In its endeavor to serve the PDU market in all of its application segments including Smart Solutions for Data Centers, Industrial PDU Market, Elcom International has been continuously investing and expanding its PDU family offering.
Chapter 8 overvoltage phenomenon and insulation coordination.pptborapring
The document discusses lightning phenomena, stroke formation, lightning parameters, empirical design methods, the electrogeometric model (EGM), and insulation coordination. Some key points:
- Lightning forms due to the separation of charges within ice crystals in thunderclouds.
- A lightning stroke occurs through a stepped leader and return stroke process.
- Parameters like strike distance and current magnitude help determine protection needs.
- Traditional methods use fixed angles or empirical curves to determine shielding requirements.
- The EGM model calculates allowable stroke currents and striking distances using insulation levels.
- Insulation coordination aims to select insulation levels and surge arresters to withstand overvoltages.
This document discusses different types of solar cells, including crystalline silicon, thin-film, dye-sensitized, and organic solar cells. Crystalline silicon solar cells are made through the Czochralski method and have efficiencies between 13-16%, while thin-film technologies like amorphous silicon, cadmium telluride, and copper indium gallium selenide have lower efficiencies between 9-12% but lower costs. Dye-sensitized solar cells are based on a semiconductor formed between a photo-sensitized anode and electrolyte, and organic solar cells use organic electronics for power conversion. The document also lists pros and cons of solar cells overall.
This document provides information on megger devices used for insulation testing and continuity testing of wiring installations and machines. It describes the construction, operation, and applications of manual and electronic megger devices. Manual megger devices generate test voltage through a hand crank, while electronic megger devices use batteries. A megger works by measuring the resistance of a circuit using a voltage and current coil to deflect a pointer on a scale from zero to infinity, indicating the level of insulation or presence of shorts. Megger tests are useful for regularly checking the insulation resistance of electrical equipment to prevent electrical shock hazards that can occur from degraded insulation over time.
This PPT explains about the circuit breaker, and its types. Then about the need and purpose of the circuit breaker. And finally the testing and types of testing of circuit breakers.
This document is a seminar report on organic light-emitting diode (OLED) displays submitted by Vishnu S.S. to the Department of Electronics and Communication at Government Polytechnic College in Neyyattinkara, India in 2017. The report provides an introduction to OLEDs, discusses their history and components. It also describes the fabrication process and methods of OLEDs and examines their working principle, types, advantages and applications. The report aims to inform readers about OLED displays and their potential as an emerging display technology.
The document is an introduction to electrical engineering that covers basics of electric circuits, AC power, and power generation and transmission. It defines current and voltage, explains Ohm's law, and discusses Kirchhoff's laws. It also describes the advantages of using AC power over DC for power transmission, including the ability to use transformers to change voltage levels. The document concludes by explaining power factors in AC circuits.
This document discusses and classifies various electrical wiring accessories. It describes controlling accessories like switches, mounting accessories like holders used to mount fixtures, safety accessories like circuit breakers and fuses, and general accessories like connectors, ceiling roses and plug sockets. These accessories are important components used in home and building wiring systems to control and distribute electricity safely.
This document provides an overview of surge protection and transient surges. It defines a transient surge as a brief high-voltage spike lasting millionths of a second. The document discusses how surges can damage equipment and cost businesses billions annually. It describes how surge protective devices (SPDs) work by diverting damaging currents away from equipment. The document emphasizes that proper SPD location and installation is important for effective protection. It provides guidance on selecting appropriate protection levels based on surge risk and discusses relevant industry codes and standards.
Chapter 8 overvoltage phenomenon and insulation coordination.pptborapring
The document discusses lightning phenomena, stroke formation, lightning parameters, empirical design methods, the electrogeometric model (EGM), and insulation coordination. Some key points:
- Lightning forms due to the separation of charges within ice crystals in thunderclouds.
- A lightning stroke occurs through a stepped leader and return stroke process.
- Parameters like strike distance and current magnitude help determine protection needs.
- Traditional methods use fixed angles or empirical curves to determine shielding requirements.
- The EGM model calculates allowable stroke currents and striking distances using insulation levels.
- Insulation coordination aims to select insulation levels and surge arresters to withstand overvoltages.
This document discusses different types of solar cells, including crystalline silicon, thin-film, dye-sensitized, and organic solar cells. Crystalline silicon solar cells are made through the Czochralski method and have efficiencies between 13-16%, while thin-film technologies like amorphous silicon, cadmium telluride, and copper indium gallium selenide have lower efficiencies between 9-12% but lower costs. Dye-sensitized solar cells are based on a semiconductor formed between a photo-sensitized anode and electrolyte, and organic solar cells use organic electronics for power conversion. The document also lists pros and cons of solar cells overall.
This document provides information on megger devices used for insulation testing and continuity testing of wiring installations and machines. It describes the construction, operation, and applications of manual and electronic megger devices. Manual megger devices generate test voltage through a hand crank, while electronic megger devices use batteries. A megger works by measuring the resistance of a circuit using a voltage and current coil to deflect a pointer on a scale from zero to infinity, indicating the level of insulation or presence of shorts. Megger tests are useful for regularly checking the insulation resistance of electrical equipment to prevent electrical shock hazards that can occur from degraded insulation over time.
This PPT explains about the circuit breaker, and its types. Then about the need and purpose of the circuit breaker. And finally the testing and types of testing of circuit breakers.
This document is a seminar report on organic light-emitting diode (OLED) displays submitted by Vishnu S.S. to the Department of Electronics and Communication at Government Polytechnic College in Neyyattinkara, India in 2017. The report provides an introduction to OLEDs, discusses their history and components. It also describes the fabrication process and methods of OLEDs and examines their working principle, types, advantages and applications. The report aims to inform readers about OLED displays and their potential as an emerging display technology.
The document is an introduction to electrical engineering that covers basics of electric circuits, AC power, and power generation and transmission. It defines current and voltage, explains Ohm's law, and discusses Kirchhoff's laws. It also describes the advantages of using AC power over DC for power transmission, including the ability to use transformers to change voltage levels. The document concludes by explaining power factors in AC circuits.
This document discusses and classifies various electrical wiring accessories. It describes controlling accessories like switches, mounting accessories like holders used to mount fixtures, safety accessories like circuit breakers and fuses, and general accessories like connectors, ceiling roses and plug sockets. These accessories are important components used in home and building wiring systems to control and distribute electricity safely.
This document provides an overview of surge protection and transient surges. It defines a transient surge as a brief high-voltage spike lasting millionths of a second. The document discusses how surges can damage equipment and cost businesses billions annually. It describes how surge protective devices (SPDs) work by diverting damaging currents away from equipment. The document emphasizes that proper SPD location and installation is important for effective protection. It provides guidance on selecting appropriate protection levels based on surge risk and discusses relevant industry codes and standards.
Robotic monitoring of powersystems by sriharshaSri Harsha
This document discusses a mobile robot system for monitoring underground power cables. The robot, called CRUISER, is equipped with multiple sensors to detect factors that could cause cable faults. It uses infrared sensors to detect excess heat, acoustic sensors to detect partial discharges, and electric field sensors to measure cable properties. The robot can inspect cables in hazardous environments and tightly enclosed spaces. Its goal is to effectively monitor cable condition and prevent failures through early fault detection.
The document provides information about electrical and electronics engineering careers. It defines engineering and the roles of electrical and electronic engineers. It then discusses why one should study electrical and electronics engineering, noting opportunities for high pay, job satisfaction, variety of career paths, intellectual development, and making a positive impact. The document outlines typical career paths, skills needed, potential employers in various industries, pay ranges, and demand in the field. It emphasizes gaining practical experience through internships.
The Students of ECE have a Bright Future as the Automation is fast catching up across all the industries, Call it Manufacturing, Automotive, Textile, Civil, Energy, Aero-space, Medical, Home Automation, Security. There is a great demand for Skilled & Knowledge work force. So look out for wonderful opportunities coming towards the passed out students way.
This document discusses earthing and earth pits. It defines earthing as connecting an object to the general mass of earth using an earth electrode. An earth electrode is a metal plate or pipe electrically connected to the ground. Proper earthing is important for safety and protection. When designing an earth pit, factors like soil resistivity, moisture content, and salt concentration must be considered. Soil resistivity affects the effectiveness of earthing and varies based on these conditions. Rod or pipe electrodes should be driven to a depth of at least 2.5 meters, with alternative layers of charcoal/coke and salt to improve conductivity.
The document discusses insulation resistance testing (IRT), also known as megger testing. IRT determines the electrical integrity of wires by identifying faulty wires. Faulty electrical wiring is a major cause of fires. The document also lists several commercial and residential clients that the author has performed IRT or megger testing for at their properties located in Metro Manila and nearby provinces.
The document discusses diodes, including their history and components. It describes how a diode is constructed from a P-type and N-type semiconductor material, forming a PN junction. At the junction, electrons diffuse into holes, creating a depletion region that acts as an insulator under reverse bias but allows current to flow under forward bias. The document outlines diode applications such as rectification in power supplies and their characteristic I-V curve.
This document provides an overview of transformers, including their structure, working principle, construction, losses, and applications. Transformers are devices that change AC electric power at one voltage level to another through magnetic coupling of two coils. They allow interchange of electric energy between circuits without a direct connection. The transformer consists of a primary coil, secondary coil, and magnetic core. When an alternating current flows through the primary, it induces a changing magnetic flux that is transferred to the secondary coil to induce voltage. Transformers experience losses from copper, hysteresis, and eddy currents. They are used widely in power transmission and applications like televisions and cameras.
Smart and automated control of water level, temperature and purification (1)Upamanyu Ray
Water is the most important of Nature’s gift to mankind, especially now with endangerment of freshwater. Without water, there is no life. So, water management should reduce its wastage. As a first step, this controller will automatically switch ON and OFF the domestic water pump system depending on the water tank and underground sump levels (to prevent dry run). Along with that, the system purifies and heats the water (to a soothing lukewarm). In this paperwork, we made an effort to design a costeffective and complete system using Arduino, Ultrasonic transducers, Zeolite Solution, Temperature and Humidity transducers, for water level indication, temperature control and water purification. The Arduino controls the storage level of water in a tank, its heating and the amount of zeolite mixed through SPST relays, without any wastage of water or power.
Keywords: Water, Management, Arduino, Ultrasonic, Relay, Temperature, Zeolite, Purification
This document summarizes the summer training report submitted by four students from Amritsar College of Engineering & Technology at the Punjab State Power Corporation Limited Transformer Repair Workshop in Amritsar. The workshop repairs damaged transformers to save costs compared to the private sector. It has two main circles and aims to repair 120 units per month. The report describes the workshop organization and sections for washing, repairing, drying, assembling, testing and storing transformers. It also explains transformer components, types, workings, efficiency tests and applications.
IRJET- Automatic Water Level Indicator and Controller by using ARDUINOIRJET Journal
This document summarizes an academic paper that describes an automatic water level indicator and controller system using an Arduino. The system uses an ultrasonic sensor to measure the water level in an overhead tank. It can automatically turn a water pump on when the level is low and off when the level is high, preventing overflow and wastage of water. This reduces human involvement in operating the pump and ensures a continuous supply of water. The system provides a simple, low-cost way to automatically control and monitor water levels.
Practical Medium and High voltage Testing of Electrical Equipment for Enginee...Living Online
Testing is an essential activity in any engineer’s career. Whatever your role in industry (electrical designer, purchase engineer, manufacturer, installation contractor or maintenance engineer) a solid knowledge of tests to be carried out on a given piece of electrical equipment and interpretation of results obtained is a necessity. This workshop is designed to familiarise you with various aspects of testing general electrical equipment and high voltage testing in particular.
Examples will be cited from various international standards regarding the procedure for conducting of tests and interpreting the test results. The need for keeping proper records of tests conducted both in the initial stages and later during routine maintenance will be discussed. Some of the tests are too complex to be performed on a routine basis or may require specialised equipment which may not be normally available to user industries or even manufacturers. This is where the services of an independent and accredited test lab is useful. The role of such labs will be briefly discussed.
WHO SHOULD ATTEND?
Building service designers
Consulting engineers
Control engineers
Data systems planners and managers
Electrical engineers
Electrical technicians
Instrumentation engineers
Instrumentation technicians
Maintenance engineers
Power system protection engineers
Project engineers
MORE INFORMATION: http://www.idc-online.com/content/practical-medium-high-voltage-testing-electrical-equipment-engineers-and-technicians-48
device generating elecricity by footstep using peizoelectic materialNihir Agarwal
This document summarizes a method for generating electricity from human footstep using piezoelectric materials. It discusses how piezoelectric sensors in footwear or flooring can convert the mechanical energy from walking or running into electrical energy. The document evaluates different piezoelectric materials and connection configurations to determine the most effective design. A series-parallel connection of piezoelectric crystals is found to generate both a usable voltage and current from footstep force. This approach aims to harness wasted human energy for power generation in a cleaner and more sustainable way.
Domestic wiring refers to wiring done in homes to provide electrical power for lighting, fans, and appliances while ensuring safety. Key factors that affect the choice of wiring include durability to withstand weather and fumes, electrical safety to prevent shocks and fires, appearance, cost effectiveness based on the building type and purpose, accessibility of switches and plug points, low maintenance costs, and protection against mechanical damage. Common aspects of domestic wiring systems that are discussed include 3-phase power, service mains, meter boards, distribution boards, concealed and multi-way circuit wiring, overcurrent protection devices, earthing, and residual current circuit breakers.
EST 130, Part B, Basic Electronics EngineeringCKSunith1
The attached narrated power point presentation explains the meaning of electronics. It traces the evolution of electronics and also mentions a few applications of electronics. The material will be useful for KTU first year students who prepare for the subject EST 130, Part B, Basic Electronics Engineering.
EMI refers to electromagnetic interference, or unwanted electromagnetic signals that can disrupt other electronic devices. EMC refers to electromagnetic compatibility, which is the ability of a device to function properly without disrupting or being disrupted by other electromagnetic signals. Electronic products must meet EMI and EMC standards before being released to ensure they do not interfere with other devices and are not interfered with themselves. Following design guidelines and using EMI-compliant components can help products pass EMI/EMC tests on the first try.
A lightning arrester, also known as a lightning conductor, is a device used to protect electrical power systems and telecommunications systems from damage caused by lightning strikes. It has a high voltage terminal connected to the power line and a ground terminal. When a lightning surge travels along the power line, the arrester diverts the current through itself to ground, usually by means of an arc across an air gap. Common types of lightning arresters include rod arresters, horn gap arresters, multi gap arresters, and various types using silicon carbide or metal oxide components. A horn gap arrester consists of two horn-shaped metal rods separated by a small air gap, connected to the power line through a resistance and choke coil to
This document describes the design of a solar-powered mobile phone charger. It begins with an introduction to solar cells and the photovoltaic effect. It then discusses the specifications of the charger, which uses a 5.5V/1000mA solar panel to output 300-550mA to charge a mobile phone in about 60 minutes. The document includes a block diagram and circuit diagram of the charger. It concludes that the solar charger provides ripple-free charging to increase battery life without developing high voltages.
Automatic Light Control using LDR and PIR SensorZiauddin Ridoy
The main purpose of designing this project is to prevent loss of current unnecessarily during day time.
During night the bulb will automatically glow .
COMPONENTS REQUIRED :
RELAY
LIGHT EMITTING DIODE (LED)
LIGHT DEPENDENT RESISTOR (LDR)
PASSIVE INFRARED SENSOR (PIR)
RESISTOR (1k ohm)
DIODE
TRANSISTOR (BC547)
BATTERY (POWER SOURCE)
A MOSFET is a semiconductor device that can amplify or switch electronic signals. It has three terminals - drain, source, and gate. Depending on whether the semiconductor material between the drain and source is n-type or p-type, a MOSFET can be an n-channel or p-channel type. Applying a positive voltage to the gate of an n-channel MOSFET or a negative voltage to the gate of a p-channel MOSFET allows current to flow between the drain and source. MOSFETs are commonly used as switches in digital circuits like processors and as amplifiers in analog circuits. They are also used in memory devices, power supplies, and other electronic applications.
This document introduces a simple low power inverter circuit that uses an IC CD4047 to generate a square wave that switches transistors connected to a transformer. The transformer converts the DC input to a 230V AC output. The circuit uses common components like capacitors, resistors, transistors, diodes and a transformer. It has advantages of providing clean output and requiring little maintenance while its disadvantages include limited capacity and inability to drive inductive loads. Potential applications include powering devices from DC sources and serving as portable AC power sources.
The document provides an overview of Powerpoint Engineering Limited, an Irish company that supplies electrical test equipment, safety equipment, power cable accessories, calibration services, and training. It details the products, services, training courses, and contact information offered by the company. The company has been operating since 1996 and is an authorized distributor for various leading manufacturers of electrical testing and safety equipment.
This CV summarizes Cameron Jefferies' experience and qualifications. He has over 20 years of experience as a registered electrician with expertise in electrical inspection, design, project management, installation supervision, and teaching/mentoring. He has extensive experience programming PLCs, HMIs, and SCADA systems for various industries. He is looking for a role that allows him to continue growing professionally while promoting electrical safety.
Robotic monitoring of powersystems by sriharshaSri Harsha
This document discusses a mobile robot system for monitoring underground power cables. The robot, called CRUISER, is equipped with multiple sensors to detect factors that could cause cable faults. It uses infrared sensors to detect excess heat, acoustic sensors to detect partial discharges, and electric field sensors to measure cable properties. The robot can inspect cables in hazardous environments and tightly enclosed spaces. Its goal is to effectively monitor cable condition and prevent failures through early fault detection.
The document provides information about electrical and electronics engineering careers. It defines engineering and the roles of electrical and electronic engineers. It then discusses why one should study electrical and electronics engineering, noting opportunities for high pay, job satisfaction, variety of career paths, intellectual development, and making a positive impact. The document outlines typical career paths, skills needed, potential employers in various industries, pay ranges, and demand in the field. It emphasizes gaining practical experience through internships.
The Students of ECE have a Bright Future as the Automation is fast catching up across all the industries, Call it Manufacturing, Automotive, Textile, Civil, Energy, Aero-space, Medical, Home Automation, Security. There is a great demand for Skilled & Knowledge work force. So look out for wonderful opportunities coming towards the passed out students way.
This document discusses earthing and earth pits. It defines earthing as connecting an object to the general mass of earth using an earth electrode. An earth electrode is a metal plate or pipe electrically connected to the ground. Proper earthing is important for safety and protection. When designing an earth pit, factors like soil resistivity, moisture content, and salt concentration must be considered. Soil resistivity affects the effectiveness of earthing and varies based on these conditions. Rod or pipe electrodes should be driven to a depth of at least 2.5 meters, with alternative layers of charcoal/coke and salt to improve conductivity.
The document discusses insulation resistance testing (IRT), also known as megger testing. IRT determines the electrical integrity of wires by identifying faulty wires. Faulty electrical wiring is a major cause of fires. The document also lists several commercial and residential clients that the author has performed IRT or megger testing for at their properties located in Metro Manila and nearby provinces.
The document discusses diodes, including their history and components. It describes how a diode is constructed from a P-type and N-type semiconductor material, forming a PN junction. At the junction, electrons diffuse into holes, creating a depletion region that acts as an insulator under reverse bias but allows current to flow under forward bias. The document outlines diode applications such as rectification in power supplies and their characteristic I-V curve.
This document provides an overview of transformers, including their structure, working principle, construction, losses, and applications. Transformers are devices that change AC electric power at one voltage level to another through magnetic coupling of two coils. They allow interchange of electric energy between circuits without a direct connection. The transformer consists of a primary coil, secondary coil, and magnetic core. When an alternating current flows through the primary, it induces a changing magnetic flux that is transferred to the secondary coil to induce voltage. Transformers experience losses from copper, hysteresis, and eddy currents. They are used widely in power transmission and applications like televisions and cameras.
Smart and automated control of water level, temperature and purification (1)Upamanyu Ray
Water is the most important of Nature’s gift to mankind, especially now with endangerment of freshwater. Without water, there is no life. So, water management should reduce its wastage. As a first step, this controller will automatically switch ON and OFF the domestic water pump system depending on the water tank and underground sump levels (to prevent dry run). Along with that, the system purifies and heats the water (to a soothing lukewarm). In this paperwork, we made an effort to design a costeffective and complete system using Arduino, Ultrasonic transducers, Zeolite Solution, Temperature and Humidity transducers, for water level indication, temperature control and water purification. The Arduino controls the storage level of water in a tank, its heating and the amount of zeolite mixed through SPST relays, without any wastage of water or power.
Keywords: Water, Management, Arduino, Ultrasonic, Relay, Temperature, Zeolite, Purification
This document summarizes the summer training report submitted by four students from Amritsar College of Engineering & Technology at the Punjab State Power Corporation Limited Transformer Repair Workshop in Amritsar. The workshop repairs damaged transformers to save costs compared to the private sector. It has two main circles and aims to repair 120 units per month. The report describes the workshop organization and sections for washing, repairing, drying, assembling, testing and storing transformers. It also explains transformer components, types, workings, efficiency tests and applications.
IRJET- Automatic Water Level Indicator and Controller by using ARDUINOIRJET Journal
This document summarizes an academic paper that describes an automatic water level indicator and controller system using an Arduino. The system uses an ultrasonic sensor to measure the water level in an overhead tank. It can automatically turn a water pump on when the level is low and off when the level is high, preventing overflow and wastage of water. This reduces human involvement in operating the pump and ensures a continuous supply of water. The system provides a simple, low-cost way to automatically control and monitor water levels.
Practical Medium and High voltage Testing of Electrical Equipment for Enginee...Living Online
Testing is an essential activity in any engineer’s career. Whatever your role in industry (electrical designer, purchase engineer, manufacturer, installation contractor or maintenance engineer) a solid knowledge of tests to be carried out on a given piece of electrical equipment and interpretation of results obtained is a necessity. This workshop is designed to familiarise you with various aspects of testing general electrical equipment and high voltage testing in particular.
Examples will be cited from various international standards regarding the procedure for conducting of tests and interpreting the test results. The need for keeping proper records of tests conducted both in the initial stages and later during routine maintenance will be discussed. Some of the tests are too complex to be performed on a routine basis or may require specialised equipment which may not be normally available to user industries or even manufacturers. This is where the services of an independent and accredited test lab is useful. The role of such labs will be briefly discussed.
WHO SHOULD ATTEND?
Building service designers
Consulting engineers
Control engineers
Data systems planners and managers
Electrical engineers
Electrical technicians
Instrumentation engineers
Instrumentation technicians
Maintenance engineers
Power system protection engineers
Project engineers
MORE INFORMATION: http://www.idc-online.com/content/practical-medium-high-voltage-testing-electrical-equipment-engineers-and-technicians-48
device generating elecricity by footstep using peizoelectic materialNihir Agarwal
This document summarizes a method for generating electricity from human footstep using piezoelectric materials. It discusses how piezoelectric sensors in footwear or flooring can convert the mechanical energy from walking or running into electrical energy. The document evaluates different piezoelectric materials and connection configurations to determine the most effective design. A series-parallel connection of piezoelectric crystals is found to generate both a usable voltage and current from footstep force. This approach aims to harness wasted human energy for power generation in a cleaner and more sustainable way.
Domestic wiring refers to wiring done in homes to provide electrical power for lighting, fans, and appliances while ensuring safety. Key factors that affect the choice of wiring include durability to withstand weather and fumes, electrical safety to prevent shocks and fires, appearance, cost effectiveness based on the building type and purpose, accessibility of switches and plug points, low maintenance costs, and protection against mechanical damage. Common aspects of domestic wiring systems that are discussed include 3-phase power, service mains, meter boards, distribution boards, concealed and multi-way circuit wiring, overcurrent protection devices, earthing, and residual current circuit breakers.
EST 130, Part B, Basic Electronics EngineeringCKSunith1
The attached narrated power point presentation explains the meaning of electronics. It traces the evolution of electronics and also mentions a few applications of electronics. The material will be useful for KTU first year students who prepare for the subject EST 130, Part B, Basic Electronics Engineering.
EMI refers to electromagnetic interference, or unwanted electromagnetic signals that can disrupt other electronic devices. EMC refers to electromagnetic compatibility, which is the ability of a device to function properly without disrupting or being disrupted by other electromagnetic signals. Electronic products must meet EMI and EMC standards before being released to ensure they do not interfere with other devices and are not interfered with themselves. Following design guidelines and using EMI-compliant components can help products pass EMI/EMC tests on the first try.
A lightning arrester, also known as a lightning conductor, is a device used to protect electrical power systems and telecommunications systems from damage caused by lightning strikes. It has a high voltage terminal connected to the power line and a ground terminal. When a lightning surge travels along the power line, the arrester diverts the current through itself to ground, usually by means of an arc across an air gap. Common types of lightning arresters include rod arresters, horn gap arresters, multi gap arresters, and various types using silicon carbide or metal oxide components. A horn gap arrester consists of two horn-shaped metal rods separated by a small air gap, connected to the power line through a resistance and choke coil to
This document describes the design of a solar-powered mobile phone charger. It begins with an introduction to solar cells and the photovoltaic effect. It then discusses the specifications of the charger, which uses a 5.5V/1000mA solar panel to output 300-550mA to charge a mobile phone in about 60 minutes. The document includes a block diagram and circuit diagram of the charger. It concludes that the solar charger provides ripple-free charging to increase battery life without developing high voltages.
Automatic Light Control using LDR and PIR SensorZiauddin Ridoy
The main purpose of designing this project is to prevent loss of current unnecessarily during day time.
During night the bulb will automatically glow .
COMPONENTS REQUIRED :
RELAY
LIGHT EMITTING DIODE (LED)
LIGHT DEPENDENT RESISTOR (LDR)
PASSIVE INFRARED SENSOR (PIR)
RESISTOR (1k ohm)
DIODE
TRANSISTOR (BC547)
BATTERY (POWER SOURCE)
A MOSFET is a semiconductor device that can amplify or switch electronic signals. It has three terminals - drain, source, and gate. Depending on whether the semiconductor material between the drain and source is n-type or p-type, a MOSFET can be an n-channel or p-channel type. Applying a positive voltage to the gate of an n-channel MOSFET or a negative voltage to the gate of a p-channel MOSFET allows current to flow between the drain and source. MOSFETs are commonly used as switches in digital circuits like processors and as amplifiers in analog circuits. They are also used in memory devices, power supplies, and other electronic applications.
This document introduces a simple low power inverter circuit that uses an IC CD4047 to generate a square wave that switches transistors connected to a transformer. The transformer converts the DC input to a 230V AC output. The circuit uses common components like capacitors, resistors, transistors, diodes and a transformer. It has advantages of providing clean output and requiring little maintenance while its disadvantages include limited capacity and inability to drive inductive loads. Potential applications include powering devices from DC sources and serving as portable AC power sources.
The document provides an overview of Powerpoint Engineering Limited, an Irish company that supplies electrical test equipment, safety equipment, power cable accessories, calibration services, and training. It details the products, services, training courses, and contact information offered by the company. The company has been operating since 1996 and is an authorized distributor for various leading manufacturers of electrical testing and safety equipment.
This CV summarizes Cameron Jefferies' experience and qualifications. He has over 20 years of experience as a registered electrician with expertise in electrical inspection, design, project management, installation supervision, and teaching/mentoring. He has extensive experience programming PLCs, HMIs, and SCADA systems for various industries. He is looking for a role that allows him to continue growing professionally while promoting electrical safety.
Rhkytech Systems LTD is a startup company established in 2011 that provides integrated security solutions and electrical installations. They employ a team of highly skilled technicians to offer services such as installation of CCTV cameras, electric fences, access controls, and solar panels. Rhkytech aims to set high standards for performance, reliability, and customer service. They also provide consultation services and source installation materials. Some of Rhkytech's satisfied clients include Taamland Hardware Ltd, Equisitive Montessori International school, and Hayer Bishan Sigh and Sons.
Inspection, Testing and Commissioning of Electrical Switchboards, Circuit Bre...Living Online
THE WORKSHOP:
Whether you are designing, specifying, installing, testing or commissioning electrical equipment from small to large commercial and industrial installations, you need to have a thorough understanding of switchboards, switchgear, circuit breakers and associated protective relays.
The overall focus of this workshop is on electrical inspection, testing and commissioning and will commence with a detailed examination of switchgear (and circuit breakers). Circuit breakers are critical components in electrical distribution systems and their operation significantly affects the overall operation of the system. Protection relays are then discussed. These are used in power systems to maximise continuity of supply and are found in both small and large power systems from generation, through transmission, distribution and utilisation of power in plant, industrial and commercial equipment.
We cover commissioning and periodic inspection of cables and their various failure modes and how to detect these faults. The often neglected topic of switchboards will be detailed next, followed by the interesting topic of interfacing to the control system (either PLC’s or other control devices).
Case studies and practical sessions are used throughout to illustrate key practical principles.
This workshop covers key elements in a practical and project focused way. Many people assume (wrongly) that inspecting, testing and commissioning is a fairly straightforward process and is simply a rubber stamp confirmation of a so-called outstanding design. Our experience in the field demonstrates quite the opposite; where the litany of problems ranges from design and installation errors to equipment manufacturing defects. It is best that these problems are identified and corrected before the inevitable downtime comes in an operational installation where many thousands of dollars are lost in correcting the faults. The situation today is made more challenging by the heightened safety requirements and interfacing to low powered electronic control and monitoring devices (such as PLC’s) using software that has to also be verified.
Today's portable devices, intelligent power management is mandatory as the combination of wireless communication, navigation, touch screens and other technologies require increased power consumption.
elec calc - electrical calculation Low and High Voltage software | BIMGuillem Fiter
electrical sizing software for low and medium voltage facilities. Earthing systems, discrimitian among protections, short circuit currents, international standards IEC, calculation under different scenarios.
EGICAT is a leading mechanical installation and services company in Egypt specialized in HVAC, VRF, automation, and sanitary systems. They have installed over 12,000 tons of VRF systems and provided mechanical systems for high-profile projects such as the Goethe Institute and Grand Egyptian Museum. EGICAT offers a range of HVAC, heating, automation, control screens, and sanitary products with energy efficient and customized solutions.
Dron & Dickson is a leading specialist in supplying and maintaining hazardous area electrical equipment. They have over 85 years of experience working in industries like oil & gas, mining, petrochemicals. They provide inspection, maintenance and repair services for explosive electrical equipment globally, using qualified technicians. Their services include Ex equipment inspections, maintenance and repair to meet international standards, and they also offer electrical contracting, rope access, and supply of hazardous area electrical products from their international network.
EUTEX International Brochure USA - High Quality Electrical Products Supplying...Bock Mary
EUTEX International is not a typical electrical product and service provider, but rather a company committed to only the highest quality of turnkey solutions from specification, offering top-class electrical cables and accessories worldwide. Visit http://www.eutexinternational.com, for more information.
This document provides information about Jojo & Partners, a consulting firm that offers mechanical, electrical, and telecommunication engineering services. It outlines the firm's mission, values, services portfolio, and team. Jojo & Partners provides consulting services for various projects including electrification, lighting, power generation, HVAC, fire safety, security, plumbing, and more. It has completed projects for organizations such as Mobil Oil, Central Bank of Nigeria, universities, and private developers.
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22. Smart - iPDU
Variants Offered
• Aggregate Metering: Unit Level
metering, Measurement of all the
electrical parameters of a unit/PDU.
• Individual Metering: Outlet Level
metering, Measurement of all the
electrical parameters at outlet level.
• Aggregate Metering Individual
Switched : Unit level Measurement
and control individual outlet
status(ON/OFF).
• Individual Metering Individual
Switched: Outlet level Measurement
and control individual outlet
status(ON/OFF).
Features
➢ Distribute power to critical IT equipments with 100% reliability
➢ Monitor Electrical Parameters locally and remotely
➢ Available with various types of Outlets with Phase-wise different colors
➢ Environmental monitoring
➢ Data logging
➢ Hot swapping of controller cards with ‘ZERO’-Downtime
➢ Color LCD Display Or Seven Segment LED (2 Options available)
➢ USB provision
➢ Optional Wi-Fi
➢ Warning for overload and low load
➢ Daisy-Chaining through RS-485 (Max 16 for AM & 8 for AMIS, IMIS, IM)
➢ Can be integrated to various DCIM Software
23. Unique Features of Elcom Smart PDU
Hot-Swappable Controller for
guaranteed uptime
In case of technical failure; the
controller is Field-replaceable, which
assures the ‘ZERO’-Downtime
property of Data Center.
24. Parameter Measured
➢ Voltage
➢ Current
➢ Frequency
➢ Active Power
➢ Apparent Power
➢ Reactive Power
➢ Power Consumption
➢ Power Factor
➢ Temperature
➢ Humidity
25. Elcom’s Ecosystem for PDUs
In-house Tool
Design &
Development of
tools
In-house Fabrication
& Powder Coating
In-house
manufacturing
of sockets,
connectors,
wiring harness
parts
In-house
assembly
Calibration &
Testing
Design &
Development
Hardware/Firmware • Most components
manufactured in-house
• Complete control on PDU
manufacturing
• Complete control over
technology due to embedded
development managed
in-house
• Technical Competency and ability
to customize PDU configurations
and offer best suited products for
clients’ needs.
Elcom’s
Ecosystem
for PDUs
26. PDU Development Life Cycle at Elcom
Hardware Architecture Schematic Layout PCB Testing
Requirements
HARDWARE
Integration, Prototype
Design and
Compliance Test
Firmware Architecture Coding Testing
FIRMWARE
PRODUCT DEVELOPMENT LIFE CYCLE
SOFTWARE DEVELOPMENT LIFE CYCLE
Tooling & Fabrication
Technical competency
and ability to
elaborate technical
requirements and
build the complete
product from
scratch.
29. One Technology Multiple Solution
Router
DHCP Assigned IP
Address / Static IP
DHCP Assigned IP
Address / Static IP
Computer with
EDCIM Installed
30. One Technology Multiple Solution
Router
DHCP Assigned IP
Address / Static IP
DHCP Assigned IP
Address / Static IP
Internet
PC with EDCIM
Installed within the
Datacenter network
PC outside the
Datacenter network
36. Three Step Installation
➢ Physical Mounting : Free Training on Physical mounting of equipment.
➢ Electrical Installation : Detailed Study/Analysis of your power network to setup Equipment.
➢Communication Interfaces installation: Free Training available on MODBUS- RS-485/422
communication setup
41. Power Entry Components (NEMA) used for Power Distribution
Units(Cont.)
ENO-1112
ENO-3123-X ENO-4123
ENO-3112 ENO-3112-F
ENO-1111-X
(with IDC terminals)
ENO-3113
ENO-0520-11
(with IDC terminals)