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Rabert T

As an electrical engineer with 5 years of experience, I focus on transformer and circuit breaker reliability in 110/33-11kV and 33/11kV substations. I am a professional electrical engineer with experience in transformer service and maintenance. I understand electrical principles and have expertise troubleshooting, repairing, and maintaining transformers, circuit breakers, and testing them.
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Electrical Calculators

Phase Current Calculator

What is meant by Phase Current? Phase current is the current that flows through the star (or) delta connection of a three-phase system.  Table of ContentsWhat is meant by Phase Current?What is the Phase of a Current?Phase Current FormulaSolved ExampleWhat is the difference between Line Current &...
Electrical Interview

Power Electronics Interview Questions

1). What is a Power Amplifier? A power amplifier amplifies weak signal until it has enough power to drive an output device, such as a loudspeaker. 2). What are the Characteristics of a Power Amplifier? Impedance matching to provide maximum power to load. Power transistors are required to tolerate...
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Protection

What is a Magnetic Contactor?

Table of ContentsWhat is a Magnetic Contactor?Working Principle of a Magnetic ContactorConstruction of the Magnetic...
Transmission

Advantages of HVDC transmission

Table of ContentsWhat is HVDC Transmission?Advantages of HVDC1). Low Transmission Cost2). Reduced Power LossesAbsence...
Generations

Classification of Steam Turbines

Table of ContentsWhat is a steam turbine?Steam turbine components1). Rotor and Blades2). Impulse and...
Protection

Power Factor

Table of ContentsWhat is Power Factor?Power Factor UnitCalculation of the power factorSingle phase circuit...
Basic Electrical

Power Efficiency

Table of ContentsWhat is meant by Power Efficiency?The power rating of the device or...
Protection

Grounding Conductor

What is meant by grounding conductor? Table of ContentsWhat is meant by grounding conductor?1). Equipment...
Drives

Working Principle of Variable Frequency Drive (VFD)

Table of ContentsWhat is meant by Variable Frequency Drive (VFD)?Basic requirements to use VFDWhat...
Transformers

Transformer Tap Changing Working Principle

Table of ContentsWhat is a Transformer?What is Tap Changer?System voltage management using Tap ChangerDifferent...
Protection

Advantages and Disadvantages of Fuse in an Electrical Circuit

What is a fuse? Fuse protects electrical devices from overloads and short circuits. It interrupts...
Basic Electrical

Units of Electrical Measurement

Table of ContentsInternational System of Units (SI) Metric SystemWatts and kilowatts measure electricityElectricity consumption...
Basic Electrical

Types of Electrical Wiring

Table of ContentsWhat is meant by electrical wiring?Colour Code for Electric WiresMethods of Taking...
Basic Electrical

Why Three-phase Voltage is 440 Volts?

Table of ContentsWhat is Single Phase?What is Three Phase?Why is 440V used for Three...
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Electrical Calculators

Phase Current Calculator

What is meant by Phase Current? Phase current is the current that flows through the...
Electrical Interview

Power Electronics Interview Questions

1). What is a Power Amplifier? A power amplifier amplifies weak signal until it has...
Transformers

Vector Group of Transformer

The Vector Group of a transformer is an essential parameter that determines the phase...
Basic Electrical

Switch Types & their Working Principle

Table of ContentsWhat is Switch?Characteristics of SwitchesMechanical SwitchesTypes of Mechanical Switches1). SPST - Single...
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