharge caused by the ionization of air surrounding an electrode due to a voltage gradient exceeding a critical value. Corona from conductors can cause audible noise, radio noise, and loss of power, with effects worsened by factors like high altitude, foul weather, and voltage upgrades. While corona is dependent on electric field strength, it is also influenced by conductor geometry, surface condition, humidity, and air density.
Corona Effect (ELECTRICAL ENGINEERING)
This is a PPT on CORONA EFFECT(ELECTRICAL) Prepared By LAKSHYA PANDEY, 2nd Year Electrical Engineering Student of BIPIN TRIPATHI KUMAON INSTITUTE OF TECHNOLOGY, DWARAHAT, UTTARAKHAND...
Corona1 150423103048-conversion-gate02
Corona occurs when the voltage applied across conductors exceeds a critical disruptive voltage. This causes a faint violet glow and produces ozone, power loss, and radio interference. Corona is caused by ionization of air between conductors due to electrons gaining velocity under the influence of the electric field and colliding with air molecules. Factors that affect corona include conductor size and spacing, line voltage, and atmosphere. While corona reduces transient effects and increases conductor diameter, it also causes energy loss and can lead to corrosion. Methods to reduce corona include increasing conductor size and spacing.
Corona1
Corona occurs when the voltage applied across conductors exceeds a critical disruptive voltage. This causes a faint violet glow and produces ozone, power loss, and radio interference. Corona is caused by ionization of air between conductors due to electrons gaining velocity under the influence of the electric field and colliding with air molecules. Factors that affect corona include conductor size and spacing, line voltage, and atmosphere. While corona reduces transient effects and increases conductor diameter, it also causes energy loss, ozone production, and interference. Methods to reduce corona include increasing conductor size and spacing.
Rock star
Corona is the phenomenon of violet glow, hissing noise and production of ozone gas in an overhead transmission line caused by ionization of the air around conductors. When the potential gradient at conductor surfaces exceeds 30 kV/cm, free electrons in the air gain enough velocity to dislodge electrons from neutral molecules, causing an avalanche ionization effect. This cumulative ionization results in either corona formation or sparking between conductors. Factors that affect the corona onset voltage include line voltage, conductor size, spacing between conductors, and atmosphere.
Corona in trasmission line
This presentation discusses corona in transmission lines. Corona is the ionization of air around conductors due to high voltage, causing a luminous glow and hissing noise. Factors that affect corona include supply voltage, conductor surface roughness, air density, conductor spacing, and system voltage. Corona causes power losses, noise, ozone generation, and interference. Methods to minimize corona include increasing conductor diameter, optimizing line voltage and conductor spacing, and maintaining smooth conductor surfaces.
Chapter 5 corona
This document discusses corona, which is a luminous discharge that occurs when the electric field intensity near a conductor exceeds the critical disruptive voltage of air. Corona can cause audible noise, radio interference, and power loss. The critical disruptive voltage depends on factors like conductor size and spacing, air density, humidity, and the conductor surface condition. Larger or bundled conductors can increase the critical voltage and reduce corona by distributing the electric field. While corona provides some benefits like reducing transient effects, it primarily disadvantages like energy loss, ozone production, and interference. The document provides formulas to calculate the critical disruptive voltage under different conditions.
Corona topic
Corona occurs when the potential gradient between two conductors exceeds a critical value, causing a faint violet glow. It is accompanied by a hissing sound, ozone production, and power loss. Corona results from ionization of air molecules caused by free electrons accelerated by the potential gradient, and is affected by factors like conductor size/spacing, line voltage, and atmosphere. Larger conductors and greater spacing reduce corona by lowering the surface potential gradient. Critical disruptive voltage is the minimum voltage for corona to occur, calculated based on conductor size and spacing. Visual critical voltage is the minimum for visible corona glow along the entire line.
Lecture no 3 switchgears bt255
The Arc Extinction
4.5 Electric Arc,
4.6 Arc formation in A.C. (C.B),
4.7 Modes at Arc Extinction,
4.8 Arc interruption theories
CORONA EFFECT IN TRANSMISSION LINE
What is Corona Discharge And it's effect on Transmission Lines:
What is Corona Discharge and it's effect on Transmission Lines.
This phenomenon occurs when the electrostatic field across the transmission line conductors
produces the condition of potential gradient.
In transmission lines, conductors are surrounded by the air. Air acts as a dielectric medium.ir
Advantages & Disadvantages of Corona Effect:
Advantages:
Due to corona across the conductor, the sheath of air surrounding the conductor becomes conductive which rises the conductor diameter
virtually.
Disadvantages:
A non-sinusoidal voltage drop occurs in the transmission line due to non-sinusoidal corona current, which causes interference with
neighboring communication circuits.
Factors Affecting Corona Discharge:
The phenomenon of electric discharge associated with energized electrical devices, including transmission lines results in a power loss. The following factors can change the magnitude of the Corona Effect:
Supply Voltage: As the electrical corona discharge mainly depends upon the electric field intensity produced by the applied system
voltage.
Air Density Factor: Air density factor also determines the corona loss in transmission lines. The corona loss in inversely proportional to air density factor.
Learn more about Corona Effect at www.allumiax.com
Partial Discharge Test - Switchgear
This document discusses partial discharge (PD) testing methods for predictive maintenance of medium voltage switchgear. It provides definitions and explanations of partial discharge from standards bodies like IEC and IEEE. It describes the three main types of PD sources as internal, surface, and corona discharge. It then explains various online and offline PD testing methods like ultrasonic, transient earth voltage, high frequency current transformer, and the capacitance voltage divider method. Key aspects of each method like frequency ranges, sensor placement, and background noise measurement are outlined. Causes of partial discharge like cavities, electrical trees, water trees, and corona are described in detail.
Chapter Five Corona and Overhead line Insulators.pptx
Corona and overhead line insulators are discussed. Corona occurs when the electrostatic stress around a conductor exceeds 30 kV/cm, producing a faint glow and noise. It causes power loss and radio interference. Several factors affect corona like conductor size, spacing, voltage, frequency, and atmosphere. Insulators provide insulation between conductors and supports to prevent leakage currents. Common materials are porcelain, glass, and synthetic resin. Different types of insulators include pin, suspension, strain, shackle, and stay insulators. The potential is unevenly distributed in a suspension insulator string due to shunt capacitances. Methods to improve string efficiency include using a longer crossarm or grading insulator units.
Corona Effect: What is Corona | Corona Effect in Transmission Line
when a low luminous glow of violet colour will appear and a hissing sound will be heard. This phenomenon is known as Corona effect. Corona is also accompanied by the formation of ozone perhaps due to ionization of air in between the two wires.
1502957341lectrure_3_KUET [Autosaved] [Autosaved].pptx
This document discusses topics related to high voltage engineering including gas insulation, Townsend breakdown criteria, and factors affecting vacuum gap breakdown voltage. It describes two mechanisms of gas breakdown - avalanche and streamer breakdown. It also discusses corona discharge formation and describes the disruptive critical voltage and visual critical voltage. It lists advantages and disadvantages of corona as well as methods to reduce corona loss such as using larger conductors.
Arc discharge method
This document describes the arc discharge method for synthesizing nanomaterials. It discusses how an arc discharge works by thermionic emission to vaporize electrode materials and form a plasma. The document provides details on the experimental setup, conditions for producing single-walled carbon nanotubes, and applications of the arc discharge method such as synthesizing carbon nanotubes, metal nanoparticles, and nanowires.
power point presentation in atmospheric chemistry
this will provide quick discussion on atmospheric chemistry and some other details on atmosphere including layers of the atmosphere and environmental problems in the atmosphere
THERMIONIC EMISSION &RADIOACTIVITY
Thermionic emission occurs when thermal energy causes charge carriers like electrons or ions to flow from a heated surface. Thomas Edison discovered the Edison effect in 1880, where charge could flow in one direction from a heated filament to a cooler metal plate inside an incandescent light bulb. A cathode ray tube uses an electron gun to produce an electron beam that is accelerated and deflected to strike a fluorescent screen, displaying images. It finds uses in oscilloscopes, TVs, and computer monitors. Radioactivity involves the emission of alpha, beta, or gamma radiation from unstable atomic nuclei. While it has uses like power generation and medical imaging, radiation exposure can also cause cell damage and increase cancer risks.
Similar to CORONA DISCHARGE, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING (20)
Chapter Five Corona and Overhead line Insulators.pptx
Chapter Five Corona and Overhead line Insulators.pptx
Corona Effect: What is Corona | Corona Effect in Transmission Line
Corona Effect: What is Corona | Corona Effect in Transmission Line
1502957341lectrure_3_KUET [Autosaved] [Autosaved].pptx
1502957341lectrure_3_KUET [Autosaved] [Autosaved].pptx
More from Prasant Kumar
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 2 NOTES
HELLO EVERYONE, PLZ VISIT YOUTUBE CHANNEL FOR ALL VIDEO LECTURES
https://youtube.com/playlist?list=PLiE0cr_0IcyQW_-UFLEhAP0gzFDy9TA5I
YOU CAN FIND ALL TOPICS OF UNIT 1 DC CIRCUITS IN BASIC ELECTRICAL ENGINEERING IN MORE DETAILS.
#LOOP
#MESH
#NETWORKTHEORY
#CIRCUITTHEORY
#BASICELECTRICALENGINEERING
#FUNDAMENTALOFELECTRICALENGINEERING
#EE
#BEEE
#FIRSTYEAR
#KIRCHHOFFFIRSTLAW
#NETWORKTHEORY
#PHSICS
#KIRCHHOFFLAWINHINDI
#linearelements
#linearnetwork
#nonlinearelements
#nonlinearnetwork
#RESISTIVITY
#CONDUCTIVITY
#REISTANCEPROPERTIES
#WHATISRESISTOR
#DEFINITIONOFRESISTOR
#COLOURCODEOFRESISTOR
#BASICOFELECTRICALENGINEERING
#FUNDAMENTALOFELECTRICALENGINEERING
#BASICOFELECTRICAL&ELECTRONICSENGINEERING
#BEEE
#FIRSTYEARSUBJECT
#RGPV
#UPTU
#ELECTRICALENGINEERING
#CURRENT
#CHARGE
#ELECTRONS
#PROTONS
#ATOM
#VOLTAGE
#EMF
#POTENTIAL
#EMF
#DCCIRCUITS
#ACCIRCUITS
#COMPAREAC_DC
#AMPERE
#UNITOFCURRENT
#UNITOFCHARGE
#PRASANTKUMAR
#BASICELECTRICALELECTRONICSENGINEERING
#BEEE
#RGPV
#SAIACADEMYOFELECTRICALENGINEERING
#SAEE
#ELECTRONICSEMICONDUCTORDEVICE
#EDC
#ADC
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
#PHYSICS
#ELECTROSTATICS
#ELECTROMAGNETICS
#SAEE
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 1 NOTES
HELLO EVERYONE, PLZ VISIT YOUTUBE CHANNEL FOR ALL VIDEO LECTURES
https://youtube.com/playlist?list=PLiE0cr_0IcyQW_-UFLEhAP0gzFDy9TA5I
YOU CAN FIND ALL TOPICS OF UNIT 1 DC CIRCUITS IN BASIC ELECTRICAL ENGINEERING IN MORE DETAILS.
#BASICOFELECTRICALENGINEERING
#FUNDAMENTALOFELECTRICALENGINEERING
#BASICOFELECTRICAL&ELECTRONICSENGINEERING
#BEEE
#FIRSTYEARSUBJECT
#RGPV
#UPTU
#ELECTRICALENGINEERING
#CURRENT
#CHARGE
#ELECTRONS
#PROTONS
#ATOM
#VOLTAGE
#EMF
#POTENTIAL
#EMF
#DCCIRCUITS
#ACCIRCUITS
#COMPAREAC_DC
#AMPERE
#UNITOFCURRENT
#UNITOFCHARGE
#PRASANTKUMAR
#BASICELECTRICALELECTRONICSENGINEERING
#BEEE
#RGPV
#SAIACADEMYOFELECTRICALENGINEERING
#SAEE
#ELECTRONICSEMICONDUCTORDEVICE
#EDC
#ADC
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
#PHYSICS
#ELECTROSTATICS
#ELECTROMAGNETICS
#SAEE
TREEING & TRACKING|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
#BREAKDOWNMECHANISMOFSOLIDDIELECTRICS
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
THERMAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
The document discusses thermal breakdown in insulating materials when subjected to electric fields. It explains that the material heats up due to conduction current and dielectric losses from polarization. As temperature increases, conductivity rises as well, reaching a point of instability where the heat generated exceeds what can be dissipated, causing breakdown. Various heating curves are shown representing different electric stress levels as a function of specimen temperature. A thermal instability condition curve illustrates how breakdown occurs at fields E1 and E2 when heat generated surpasses heat lost at temperatures TA and TB.
ELECTROMECHANICAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
#BREAKDOWNMECHANISMOFSOLIDDIELECTRICS
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
INTRINSIC OR IONIC BREAKDOWN MECHANISM OF SOLID DIELECTRICS|BREAKDOWN IN SOLI...
#BREAKDOWNMECHANISMOFSOLIDDIELECTRICS
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
BREAKDOWN OF SOLID DIELECTRICS|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERINGo...
The document discusses breakdown mechanisms in solid dielectric materials. Solid materials have higher breakdown strength than gases and liquids. When breakdown occurs in solids, the material is permanently damaged and cannot recover its original breakdown strength. The principal breakdown mechanisms for solids are intrinsic or ionic breakdown, electromechanical breakdown, thermal breakdown, electrochemical breakdown, and treeing and tracking. The breakdown mechanism depends on factors like temperature, impurities, and the time of voltage application.
STRESSED OIL VOLUME THEORY OF LIQUID DIELECTRICS|BREAKDOWN IN LIQUIDS|HIGH VO...
FOR YOUTUBE LINK OF ALL TOPICS
https://youtu.be/3zkBPYMPADw
ELECTRONIC BREAKDOWN OF LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|BREAKDOWN IN LIQUID DIELECTRICS
BREAKDOWN (METHODS) MECHANISM IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|...
FOR YOUTUBE LINK
https://youtu.be/YgnzdtYTifM
#BREAKDOWNMECHANISMINLIQUIDDIELECTRICS
#BREAKDOWNINLIQUIDSDIELECTRIC
#LIQUIDSDIELECTRICMATERIALS
#CONDUCTIONANDBREAKDOWNINLIQUIDSDIELECTRIC
# LIQUIDSDIELECTRICBREAKDOWN
#ELECTRONICBREAKDOWNMETHOD
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
CONDUCTION & BREAKDOWN IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|ELECTRI...
This document discusses conduction and breakdown in liquid dielectrics. It explains that the breakdown voltage depends on factors like the electric field, gap separation, cathode work function, liquid viscosity, temperature, and molecular structure. The presence of dissolved gases, especially electronegative gases like oxygen, can increase the breakdown strength of liquids. Commercial liquids contain impurities like gas bubbles and suspended particles that reduce their breakdown strength. Finally, many external factors influence liquid dielectric breakdown, such as electrode configuration, material, size and finish, voltage type/period/magnitude, temperature, pressure, liquid purification, and aging condition.
EFFECT OF SHAPES ON BREAKDOWN STRENGTH OF GAS DIELECTRIC|BREAKDOWN IN GAS|HIG...
#EFFECT_OF_SHAPES_ON BREAKDOWN_STRENGTH_OF_GAS_DIELECTRIC
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
PASCHEN'S LAW , PASCHEN SERIES, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|H...
#PASCHEN_LAW
#PASCHEN_SERIES
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
STREAMER THEORY|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
#STREAMER_THEORY
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
TOWNSEND'S CRITERION & LIMITATIONS|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
#TOWNSEND'SCRITERION_LIMITATIONS
#TOWNSENDSTHEORYTINHINDI
#TOWNSENDSDISCHARGEINHINDI
#BREAKDOWNINGASES
#INTRODUCTIONTOHIGHVOLTAGEENGINEERING
#HIGHVOLTAGEENGINEERINGLECTURES
#HIGHVOLTAGEENGINEERINGNPTEL
#HIGHVOLTAGEENGINEERINGBASICS
#HIGHVOLTAGEENGINEERINGIMPORTANTQUESTION
#HIGHVOLTAGEENGINEERINGHINDI
#HIGHVOLTAGEENGINEERINGTAMIL
#HIGHVOLTAGEENGINEERINGUNACADEMY
#TOWNSENDSFIRSTIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSPRIMARYIONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSSECONDRYONIZATIONCOEFFICIENTINHINDI
#TOWNSENDSCURRENTGROWTHEQUATIONDERIVATIONINHINDI
#ELECTRICALBREAKDOWN
#DIELECTRICBREAKDOWN
#COLLISIONPROCESSINGAS
#ELASTICCOLLISION
#NONELESTICCOLLISIONINGAS
VI CHARACTERISTICS OF PN JUNCTION DIODE IN हिंदी|PN JUNCTION DIODE|FORWARD & ...
#VICHARACTERISTICSOFPNJUNCTIONDIODEINHINDIहिंदी
#DIODECHARECTERISTICS
#PN_DIODE_IN_HINDI
#FORWARD_REVERSE_BIASED_DIODE
#PN_JUNCTION_DIODE
#PNJUNCTIONDIODEUNACADEMY
#SEMINCONDUCTORDIODEINHINDI
#BASICELECTRICALELECTRONICSENGINEERING
#BEEE
#RGPV
#SAIACADEMYOFELECTRICALENGINEERING
#SAEE
#ELECTRONICSEMICONDUCTORDEVICE
#EDC
#ADC
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
#ELECTRICALENGINEERING
PN JUNCTION DIODE IN हिंदी|FORWARD AND REVERSE BIASED OF DIODE|BASIC ELECTRON...
This document discusses the basics of a PN junction diode. It explains that a PN junction diode consists of a positive P-type region and negative N-type region fused together. It describes forward bias as applying voltage such that the positive terminal is connected to the P-side and negative to the N-side, causing current to flow. Reverse bias is applying the opposite voltage configuration, widening the depletion region and preventing current from flowing. The document provides an overview of PN junction diode characteristics and biasing methods.
X-OR GATE AND X-NOR GATE IN HINDI |EXCLUSIVES GATES|TRUTH TABLE AND LOGIC OPE...
https://youtu.be/zn28Xm-A6yk
YOUTUBE LINK
#XOR_GATE_XNOR_GATE_IN_HINDI
#EXCLUSIVES_GATES
#XOR_GATE_BOOLEAN
#XNOR_GATE_BOOLEN
#LOGICGATESINHINDI
#BASICELECTRONICS
#BASIC ELECTRICAL&ELECTRONICSENGINEERING
#SEMINCONDUCTORDIODEINHINDI
#BASICELECTRICALELECTRONICSENGINEERING
#BEEE
#RGPV
#SAIACADEMYOFELECTRICALENGINEERING
#SAEE
#ELECTRONICSEMICONDUCTORDEVICE
#EDC
#ADC
NAND GATE AND NOR GATE IN HINDI |UNIVERSAL GATES|TRUTH TABLE AND LOGIC DIAGRA...
This document discusses NAND and NOR gates in basic electrical engineering. It explains that a NAND gate performs an AND operation followed by a NOT, while a NOR gate performs an OR operation followed by a NOT. The document encourages visiting the author's YouTube channel for videos on these topics, with a link provided in the description box.
LOGIC GATES VIDEO LECTURE IN HINDI|OR GATE,AND GATE &NOT GATE|LOGIC DIAGRAM &...
https://youtu.be/4Tb2GbE1R-I
YOUTUBE LINK
#Logic_gates
#OR_AND_NOT_GATE
#UNIVERSAL_GATES
#LOGIC_GATES_TRUTH_TABLE
#LOGICGATESNEETPHYSICSKOTA
#BASIC_ELECTRONICS
#BASICS_ELECTRICAL_ELECTRONICS_ENGINEERING
TRANSISTOR_ CONSTRUCTION & WORKING IN HINDI|BIPOLAR JUNCTION TRANSISTOR|NPN_P...
#TRANSISTOR
#WORKINGOFTRANSISTROR
#PNP_NPN_TRANSISTOR
#TRANSISTOR_AS_AMPLIFIER
#BJT_UJT_FET_MOSFET_TRANSISTOR
#TRANSISTOR_BIASING
#TRANSISTOR_IN_HINDI
#APPLICAION_OF_TRANSISTOR
#VICHARACTERISTICSOFPNJUNCTIONDIODEINHINDIहिंदी
#DIODECHARECTERISTICS
#PN_DIODE_IN_HINDI
#FORWARD_REVERSE_BIASED_DIODE
#PN_JUNCTION_DIODE
#PNJUNCTIONDIODEUNACADEMY
#SEMINCONDUCTORDIODEINHINDI
#BASICELECTRICALELECTRONICSENGINEERING
#BEEE
#RGPV
#SAIACADEMYOFELECTRICALENGINEERING
#SAEE
#ELECTRONICSEMICONDUCTORDEVICE
#EDC
#ADC
#GATE
#IES
#SSCJE
#RRB
#NTPC
#BHEL
#interviewelectricalengineering
More from Prasant Kumar (20)
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 2 NOTES
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 2 NOTES
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 1 NOTES
BASIC ELECTRICAL ENGINEERING DC CIRCUITS UNIT 1 PART 1 NOTES
TREEING & TRACKING|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
TREEING & TRACKING|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
THERMAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
THERMAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
ELECTROMECHANICAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
ELECTROMECHANICAL BREAKDOWN|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERING
INTRINSIC OR IONIC BREAKDOWN MECHANISM OF SOLID DIELECTRICS|BREAKDOWN IN SOLI...
INTRINSIC OR IONIC BREAKDOWN MECHANISM OF SOLID DIELECTRICS|BREAKDOWN IN SOLI...
BREAKDOWN OF SOLID DIELECTRICS|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERINGo...
BREAKDOWN OF SOLID DIELECTRICS|BREAKDOWN IN SOLIDS|HIGH VOLTAGE ENGINEERINGo...
STRESSED OIL VOLUME THEORY OF LIQUID DIELECTRICS|BREAKDOWN IN LIQUIDS|HIGH VO...
STRESSED OIL VOLUME THEORY OF LIQUID DIELECTRICS|BREAKDOWN IN LIQUIDS|HIGH VO...
BREAKDOWN (METHODS) MECHANISM IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|...
BREAKDOWN (METHODS) MECHANISM IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|...
CONDUCTION & BREAKDOWN IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|ELECTRI...
CONDUCTION & BREAKDOWN IN LIQUID DIELECTRICS|HIGH VOLTAGE ENGINEERING|ELECTRI...
EFFECT OF SHAPES ON BREAKDOWN STRENGTH OF GAS DIELECTRIC|BREAKDOWN IN GAS|HIG...
EFFECT OF SHAPES ON BREAKDOWN STRENGTH OF GAS DIELECTRIC|BREAKDOWN IN GAS|HIG...
PASCHEN'S LAW , PASCHEN SERIES, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|H...
PASCHEN'S LAW , PASCHEN SERIES, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|H...
STREAMER THEORY|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
STREAMER THEORY|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
TOWNSEND'S CRITERION & LIMITATIONS|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
TOWNSEND'S CRITERION & LIMITATIONS|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
VI CHARACTERISTICS OF PN JUNCTION DIODE IN हिंदी|PN JUNCTION DIODE|FORWARD & ...
VI CHARACTERISTICS OF PN JUNCTION DIODE IN हिंदी|PN JUNCTION DIODE|FORWARD & ...
PN JUNCTION DIODE IN हिंदी|FORWARD AND REVERSE BIASED OF DIODE|BASIC ELECTRON...
PN JUNCTION DIODE IN हिंदी|FORWARD AND REVERSE BIASED OF DIODE|BASIC ELECTRON...
X-OR GATE AND X-NOR GATE IN HINDI |EXCLUSIVES GATES|TRUTH TABLE AND LOGIC OPE...
X-OR GATE AND X-NOR GATE IN HINDI |EXCLUSIVES GATES|TRUTH TABLE AND LOGIC OPE...
NAND GATE AND NOR GATE IN HINDI |UNIVERSAL GATES|TRUTH TABLE AND LOGIC DIAGRA...
NAND GATE AND NOR GATE IN HINDI |UNIVERSAL GATES|TRUTH TABLE AND LOGIC DIAGRA...
LOGIC GATES VIDEO LECTURE IN HINDI|OR GATE,AND GATE &NOT GATE|LOGIC DIAGRAM &...
LOGIC GATES VIDEO LECTURE IN HINDI|OR GATE,AND GATE &NOT GATE|LOGIC DIAGRAM &...
TRANSISTOR_ CONSTRUCTION & WORKING IN HINDI|BIPOLAR JUNCTION TRANSISTOR|NPN_P...
TRANSISTOR_ CONSTRUCTION & WORKING IN HINDI|BIPOLAR JUNCTION TRANSISTOR|NPN_P...
Recently uploaded
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdThe History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingExcellence Foundation for South Sudan
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxMohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
A Strategic Approach: GenAI in Education
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Types of Herbal Cosmetics its standardization.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
Assessment and Planning in Educational technology.pptx
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama UniversityAkanksha trivedi rama nursing college kanpur.
Natural birth techniques are various type such as/ water birth , alexender method, hypnosis, bradley method, lamaze method etcA Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance
Recently uploaded (20)
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
Assessment and Planning in Educational technology.pptx
Assessment and Planning in Educational technology.pptx
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
CORONA DISCHARGE, EFFECT, IN SIMPLE LANGUAGE|BREAKDOWN IN GAS|HIGH VOLTAGE ENGINEERING
- 1. HIGH VOLTAGE ENGINEERING CORONA DISCHARGES IN SIMPLE LAUNGUAGE LEC # 09 BREAKDOWN IN GASES
- 2. CORONA DISCHARGES Corona Discharge an electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gas If the field is non-uniform, an increase in voltage will first cause a discharge in the gas to appear at points with highest electric field intensity, namely at sharp points or where the electrodes are curved or on transmission lines. Corona discharge on a 500 kV overhead power line
- 3. DISCHARGE TAKES PLACE ELECTRIC FIRLD INCREASES SPACE CHARGE IONISED HOW CORONA DISCHARGE TAKES PLACE ? CORONA DISCHARGE MORE FREE IONS FORM
- 6. PROPERTIES OF CORONA DISCHARGES In the air, coronas generate gases such as ozone (O3) and nitric oxide (NO), and in turn, nitrogen dioxide (NO2), and thus nitric acid (HNO3) if water vapor is present. This form of discharge is called a CORONA DISCHARGE and can be observed as a bluish luminescence The corona discharge around a high-voltage coil