The document provides an orientation for experiments to be conducted in the EMEC lab, including testing various electrical machines using different circuits and measurements. Experiments will involve open and short circuit tests on transformers, motors, and generators using equipment mounted on various panels that receive single or three phase AC power as well as DC power sources. Proper safety procedures and experimental methods are outlined.
This document outlines 10 experiments related to electrical machines and transformers. It provides the objectives and required apparatus for each experiment, which include testing transformers, DC motors and generators, AC induction motors and alternators. The experiments involve open circuit and short circuit tests, load testing, speed control, synchronization and determination of motor/generator characteristics. A variety of testing equipment such as meters, rheostats and circuit breakers are listed as required for each experiment.
This document provides a model evaluation report for a Texas Instruments TL431 voltage regulator component. It includes the model parameters, SPICE simulation results comparing measured and simulated component characteristics, and evaluation circuits used for testing. Simulation results match measurements well with less than 10% error for most output and reference characteristics.
This document describes several series of low voltage current transformers and power supply components, including their specifications and standards they comply with. The components include current transformers, control transformers, rectification transformers, lighting transformers, auto-coupling transformers, dry-type transformers, rheostats, reactors, voltage regulators, voltage stabilizers, precision voltage stabilizers, uninterruptible power supplies, and emergency power supplies. They have applications in power distribution and motor control systems.
The LM555/NE555/SA555 is a highly stable timer capable of producing accurate timing pulses from microseconds to hours. It has a monostable operation where the time delay is controlled by one external resistor and capacitor. It also has an astable operation where the frequency and duty cycle are accurately controlled by two external resistors and one capacitor. The timer has high current drive capability, adjustable duty cycle, and temperature stability of 0.005%/°C.
The LM555 is a timer integrated circuit that can generate accurate time delays or oscillations. It can operate in both monostable and astable modes using only external resistors and capacitors. The LM555 provides precision timing for applications such as timing, pulse generation, and pulse width modulation. It can source or sink up to 200mA and is available in 8-pin packages.
The document describes the STV8172A vertical deflection booster IC. It can generate flyback voltages up to 70V and provide up to 3A of output current to drive a CRT yoke. It has features like a power amplifier, flyback generator, and thermal protection. The document provides details on the IC's electrical specifications, application hints for DC and AC-coupled configurations, and considerations for ripple rejection and peak current calculations.
This document provides instructions for students taking an Electrical and Electronics Engineering laboratory course on Power Electronics and Drives. It begins with general safety instructions for all EEE lab courses, such as being punctual and wearing proper attire. Next, it lists 13 experiments to be performed in the course, covering topics like gate pulse generation, characteristics of power electronic devices, and converter circuits. Finally, it provides details on the experiments, including circuit diagrams, procedures, expected waveforms, and requirements for recording observations and results. The document aims to prepare students for experiments examining key concepts in power electronics and motor drives.
This document provides specifications for a 75W triple output switching power supply with model numbers NET-75A through NET-75D. It has three output channels that provide different combinations of positive, negative, and ground voltages. It has protections for overloads, over voltages, and short circuits. Key specifications include voltage ranges, current ratings, ripple and noise levels, efficiency ratings, and safety certifications. Dimensions and mechanical details are also provided.
This document outlines 10 experiments related to electrical machines and transformers. It provides the objectives and required apparatus for each experiment, which include testing transformers, DC motors and generators, AC induction motors and alternators. The experiments involve open circuit and short circuit tests, load testing, speed control, synchronization and determination of motor/generator characteristics. A variety of testing equipment such as meters, rheostats and circuit breakers are listed as required for each experiment.
This document provides a model evaluation report for a Texas Instruments TL431 voltage regulator component. It includes the model parameters, SPICE simulation results comparing measured and simulated component characteristics, and evaluation circuits used for testing. Simulation results match measurements well with less than 10% error for most output and reference characteristics.
This document describes several series of low voltage current transformers and power supply components, including their specifications and standards they comply with. The components include current transformers, control transformers, rectification transformers, lighting transformers, auto-coupling transformers, dry-type transformers, rheostats, reactors, voltage regulators, voltage stabilizers, precision voltage stabilizers, uninterruptible power supplies, and emergency power supplies. They have applications in power distribution and motor control systems.
The LM555/NE555/SA555 is a highly stable timer capable of producing accurate timing pulses from microseconds to hours. It has a monostable operation where the time delay is controlled by one external resistor and capacitor. It also has an astable operation where the frequency and duty cycle are accurately controlled by two external resistors and one capacitor. The timer has high current drive capability, adjustable duty cycle, and temperature stability of 0.005%/°C.
The LM555 is a timer integrated circuit that can generate accurate time delays or oscillations. It can operate in both monostable and astable modes using only external resistors and capacitors. The LM555 provides precision timing for applications such as timing, pulse generation, and pulse width modulation. It can source or sink up to 200mA and is available in 8-pin packages.
The document describes the STV8172A vertical deflection booster IC. It can generate flyback voltages up to 70V and provide up to 3A of output current to drive a CRT yoke. It has features like a power amplifier, flyback generator, and thermal protection. The document provides details on the IC's electrical specifications, application hints for DC and AC-coupled configurations, and considerations for ripple rejection and peak current calculations.
This document provides instructions for students taking an Electrical and Electronics Engineering laboratory course on Power Electronics and Drives. It begins with general safety instructions for all EEE lab courses, such as being punctual and wearing proper attire. Next, it lists 13 experiments to be performed in the course, covering topics like gate pulse generation, characteristics of power electronic devices, and converter circuits. Finally, it provides details on the experiments, including circuit diagrams, procedures, expected waveforms, and requirements for recording observations and results. The document aims to prepare students for experiments examining key concepts in power electronics and motor drives.
This document provides specifications for a 75W triple output switching power supply with model numbers NET-75A through NET-75D. It has three output channels that provide different combinations of positive, negative, and ground voltages. It has protections for overloads, over voltages, and short circuits. Key specifications include voltage ranges, current ratings, ripple and noise levels, efficiency ratings, and safety certifications. Dimensions and mechanical details are also provided.
This document provides specifications for the RS-150 series 150W single output switching power supply. It has universal AC input, short circuit and over voltage protections, and provides outputs of 3.3V to 48V at currents of up to 30A. Key specifications include efficiency between 75-87%, operating temperature range of -20°C to +70°C, and compliance with various EMC and safety standards.
ICL7660 Monolithic CMOS Voltage ConvertersGeorgage Zim
The ICL7660 and ICL7660A are monolithic CMOS voltage converter circuits that can convert a positive input voltage into complementary negative output voltages, with input ranges of 1.5V to 10V for the ICL7660 and 1.5V to 12V for the ICL7660A. They require only two external capacitors and have high voltage conversion efficiency between 97-99.9%. The devices contain an internal regulator, oscillator, switches, and logic to ensure latchup-free operation over a wide temperature range.
SPICE MODEL of KGH15N120NDA (Professional+FWDS Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120NDA (Professional+FWDS Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
Original Transition-Mode PFC Controller IC LD7591GS 7591 SOP-8 New LeadtrendAUTHELECTRONIC
This document provides information about the LD7591 transition-mode PFC controller, including:
- It is a voltage mode PFC controller that operates in transition mode with protections like OVP, OCP, and brown-in protection.
- It has features like low startup current, over voltage protection, open feedback protection, disable function, and integrated current sensing.
- Typical applications include adapters over 65W, open frame switching power supplies, LCD TV power supplies, and LED power supplies.
This document provides specifications for a 200W single output power supply series with PFC function. Key features include universal AC input, built-in active PFC, overcurrent, overvoltage and overtemperature protections, and 100% full load burn-in testing. It lists specifications for 9 models varying in output voltage from 3.3V to 48V, including electrical performance parameters, protections, functions, environmental limits, safety standards, and mechanical dimensions.
SPICE MODEL of KGH15N120NDA (Professional+FWDP Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120NDA (Professional+FWDP Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
This document summarizes the specifications of a 100W single output switching power supply series called the RS-100. It includes 6 models that output different voltages from 3.3V to 48V with varying current ratings. The power supplies have protections against overloads, over voltages, and short circuits. Key specifications listed are voltage and current ratings, ripple and noise levels, efficiency ratings, input voltage ranges, operating temperatures, and safety certifications. Dimensions and mounting hole locations are provided in a mechanical drawing.
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.vn
The LM555 is a highly stable integrated circuit used for generating precise time delays or oscillation. It can operate in both monostable (one-shot) and astable (oscillator) modes using only external resistors and capacitors. In monostable mode, the output is triggered on for a precise time determined by a single resistor and capacitor. In astable mode, the output oscillates at a frequency and duty cycle set by two resistors and one capacitor. The LM555 has applications in precision timing, pulse generation, and frequency modulation.
LED Streetlight APEC Demo Performance_SMappus 03062013 AC 12 Mar 2013Steve Mappus
This document provides specifications and design details for a 100W LED power supply using Fairchild semiconductor components. The power supply uses a BCM PFC controller and boost follower for wide input voltage range of 80-310VAC. A 2-switch flyback converter provides constant current or constant voltage output to 1 or 4 LED channels. Control and protection ICs are also detailed to balance current across multiple LED strings.
This document summarizes a DC voltage current source/monitor device that is suitable for testing high-voltage semiconductors and LED luminaires. The device can output voltages up to +250V and currents up to ±320mA with high accuracy of ±0.02%. It has various measurement and sweep functions including pulse measurement with a minimum pulse width of 50μs. The device also has a suspend function to control the output status and prevent transient currents when connecting voltage sources.
This document provides information about conducting experiments to study different types of induction motor starters, including direct online (DOL), auto transformer, star-delta, and rotor resistance starters. It describes the theory behind using starters, the necessity of starters to reduce starting current and protect the motor, and gives details about the operation and advantages of each type of starter. The objectives are to study and connect examples of each starter type and understand their working principles. Precautions and procedures for conducting the experiments are also outlined.
SPICE MODEL of KGH15N120NDA (Professional+FWD+SP Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120ND (Professional+FWD+SP Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
The document discusses various power system components including:
1. A WEA1-BuckHolz Relay that protects transformers from internal faults.
2. Tap changers that regulate voltage on transformers.
3. Different bus bar schemes used in grid stations including single breaker single bus bar and double breaker double bus bar configurations.
4. Generation sources in Pakistan like thermal, hydel, IPP and their total installed capacities.
5. Types of transmission lines like short, medium and long and benefits of higher voltage transmission like reduced losses.
This document provides specifications for a 150W triple output power supply with model numbers TP-150A through TP-150D. It has three output channels that provide different combinations of positive, negative, and ground voltages. It features universal AC input, power factor correction, overvoltage and overcurrent protection, forced air cooling, and a 3 year warranty. Electrical specifications include output voltage ranges and tolerances, current ratings, ripple and noise levels, efficiency, and safety certifications. Mechanical details include dimensions, connectors, and a block diagram.
PBZ Series Intelligent Bi-Polar Power Supplies
The PBZ series is a bipolar type DC regulated power source that can continuously change both + and – polarities passing through 0 without changing the output terminal.
By adopting a “Switching + Linear” system, the PBZ is able to realize both drastic weight reduction as well as high speed and low noise operation. Since operation covers 4 quadrants, power can be both supplied (source) and absorbed (sink). The PBZ can also drive inductive or capacitive loads. The unit also equips a signal generator function which enables waveform and sequence creation. The PBZ is also capable of synchronized operation which is required for voltage variation tests, and it can also be expanded for large current applications through master-slave parallel operation.
The document provides a technical specification for an SF-100 transformer test system designed to test single and three phase distribution and power transformers up to 11kV with a maximum impedance of 6%. The system can perform tests according to IEC60076 and IEEE C57 standards and includes a regulator, potential transformers, current transformers, capacitor bank, control desk, and PC software for automated testing and data analysis. The control desk houses meters, a PLC controller, and power analyzer for automated testing and measurement of parameters like excitation current, losses, impedance, and induced overvoltage.
The document describes optoisolator triac drivers that consist of an infrared emitting diode optically coupled to a silicon bilateral AC switch. The devices provide isolation between low voltage logic and 115/240 Vac lines, allowing random phase control of high current triacs. They feature enhanced switching stability of inductive loads. The devices have high isolation voltage, operate from -40 to 85°C, and can control solenoids, lamps, switches, and motor controls.
Power transformer testing and commissioning guidelines rAshish Patel
1. The document provides guidelines for testing and commissioning power transformers, including pre-commissioning checks, electrical checks, and tests to be performed. It details tests such as ratio testing, vector grouping, no-load current, short-circuit current, insulation testing, and checks of protections like the Buchholz relay.
2. Key electrical checks include verifying the on-load tap changer operation, measuring no-load currents, performing short-circuit tests, and measuring insulation resistance. The transformer, oil, and protections must pass all tests before energization.
3. After energization, the transformer is monitored for 24 hours to check for abnormalities before full commissioning.
This document contains the syllabus and procedures for experiments in the Electrical Machines I Lab. The experiments focus on obtaining characteristics of DC machines like generators and motors, as well as transformers. Key experiments include open/load characteristics of DC generators and motors, efficiency tests, and open/short circuit tests for transformers. Precautions are outlined and tabular columns provided to record readings and calculate performance parameters like efficiency.
This document contains the syllabus and procedures for experiments in the Electrical Machines I Lab. The experiments focus on obtaining characteristics of DC machines like generators and motors, as well as load tests to determine efficiency. Key experiments include open/load characteristics of DC generators and motors, Swinburne's test on DC shunt motors, and load tests to find efficiency of DC shunt and compound motors. Procedures provide connections, precautions and step-by-step methods for collecting data and analyzing results for each experiment.
This document provides specifications for the RS-150 series 150W single output switching power supply. It has universal AC input, short circuit and over voltage protections, and provides outputs of 3.3V to 48V at currents of up to 30A. Key specifications include efficiency between 75-87%, operating temperature range of -20°C to +70°C, and compliance with various EMC and safety standards.
ICL7660 Monolithic CMOS Voltage ConvertersGeorgage Zim
The ICL7660 and ICL7660A are monolithic CMOS voltage converter circuits that can convert a positive input voltage into complementary negative output voltages, with input ranges of 1.5V to 10V for the ICL7660 and 1.5V to 12V for the ICL7660A. They require only two external capacitors and have high voltage conversion efficiency between 97-99.9%. The devices contain an internal regulator, oscillator, switches, and logic to ensure latchup-free operation over a wide temperature range.
SPICE MODEL of KGH15N120NDA (Professional+FWDS Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120NDA (Professional+FWDS Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
Original Transition-Mode PFC Controller IC LD7591GS 7591 SOP-8 New LeadtrendAUTHELECTRONIC
This document provides information about the LD7591 transition-mode PFC controller, including:
- It is a voltage mode PFC controller that operates in transition mode with protections like OVP, OCP, and brown-in protection.
- It has features like low startup current, over voltage protection, open feedback protection, disable function, and integrated current sensing.
- Typical applications include adapters over 65W, open frame switching power supplies, LCD TV power supplies, and LED power supplies.
This document provides specifications for a 200W single output power supply series with PFC function. Key features include universal AC input, built-in active PFC, overcurrent, overvoltage and overtemperature protections, and 100% full load burn-in testing. It lists specifications for 9 models varying in output voltage from 3.3V to 48V, including electrical performance parameters, protections, functions, environmental limits, safety standards, and mechanical dimensions.
SPICE MODEL of KGH15N120NDA (Professional+FWDP Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120NDA (Professional+FWDP Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
This document summarizes the specifications of a 100W single output switching power supply series called the RS-100. It includes 6 models that output different voltages from 3.3V to 48V with varying current ratings. The power supplies have protections against overloads, over voltages, and short circuits. Key specifications listed are voltage and current ratings, ripple and noise levels, efficiency ratings, input voltage ranges, operating temperatures, and safety certifications. Dimensions and mounting hole locations are provided in a mechanical drawing.
Khoa Học - Kỹ Thuật & Giải Trí: http://phongvan.org
Tài Liệu Khoa Học Kỹ Thuật: http://tailieukythuat.info
Thiết bị Điện Công Nghiệp - Điện Hạ Thế: http://dienhathe.vn
The LM555 is a highly stable integrated circuit used for generating precise time delays or oscillation. It can operate in both monostable (one-shot) and astable (oscillator) modes using only external resistors and capacitors. In monostable mode, the output is triggered on for a precise time determined by a single resistor and capacitor. In astable mode, the output oscillates at a frequency and duty cycle set by two resistors and one capacitor. The LM555 has applications in precision timing, pulse generation, and frequency modulation.
LED Streetlight APEC Demo Performance_SMappus 03062013 AC 12 Mar 2013Steve Mappus
This document provides specifications and design details for a 100W LED power supply using Fairchild semiconductor components. The power supply uses a BCM PFC controller and boost follower for wide input voltage range of 80-310VAC. A 2-switch flyback converter provides constant current or constant voltage output to 1 or 4 LED channels. Control and protection ICs are also detailed to balance current across multiple LED strings.
This document summarizes a DC voltage current source/monitor device that is suitable for testing high-voltage semiconductors and LED luminaires. The device can output voltages up to +250V and currents up to ±320mA with high accuracy of ±0.02%. It has various measurement and sweep functions including pulse measurement with a minimum pulse width of 50μs. The device also has a suspend function to control the output status and prevent transient currents when connecting voltage sources.
This document provides information about conducting experiments to study different types of induction motor starters, including direct online (DOL), auto transformer, star-delta, and rotor resistance starters. It describes the theory behind using starters, the necessity of starters to reduce starting current and protect the motor, and gives details about the operation and advantages of each type of starter. The objectives are to study and connect examples of each starter type and understand their working principles. Precautions and procedures for conducting the experiments are also outlined.
SPICE MODEL of KGH15N120NDA (Professional+FWD+SP Model) in SPICE PARKTsuyoshi Horigome
SPICE MODEL of KGH15N120ND (Professional+FWD+SP Model) in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.
The document discusses various power system components including:
1. A WEA1-BuckHolz Relay that protects transformers from internal faults.
2. Tap changers that regulate voltage on transformers.
3. Different bus bar schemes used in grid stations including single breaker single bus bar and double breaker double bus bar configurations.
4. Generation sources in Pakistan like thermal, hydel, IPP and their total installed capacities.
5. Types of transmission lines like short, medium and long and benefits of higher voltage transmission like reduced losses.
This document provides specifications for a 150W triple output power supply with model numbers TP-150A through TP-150D. It has three output channels that provide different combinations of positive, negative, and ground voltages. It features universal AC input, power factor correction, overvoltage and overcurrent protection, forced air cooling, and a 3 year warranty. Electrical specifications include output voltage ranges and tolerances, current ratings, ripple and noise levels, efficiency, and safety certifications. Mechanical details include dimensions, connectors, and a block diagram.
PBZ Series Intelligent Bi-Polar Power Supplies
The PBZ series is a bipolar type DC regulated power source that can continuously change both + and – polarities passing through 0 without changing the output terminal.
By adopting a “Switching + Linear” system, the PBZ is able to realize both drastic weight reduction as well as high speed and low noise operation. Since operation covers 4 quadrants, power can be both supplied (source) and absorbed (sink). The PBZ can also drive inductive or capacitive loads. The unit also equips a signal generator function which enables waveform and sequence creation. The PBZ is also capable of synchronized operation which is required for voltage variation tests, and it can also be expanded for large current applications through master-slave parallel operation.
The document provides a technical specification for an SF-100 transformer test system designed to test single and three phase distribution and power transformers up to 11kV with a maximum impedance of 6%. The system can perform tests according to IEC60076 and IEEE C57 standards and includes a regulator, potential transformers, current transformers, capacitor bank, control desk, and PC software for automated testing and data analysis. The control desk houses meters, a PLC controller, and power analyzer for automated testing and measurement of parameters like excitation current, losses, impedance, and induced overvoltage.
The document describes optoisolator triac drivers that consist of an infrared emitting diode optically coupled to a silicon bilateral AC switch. The devices provide isolation between low voltage logic and 115/240 Vac lines, allowing random phase control of high current triacs. They feature enhanced switching stability of inductive loads. The devices have high isolation voltage, operate from -40 to 85°C, and can control solenoids, lamps, switches, and motor controls.
Power transformer testing and commissioning guidelines rAshish Patel
1. The document provides guidelines for testing and commissioning power transformers, including pre-commissioning checks, electrical checks, and tests to be performed. It details tests such as ratio testing, vector grouping, no-load current, short-circuit current, insulation testing, and checks of protections like the Buchholz relay.
2. Key electrical checks include verifying the on-load tap changer operation, measuring no-load currents, performing short-circuit tests, and measuring insulation resistance. The transformer, oil, and protections must pass all tests before energization.
3. After energization, the transformer is monitored for 24 hours to check for abnormalities before full commissioning.
This document contains the syllabus and procedures for experiments in the Electrical Machines I Lab. The experiments focus on obtaining characteristics of DC machines like generators and motors, as well as transformers. Key experiments include open/load characteristics of DC generators and motors, efficiency tests, and open/short circuit tests for transformers. Precautions are outlined and tabular columns provided to record readings and calculate performance parameters like efficiency.
This document contains the syllabus and procedures for experiments in the Electrical Machines I Lab. The experiments focus on obtaining characteristics of DC machines like generators and motors, as well as load tests to determine efficiency. Key experiments include open/load characteristics of DC generators and motors, Swinburne's test on DC shunt motors, and load tests to find efficiency of DC shunt and compound motors. Procedures provide connections, precautions and step-by-step methods for collecting data and analyzing results for each experiment.
The document is an electrical machines laboratory manual that provides instructions and procedures for various experiments involving DC machines. It includes circuit diagrams and procedures for open circuit and load tests on DC shunt generators and motors to obtain their characteristics curves. Procedures are also given for load tests on DC series motors and Swinburne's test to determine the efficiency of a DC machine working as both a motor and generator. The document lists the required equipment and provides formulas used in calculations along with sample tabulations and graphs.
The document is a lab manual for a Power Electronics course that provides instructions on how to perform experiments to characterize various power semiconductor devices. The summary is:
[1] The manual contains 15 experiments to characterize devices like SCRs, TRIACs, MOSFETs, IGBTs and experiments on triggering circuits, choppers, AC voltage control and motor speed control.
[2] Experiment 2 involves characterizing a TRIAC in different modes of operation to determine its breakover voltages, holding current and latching current. Connections are made in circuit diagrams for modes I, II and measurements taken.
[3] Procedures, connections diagrams, calculations and questions are provided to guide students in
This document contains instructions for performing experiments on electrical machines in a lab. It provides safety guidelines and procedures for two experiments: 1) Speed control of a DC shunt motor using armature and field control methods. Graphs of speed vs armature voltage and speed vs field current are to be plotted. 2) Open circuit and short circuit tests on a single-phase transformer to determine its equivalent circuit parameters and efficiency. Calculations are to be shown to find the transformer's resistance, reactance, regulation, and efficiency at different loads. Precautions for working in the machine lab and sample viva questions are also included.
This document describes an experiment to plot the VI characteristics of a TRIAC and determine its forward and reverse break over voltages at different gate currents. Key components used include a 2N5756 TRIAC, power supplies, voltmeters, ammeters, and resistors. The forward and reverse break over voltages are found to be 100V and 60V for various gate currents between 7.5mA to 9.9mA. The results characterize the static electrical behavior of the given TRIAC.
This manual consists of some important experiments of ac electrical machines.This is prepared by satish babu and lokesh.They are working as staff in usha rama college,telaprolu.
This document outlines the test schedule for a 95 KVp, 800 mA high voltage rectifier transformer (HVR) for a 600 MW power project in India. It describes routine tests such as core tests, winding resistance tests, and insulation resistance tests. It also details functional tests to evaluate current regulation, semi-pulse operation, and fault annunciation. Finally, it specifies a type test for temperature rise evaluation under full load conditions to ensure the transformer meets guaranteed temperature limits.
ABB Contactors - 3 Pole Contactors ABB AF09 AF09Z (AC DC) Contactors
ABB Extended Product Type:
ABB AF09-30-10-11
ABB Product ID:
ABB 1SBL137001R1110
EAN: 3471523110014
ABB Catalogue Description:
ABB AF09-30-10-11 24-60V50/60HZ 20-60VDC Contactor
ABB AF09 contactors are used for controlling power circuits up to 690 V AC and 220 V DC. ABB contactors are mainly used for controlling 3-phase motors, non-inductive or slightly inductive loads. ABB AF contactors include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four ABB coils cover control voltages between 24...500 V 50/60 Hz or 20...500 V DC. ABB AF contactors can manage large control voltage variations. One ABB coil can be used for different control voltages used worldwide without any coil change. ABB AF contactors have built-in surge protection and do not require additional surge suppressors. The ABB AF... series 1-stack 3-pole contactors are of the block type design. - Main poles and auxiliary contact blocks: 3 main poles, 1 built-in auxiliary contact, front and side-mounted add-on auxiliary contact blocks (mechanically-linked auxiliary contacts compliant with Annex L of IEC 60947-5-1. N.C. mirror contacts compliant with Annex F of IEC 60947-4-1) - Control circuit: AC or DC operated - Accessories: a wide range of accessories is available. Note: AF..-30-..-11 not suitable for a direct control by PLC-output. AF..-30-..-11 contactor type available in some countries: please consult Throen & Derrick tel 00 44 191 4901547
This document outlines the minimum acceptable specifications for current transformers, potential transformers, and capacitor voltage transformers used for metering purposes at different voltage levels.
The specifications include parameters such as highest system voltage, transformer ratios, number of cores/windings, rated thermal and short circuit currents, accuracy classes, voltage and burden ratings that the transformers must conform to for different voltage levels ranging from 11kV to 245kV.
The document also specifies the applicable Indian Standards that the transformers and their insulating oils must conform to for metering applications.
The document provides instructions for experiments on power electronics laboratory equipment. It includes circuits and procedures to study the characteristics of SCR, MOSFET, IGBT using different firing circuits like R, RC and UJT. The objectives are to draw the output and transfer characteristics of these devices, determine threshold voltages and understand the operation of different firing circuits. Graphs are plotted from the observations and results are analyzed to understand the concepts of latching current, pinch-off voltage and voltage/current control of the devices.
The manual is very useful for UG EEE students for the subject Power Electronics
By
M.MURUGANANDAM. M.E.,(Ph.D).,MIEEE.,MISTE,
Assistant Professor & Head / EIE,
Muthayammal Engineering College,
Rasipuram,
Namakkal-637 408.
Cell No: 9965768327
The LM555 is an integrated circuit used for generating accurate time delays or oscillations. It can be used in monostable or astable configuration. In monostable mode, the time delay is controlled by one resistor and capacitor. In astable mode, the frequency and duty cycle are controlled by two resistors and one capacitor. The circuit can be triggered and reset. The output can source or sink up to 200mA. It has applications in precision timing, pulse generation, and sequential timing.
The document describes tests conducted on a single-phase transformer to determine its efficiency and regulation. An open circuit test was conducted to measure no-load losses. A short circuit test was used to determine copper losses and develop an equivalent circuit model. Efficiency was calculated at various load levels and power factors based on losses from the two tests. Regulation was also calculated using the short circuit test results. Plots of efficiency versus load and tables of efficiency and regulation values are presented.
Catalogue thiet bi dien abb rccb rcbo abb-dienhathe.vnDien Ha The
This document provides information on various electrical distribution and control devices from ABB, including:
- DS271 series single pole RCBOs rated from 6A to 32A for protection in electrical distribution systems.
- E250 series latching relays rated up to 16A with various contact configurations for remote control applications.
- E220 series pushbuttons and indicator lamps rated up to 16A for use in electrical installations for remote control and signaling.
Catalog rccb va rcbo abb
Catalog ABB,
Catalog Thiết Bị Điện ABB,
Catalog Điện Công Nghiệp ABB,
http://dienhathe.com,
Xem thêm các sản phẩm khác của ABB tại https://dienhathe.com
Để nhận báo giá sản phẩm ABB vui lòng gọi: 0907.764.966
The document discusses different types of integrated circuit voltage regulators. It describes the 78XX series which provides a fixed positive output voltage from 3 terminals. It notes the 79XX series provides negative output voltage. The LM317 allows adjustable output from 1.2V to 37V. Switching regulators like the ADP1612 step up voltage while the ADP2300 steps down voltage, with both exhibiting high efficiencies. External components can provide overcurrent and thermal protection to regulators. Regulators can also be used to provide a constant current to a load.
1. EMEC LAB ORIENTATION
Importance of Electrical M/Cs
Classification of Electrical M/Cs
What do you mean by testing of
Electrical M/Cs?
How do we test them? (According to
BIS, IEC)
2.
3. Experiments to be conducted in
First Cycle
O. C and S.C Tests on a Single Phase
Transformer
No load tests on a DC shunt motor
( Swinburne’s & Speed Control Test )
No load tests on a Synchronous m/c
(OC and SC test)
No load tests on a DC Shunt
generator( O.C Test & Critical Speed )
Load test on a DC Shunt generator
6. 3 phase variac connections
Use any one phase ( R/Y/B ) and neutral of three phase
Variac instead of single phase variac shown in Figs 1.3
and 1.4 for O. C and S. C test.
Keep the variac at it’s minimum position (zero) before
switching on / off the supply mains.
7. Panel Details
Machine Instruments Mounted Fuse Supply Expts to be
Panel Rating on Panel Rating 1 3 DC Conducted
No.
1 Transformer 1.Voltmeter 0- 500V 1A for Yes Variac No 1 6
2KVA, Two ( AC ) OC (3 )
115/230V 2.Ammeter 0-10A; &SC 0-230V
Two ( AC ) Test
3.Wattmeter UPF 2A for
250V/10A –one Sump-
4.Wattmeter LPF ner’s
500V/5A –one test
16 Transformer 1.Voltmeter 0-500V 1A for Yes Variac No 1 6
2KVA, Two ( AC ) OC ( 3 )
115/230V 2.Ammeter 0-10A &SC 0-230V
Three ( AC ) Test
3.Wattmeter UPF
250V/10A –one 2A for
4.Wattmeter LPF Sump-
500V/5A –one ner’s
test
8. Circuit Diagram Exp 2
272Ω/1.7A
0-2A
+
90Ω / 5A
+
7A 0-5A
+
0-250V
7A
Keep Ra (ext) at it’s maximum value while switching
ON / OFF the DC supply mains
Do not switch OFF the supply mains until the two tests
are over (Swinburne’s & speed control Tests).
15. Connection diagram for 4 point starter at panel 10
L
Fig 3.3.B
In SC test draw the table between If v/s Isc
16. Panel Details
Panel Machine Instruments Fuse Supply Expts
No. Rating Mounted on Rating 1 3 DC To be
Panel Condu-
cted
9 Alternator 1.Voltmeter AC 80A Yes Yes Yes 3 8
Coupled with 0-500V –one
DC shunt Gen 2.Ammeter AC
Alternator: 0-20A -one
10KVA, 440V, 3.Freq meter
1000rpm, 0-60Hz -one
13.2A 4. Voltmeter DC
50Hz, 3, 0-250V -one
0.8pf 5. Ammeter DC
Excit. Volts 0-15A -one
220V 6. Ammeter DC
Excit. Amps 0-2A -one
2A (3 point Starter)
DC Motor-
20BHP, 220V,
950rpm,79.8A
17. Panel Details
10 Synchronous 1.Voltmeter AC 55A Yes Yes Yes 3 8
M/C 3 0-500V –one
Motor, /, 2.Ammeter AC
231V/400V, 0-25A -one 21V
39/22.5A, 11KW, (ANALOG to be 25A
0.82,pf, 1450 rpm connected) for
3 motor, /, 3.Freq meter Exciter
231V/400V, 0-60Hz -one
22/12.7A,7.5KW 4. Voltmeter DC
UPF, 1450rpm 0-250V -one
3, 5. Ammeter DC
Generator,, 0-20A -one
400V,10.8A, 6. Ammeter DC
7.5KVA,0.8pf, 0-10A -one
1500rpm,50c/s. (4point Starter)
Excit.21V Synchroscope-one
DC motor, 220V,
52.5A, 10KW,
1500rpm
DC Generator,
175V, 57A,
10KW,1450rpm
18. Circuit Diagram ( OCC) Panel No 2
100Ω /5A
7A
272Ω /1.7A
0-250V
7A
0-2A
2A
272Ω /1.7A
2A
Note: For Panel number 5 Voltmeter range is 0-300V
Fig 4.1
19. Circuit Diagram ( Critical Speed )
Panel No 2
100Ω /5A
5A
a
272Ω /1.7A 272Ω/1.7A
0-250 V
0-2A
5A A
Note: Generator side FR is 570Ω/1.2A
Fig 4.2 for panel No 5
Add one more double barrel rheostat in series with Ra
(ext) to bring down the motor speed to nearly 300 rpm in
the circuit diagram (Fig 4.2 of Lab manual)
Connect an 0-2 A DC ammeter in generator field circuit
(not shown in manual)
20. Panel Details
Machine Instruments Fuse Supply Expts to be
Panel Rating mounted on Rating conducted
No. Panel 1 3 DC
2 DC motor 1.Voltmeter DC 5A Yes No Yes 4
Generator set 0-250V –one
(coupled) 2.Ammeter DC
Motor-230V, 0-2A -one
28A, 5.5KW,
1450 rpm
Generator-
160V, 29A,
4.65KW
1450rpm
5 DC motor 1.Voltmeter DC 5A Yes No Yes 4
Generator set 0-250V –one
(coupled) 2.Ammeter DC
Motor-220V, 0-2A -one
20.3A,5H.P, (3point starter,
1450 rpm not to be
Gen- 220V, used)
11.8A, 2.6KW
1450rpm
21. Circuit Diagram (Load test on DC Gen. )
Panel No. 6
15A 0-15A
15A
0-2A
0-250V
280Ω /1.8A
272Ω /1.7A
0-250V
15A 15A
Note: For panel No4 take 25A in place of 15A at all points
Fig 5.1
At panel 4 use four point starter (as shown in Fig 3.3.B)
At panel 4 connect a additional loading unit if required
NOTE: Ammeter on source-side of motor not required.
22. Panel Details
Panel Machine Instruments Fuse Supply Expts
No. Rating Mounted on Rating to be
Panel 1 3 DC Condu
cted
4 DC motor gen 1 Voltmeter DC 21A Yes No Yes 5 7
set (coupled) 0-500V –one
Motor-220V, 2. Ammeter DC
21A,3.8KW, 0-20A -two
5.2H.P,1070- 3. Ammeter DC
1450rpm 0-2A -two
Gen-230V, (4 point starter)
20.8A,4.8KW
1450 rpm
6 DC motor gen 1 Voltmeter DC 15A Yes No Yes 5 7
set (identical) 0-500V –one
220V, 12.8A, 2. Ammeter DC
2.2KW, 3 HP, 0-20A -two
1450 rpm 3. Ammeter DC
0-2A -two
(3 point starter)
23. Some Questions Related to every
Experiment
Objective
Instruments Used
Supply [AC (1 or 3 Phase) or DC or Both]
Machines
You are supposed to come prepared for expts,
the circuit diagram given in manual must be
labeled properly
24. Every Batch will submit a lab
report containing the following
1) Aim of the experiment
2) Observation Table
3) Calculations/graph
4) Comments on results & precautions
5) Draw the Neat Labeled Physical
Layout after the each Experiment.
25. Some Rule and Regulation of this Lab
Be punctual
Always wear shoes with rubber sole
Do not wear lose clothes
DO not touch any live terminals or wires
Beware of dynamics of machinery and consciously
keep a distance
Before switching on the supply make sure that there is
NO LOOSE CONNECTION and get your connections
approved by the instructor
After completing the experiment, disconnect the circuit
and keep the wires at the proper place