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STUDYELECTRICAL.COM
StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown THREE-PHASE TRANSFORMER Two Ways of Three Phase Transformer Connection. A three-phase transformer in an electrical substation can be built in two ways. By suitably connecting a bank of three single-phase transformers ; By constructing a three-phase transformer on a common magnetic structure.; In either case, the windings may be connected in four different connection methods. MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
OPEN DELTA (V-V) CONNECTION OF TRANSFORMERS Open Delta Connection (V-V Connection) If one transformer breaks down in a star-star connected system of 3 single-phase transformers in a substation, three-phase power cannot be supplied until the defective transformer has been replaced or repaired.To eliminate this undesirable condition, single-phase transformers are generally connected in Δ-Δ.. In this case, if one transformer breaks down PERCENTAGE IMPEDANCE OF TRANSFORMER AND ITS CALCULATION The percentage impedance of a transformer is the volt drop on full load due to the winding resistance and leakage reactance expressed as a percentage of the rated voltage. It is also the percentage of the normal terminal voltage required to circulate full-load current under short circuit conditions. In other words, the percentage impedance ofa
DIFFERENT TYPES OF RECHARGEABLE BATTERIES EXPLAINED Rechargeable batteries for use with consumer electronic products are of four basic types: Nickel-cadmium (Ni-Cd), Nickel metal hydride (Ni-MH) Lithium-ion (Li-Ion). Lithium polymer (Li-Po) Although these four types of batteries will not look much different from the outside, there are significant differences among them. CHARACTERISTICS OF SEPARATELY EXCITED DC GENERATORS Characteristics of Separately Excited DC Generators. In a separately excited dc generator, the field coils are energized from an independent source. The disadvantage of a separately excited DC generator is the same that we require an external DC source for excitation. But since the output voltage may be controlled more easilyand over a wide
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StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown THREE-PHASE TRANSFORMER Two Ways of Three Phase Transformer Connection. A three-phase transformer in an electrical substation can be built in two ways. By suitably connecting a bank of three single-phase transformers ; By constructing a three-phase transformer on a common magnetic structure.; In either case, the windings may be connected in four different connection methods. MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
OPEN DELTA (V-V) CONNECTION OF TRANSFORMERS Open Delta Connection (V-V Connection) If one transformer breaks down in a star-star connected system of 3 single-phase transformers in a substation, three-phase power cannot be supplied until the defective transformer has been replaced or repaired.To eliminate this undesirable condition, single-phase transformers are generally connected in Δ-Δ.. In this case, if one transformer breaks down PERCENTAGE IMPEDANCE OF TRANSFORMER AND ITS CALCULATION The percentage impedance of a transformer is the volt drop on full load due to the winding resistance and leakage reactance expressed as a percentage of the rated voltage. It is also the percentage of the normal terminal voltage required to circulate full-load current under short circuit conditions. In other words, the percentage impedance ofa
DIFFERENT TYPES OF RECHARGEABLE BATTERIES EXPLAINED Rechargeable batteries for use with consumer electronic products are of four basic types: Nickel-cadmium (Ni-Cd), Nickel metal hydride (Ni-MH) Lithium-ion (Li-Ion). Lithium polymer (Li-Po) Although these four types of batteries will not look much different from the outside, there are significant differences among them. CHARACTERISTICS OF SEPARATELY EXCITED DC GENERATORS Characteristics of Separately Excited DC Generators. In a separately excited dc generator, the field coils are energized from an independent source. The disadvantage of a separately excited DC generator is the same that we require an external DC source for excitation. But since the output voltage may be controlled more easilyand over a wide
ELECTRICAL ENGINEERING BASICS: THE ULTIMATE GUIDE This is the complete guide to learn electrical engineering basics in 2020. The study of electrical engineering involves the analysis of the energy transfer from one form to another or from one point to another. So before beginning the actual study of electrical engineering, it is necessary to discuss the fundamental ideas about the basic FUNDAMENTALS OF ELECTRIC VEHICLES: TECHNOLOGY & ECONOMICS This course provides a deeper understanding of the fundamentals of Electric Vehicles (EVs), especially in the context of India. As part of the course, students will be exposed to technology associated with each element of an EV drive-train; they will also study the economicsof
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BASIC TYPES OF SWITCHGEAR COMPONENTS Basic Types of Switchgear Components. Categories Switchgear, Circuit Breaker, Electrical Machines, Electrical Relays, Instrumentation, Power System, Substation. Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting the electrical circuits andELECTRICAL BUSHINGS
According to IEEE/ANSI Std. an electrical bushing is defined as “an insulating structure, including a through conductor or providing a central passage for such a conductor, with provision for mounting a barrier, conducting or otherwise, for the purpose of insulating the conductor from the barrier and conducting current from one side of the barrier to the other.” VACUUM CIRCUIT BREAKER (VCB) Vacuum offers the highest insulating strength. So it has far superior arc quenching properties than any other medium (oil in oil CB, SF6 in SF6 circuit breaker).. For example, when contacts of a breaker are opened in the vacuum, the interruption occurs at first current zero with dielectric strength between the contacts building up at a rate thousands of times higher than that obtained with AIR BLAST CIRCUIT BREAKER Air blast circuit breaker employs a high-pressure air blast as an arc quenching medium. The construction and working of different types of air blast circuit breakers are explained in this article. This type of circuit breaker has been used earlier for open terminal HV application, for system voltages of 245 kV, and 400 kV up to 765 kV, especially where faster breaker operation was required. POWER TRANSFORMER TESTING METHODS An electrical power transformer has to go through a number of transformer testing procedures for confirming its specifications and performances. In this article, you will learn different types of transformer testing methods, test setup, and their acceptancecriteria.
LIGHTNING ARRESTER
Selection of LA. Here we are selecting an appropriate rating of lightning arresters for the substation. For the protection of substation above 66kV, an arrester of 10kA rating is used. Voltage rating of LA = Line to line voltage × 1.1 × coefficient of earthing. Power frequency spark over voltage = MCB (MINIATURE CIRCUIT BREAKERS) In short, MCB is a device for overload and short circuit protection. They are used in residential & commercial areas. Just like we spend the time to make a thorough check before buying appliances like washing machines or refrigerators, we must alsoSTUDYELECTRICAL.COM
StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
ELECTRICAL ENGINEERING BASICS: THE ULTIMATE GUIDE This is the complete guide to learn electrical engineering basics in 2020. The study of electrical engineering involves the analysis of the energy transfer from one form to another or from one point to another. So before beginning the actual study of electrical engineering, it is necessary to discuss the fundamental ideas about the basic CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. OPEN DELTA (V-V) CONNECTION OF TRANSFORMERS Open Delta Connection (V-V Connection) If one transformer breaks down in a star-star connected system of 3 single-phase transformers in a substation, three-phase power cannot be supplied until the defective transformer has been replaced or repaired.To eliminate this undesirable condition, single-phase transformers are generally connected in Δ-Δ.. In this case, if one transformer breaks down SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
TYPES OF UNDERGROUND CABLES Categories Power System, Cables. In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or three single core cables may be used. For voltages upto 66 kV, 3-core underground cable (i.e., multi-core construction) is preferred due to economic reasons. ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
LIGHTNING ARRESTER
Selection of LA. Here we are selecting an appropriate rating of lightning arresters for the substation. For the protection of substation above 66kV, an arrester of 10kA rating is used. Voltage rating of LA = Line to line voltage × 1.1 × coefficient of earthing. Power frequency spark over voltage =CIRCUIT BREAKERS
26. In a circuit breaker if the insulation resistance between phase terminal and earthed frame is less than the specified limit, the probable cause could be. (D) any of the above. 27. If a circuit breaker does not operate on electrical compound, the probable reason could be. (D) any of the above.STUDYELECTRICAL.COM
StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
ELECTRICAL ENGINEERING BASICS: THE ULTIMATE GUIDE This is the complete guide to learn electrical engineering basics in 2020. The study of electrical engineering involves the analysis of the energy transfer from one form to another or from one point to another. So before beginning the actual study of electrical engineering, it is necessary to discuss the fundamental ideas about the basic CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. OPEN DELTA (V-V) CONNECTION OF TRANSFORMERS Open Delta Connection (V-V Connection) If one transformer breaks down in a star-star connected system of 3 single-phase transformers in a substation, three-phase power cannot be supplied until the defective transformer has been replaced or repaired.To eliminate this undesirable condition, single-phase transformers are generally connected in Δ-Δ.. In this case, if one transformer breaks down SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
TYPES OF UNDERGROUND CABLES Categories Power System, Cables. In practice, different types of underground cables are generally required to deliver 3-phase power. For the purpose, either three-core cable or three single core cables may be used. For voltages upto 66 kV, 3-core underground cable (i.e., multi-core construction) is preferred due to economic reasons. ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
CIRCUIT BREAKERS
26. In a circuit breaker if the insulation resistance between phase terminal and earthed frame is less than the specified limit, the probable cause could be. (D) any of the above. 27. If a circuit breaker does not operate on electrical compound, the probable reason could be. (D) any of the above.LIGHTNING ARRESTER
In large substations, arrestors should be installed at take-off points of the lines and of the terminal apparatus.. Many factors like system voltages, basic impulse insulation level, arrestor rating, station layout, number and arrangement of lines, the position of isolators, the distance between equipment, etc. have to be taken into account in fixing the location of the arrestors. ELECTRICAL ENGINEERING BASICS: THE ULTIMATE GUIDE This is the complete guide to learn electrical engineering basics in 2020. The study of electrical engineering involves the analysis of the energy transfer from one form to another or from one point to another. So before beginning the actual study of electrical engineering, it is necessary to discuss the fundamental ideas about the basicSTUDYELECTRICAL.COM
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THREE-PHASE TRANSFORMER Two Ways of Three Phase Transformer Connection. A three-phase transformer in an electrical substation can be built in two ways. By suitably connecting a bank of three single-phase transformers ; By constructing a three-phase transformer on a common magnetic structure.; In either case, the windings may be connected in four different connection methods. AIR BLAST CIRCUIT BREAKER Air blast circuit breaker employs a high-pressure air blast as an arc quenching medium. The construction and working of different types of air blast circuit breakers are explained in this article. This type of circuit breaker has been used earlier for open terminal HV application, for system voltages of 245 kV, and 400 kV up to 765 kV, especially where faster breaker operation was required. HOW ELECTRIC LOCOMOTIVES (ELECTRIC TRAINS) WORK? An “Electric Locomotive” is a railway vehicle that can move along rails and push or pull a train attached to it using electric power drawn from an external source, usually from overhead cables or a third rail. Electric Locomotives do not have a conventional “engine” in them as we have seen in a diesel locomotive, but use the electricity MOVING IRON INSTRUMENTS Repulsion-type Moving-Iron Instruments. In the repulsion type, there are two vanes inside the coil. One is fixed and the other is movable. These are similarly magnetized when the current flows through the coil and there is a force of repulsion between VACUUM CIRCUIT BREAKER (VCB) Vacuum offers the highest insulating strength. So it has far superior arc quenching properties than any other medium (oil in oil CB, SF6 in SF6 circuit breaker).. For example, when contacts of a breaker are opened in the vacuum, the interruption occurs at first current zero with dielectric strength between the contacts building up at a rate thousands of times higher than that obtained withELECTRICAL BUSHINGS
According to IEEE/ANSI Std. an electrical bushing is defined as “an insulating structure, including a through conductor or providing a central passage for such a conductor, with provision for mounting a barrier, conducting or otherwise, for the purpose of insulating the conductor from the barrier and conducting current from one side of the barrier to the other.” SPLIT PHASE INDUCTION MOTOR The starting torque is 150 to 200 percent of the full load torque with a starting current of 6 to 8 times the full load current.; Due to their low cost, split-phase induction motors are the most popular single-phase motors in the market.; Since the starting winding is made of fine wire, the current density is high and the winding heats up quickly. If the starting period exceeds 5 seconds, the DIFFERENT TYPES OF RECHARGEABLE BATTERIES EXPLAINED Rechargeable batteries for use with consumer electronic products are of four basic types: Nickel-cadmium (Ni-Cd), Nickel metal hydride (Ni-MH) Lithium-ion (Li-Ion). Lithium polymer (Li-Po) Although these four types of batteries will not look much different from the outside, there are significant differences among them.STUDYELECTRICAL.COM
StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
DIFFERENT TYPES OF CAPACITORS AND THEIR USES for energy storage in such applications as strobe lights. as parts of some types of electric motors (induction motor).for power factor correction in AC power distribution systems; Standard capacitors have a fixed value of capacitance, but adjustable capacitors are frequently used in tuned circuits.. Read how charge is stored in a capacitor. CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. PERCENTAGE IMPEDANCE OF TRANSFORMER AND ITS CALCULATIONSEE MORE ONSTUDYELECTRICAL.COM
MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
4 MAJOR TROUBLES IN A DC MOTOR WITH REASONS Reasons for Sparking at brushes. Sparking at brushes in a dc motor may be due to. troubles in brushes. troubles in commutator. troubles in armature. excessive load. Brush troubles may arise due to the insufficient contact surface, too short brush, too little spring tension or wrong brush setting. ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown BASIC TYPES OF SWITCHGEAR COMPONENTS Basic Types of Switchgear Components. Categories Switchgear, Circuit Breaker, Electrical Machines, Electrical Relays, Instrumentation, Power System, Substation. Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting the electrical circuits and TRANSFORMER BUSHING TYPES : RIP BUSHING VS OIP BUSHING Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) Bushing. RIP (Resin Impregnated Paper) Bushing. RIS (Resin Impregnated Synthetic) Bushing.STUDYELECTRICAL.COM
StudyElectrical.Com | Online Electrical Engineering Learning Site. DC Ammeter : Construction, Working and Temperature Compensation. What is DC Ammmeter? A DC ammeter is the instrument used for measuring the direct current (DC) flowing through an electrical circuit and is connected in series to the circuit. Gramme Ring and Drum WoundArmature in
SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE Substation Bus Configuration / Scheme: The Definitive Guide. Categories Power System, Substation, Switchgear. In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific ways to form busconfigurations.
DIFFERENT TYPES OF CAPACITORS AND THEIR USES for energy storage in such applications as strobe lights. as parts of some types of electric motors (induction motor).for power factor correction in AC power distribution systems; Standard capacitors have a fixed value of capacitance, but adjustable capacitors are frequently used in tuned circuits.. Read how charge is stored in a capacitor. CAPACITOR VOLTAGE TRANSFORMER (CVT OR CCVT) Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class voltage into easily measurable values, which are used for metering, protection, and control of high voltage systems.. Additionally, a CVT/CCVT used as coupling capacitors for coupling high-frequency power line carrier signals to the transmission line. PERCENTAGE IMPEDANCE OF TRANSFORMER AND ITS CALCULATIONSEE MORE ONSTUDYELECTRICAL.COM
MEASUREMENT OF THREE PHASE POWER Three wattmeter method is used to measure power in 3 phase, 4-wire circuits. However, this method can also be used in 3 phase, 3 wire delta connected load, where power consumed by each load is required to be determined separately. The figure below shows the three wattmeter connection of 3 phase, 4 wire star connected load. Three WattmeterMethod.
4 MAJOR TROUBLES IN A DC MOTOR WITH REASONS Reasons for Sparking at brushes. Sparking at brushes in a dc motor may be due to. troubles in brushes. troubles in commutator. troubles in armature. excessive load. Brush troubles may arise due to the insufficient contact surface, too short brush, too little spring tension or wrong brush setting. ELECTRIC MOTOR MAINTENANCE : PREVENTIVE, PREDICTIVE AND Predictive maintenance – to ensure that the right kind of maintenance is carried out at the right time. Reactive maintenance – to repair and replace the motor when a failure occurs. Factors which affect the life span of the motor due to lack of maintenance is shown BASIC TYPES OF SWITCHGEAR COMPONENTS Basic Types of Switchgear Components. Categories Switchgear, Circuit Breaker, Electrical Machines, Electrical Relays, Instrumentation, Power System, Substation. Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting the electrical circuits and TRANSFORMER BUSHING TYPES : RIP BUSHING VS OIP BUSHING Transformer bushing types are categorized based on their material, manufacturing, and design mainly into the following types: OIP (Oil-Impregnated Paper) Bushing. RIP (Resin Impregnated Paper) Bushing. RIS (Resin Impregnated Synthetic) Bushing. COURSES - STUDYELECTRICAL.COM Introduction to electrical engineering. Tesla Edison. Students. 20. students. Free. This course is an introduction to electrical engineering preparation that will help you have the best experience with electrical engineering taught on StudyElectrical.Com. You Free.Read More.
DIFFERENT TYPES OF CAPACITORS AND THEIR USES for energy storage in such applications as strobe lights. as parts of some types of electric motors (induction motor).for power factor correction in AC power distribution systems; Standard capacitors have a fixed value of capacitance, but adjustable capacitors are frequently used in tuned circuits.. Read how charge is stored in a capacitor.STUDYELECTRICAL.COM
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HOW ELECTRIC LOCOMOTIVES (ELECTRIC TRAINS) WORK? An “Electric Locomotive” is a railway vehicle that can move along rails and push or pull a train attached to it using electric power drawn from an external source, usually from overhead cables or a third rail. Electric Locomotives do not have a conventional “engine” in them as we have seen in a diesel locomotive, but use the electricity DIFFERENT TYPES OF RECHARGEABLE BATTERIES EXPLAINED Rechargeable batteries for use with consumer electronic products are of four basic types: Nickel-cadmium (Ni-Cd), Nickel metal hydride (Ni-MH) Lithium-ion (Li-Ion). Lithium polymer (Li-Po) Although these four types of batteries will not look much different from the outside, there are significant differences among them. THREE-PHASE TRANSFORMER Two Ways of Three Phase Transformer Connection. A three-phase transformer in an electrical substation can be built in two ways. By suitably connecting a bank of three single-phase transformers ; By constructing a three-phase transformer on a common magnetic structure.; In either case, the windings may be connected in four different connection methods. NEUTRAL GROUNDING (EARTHING) AND EQUIPMENT GROUNDING Neutral Grounding (Earthing) and Equipment Grounding. The term Grounding or Earthing refers to the connecting of a conductor to earth. The neutral points of generator and transformer are deliberately connected to the earth. In 3 phase a.c. systems the earthing is provided at each voltage level. MCB (MINIATURE CIRCUIT BREAKERS) In short, MCB is a device for overload and short circuit protection. They are used in residential & commercial areas. Just like we spend the time to make a thorough check before buying appliances like washing machines or refrigerators, we must also SKIN EFFECT IN WIRES, CABLES AND TRANSMISSION LINES The movement of electrons toward the surface of a wire under high-frequency conditions is called the skin effect. At low frequencies, it does not have a large effect on the conductivity (or resistance) of the wire. However, as the frequency increases, the resistance of the wire may become an influential factor. GFCI (GROUND FAULT CIRCUIT INTERRUPTER) A ground fault circuit interrupter (GFCI or GFI) is an inexpensive electrical switchgear device that can either be installed in your electrical system or built into a power cord to protect you from severe electrical shocks. Electric shocks can cause severe injury or even death. Even exposure to current as low as 100 ma current for only2
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CHARGING AND DISCHARGING A CAPACITOR HOW CHARGE IS STORED IN A DIELECTRIC? TEACH YOURSELF ELECTRICITY AND ELECTRONICS THINGS YOU SHOULD KNOW ABOUT ELECTROMAGNETIC FLOW METERS 3 METHODS OF MAGNETIZING A STEEL BAR HOW TO MAKE A WISE CHOICE OF ELECTRONICS FOR THE HOUSEHOLD?ELECTRICAL MACHINES
GRAMME RING AND DRUM WOUND ARMATURE IN DC MOTORS THREE-PHASE TRANSFORMER – BASICS AND CONNECTION METHODS OPEN DELTA (V-V) CONNECTION OF TRANSFORMERS WHAT IS SWITCHING STATION? | WORKING AND LAYOUT ELECTROMAGNETISM LECTURE NOTES – UNIVERSITY OF CAMBRIDGE ELECTRICAL ENGINEERING BASICS: THE ULTIMATE GUIDE For more articles on Electrical Machines: Click HerePOWER SYSTEM
HOW TO RESCUE A PERSON FROM ELECTRIC SHOCK? SUBSTATION BUS CONFIGURATION / SCHEME: THE DEFINITIVE GUIDE AMPLIDYNE – WORKING AND APPLICATION HOW TO TEST PERCENTAGE IMPEDANCE OF TRANSFORMER? ELECTRICAL SUBSTATION: EQUIPMENT, TYPES, COMPONENTS & FUNCTIONS TRANSFORMER BUSHING TYPES : RIP BUSHING VS OIP BUSHING For more articles on Power System: Click HereELECTRONICS
OPEN LOOP AND CLOSED LOOP CONTROL SYSTEM (4 PRACTICAL EXAMPLESINCLUDED)
MINIATURE CELLS AND BATTERIES – SILVER OXIDE, MERCURY AND LITHIUMCELLS
TYPES OF ELECTRIC CURRENT – STEADY (DC), VARYING & ALTERNATING (AC)CURRENT
CAPACITORS AND CAPACITANCE – WORKING, UNIT, TYPES AND SPECIFICATION CONSTANT CURRENT DRIVER DESIGN BASED ON LM317 WHAT ARE CURRENT, RESISTANCE AND VOLTAGE?SWITCHGEAR
GFCI (GROUND FAULT CIRCUIT INTERRUPTER) – WORKING, TYPES, INSTALLING AND TROUBLESHOOTING BUNDLED CONDUCTORS IN TRANSMISSION LINES CIRCUIT BREAKER DEFINITION, WORKING PRINCIPLE AND ARCING PHENOMENON CURRENT TRANSFORMER (CT) – CONSTRUCTION AND WORKING PRINCIPLE DIFFERENCE BETWEEN DIELECTRIC TESTING & INSULATION RESISTANCEMEASUREMENT
INTRODUCTION TO GAS INSULATED SUBSTATIONS / SWITCHGEARS (GIS) TEACH YOURSELF ELECTRICITY AND ELECTRONICS Ebook to learn electrical and electronics engineering from home.$109 $ 0
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