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Tranmission and Distribution
Why are we employing star type transformer at transmission end and delta type transformer at receiving end?
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Potentiometer and Rheostat
What is difference between potentiometer and rheostat?
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Traction System
What do you mean by traction system, What type of traction system is used in electric train.
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Motor Frame Size
What is meaning of "Motor Frame Size"? What is use to determine the motor H.P?
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Ceiling Fan Rotation
The ceiling fan rotates in anticlockwise direction, Why?
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LPF and AC Wattmeter
What is the constructional diffrence between LPF wattmeter and ordinary AC wattmeter?
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Generator Breakdown
What are the major causes of a generator breakdown?
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DC Circuit in AC MCB
Does using a AC MCB in a DC circuit affect the tripping time or the perfromance?
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Brush Alternator
What is a brush alternator?What is a brushless alternator?What is the difference between brush and brushless alternator?Which is better between brush and brushless alternator?
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Purpose of Earthing
What purpose does an earth serve on a generator terminals if the generator was started accidentally.This a true incident when the generator was started it blew the earth wire because the terminals were shorted and then earthed to ground. What is the point of earthing if it cannot save the generator or the personnel.
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Power Factor
Why the Voltage rises when Leading Power Factor is occurs?
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Earthing Resistance
What is Earthing Resistance?
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AC & DC System Components
In DC only resistive component exists where as in AC system resistive, capacitive & inductive component exists. Why its so?
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Synchronous Generator
How and when synchronous generator acts as a synchronous condenser?
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Alternator
Why alternator is operated at lagging power factor?
How alternator responses with changing the load? -
Induction Generator
Is it possible to run the induction generator only with the inductive load (without the use of capacitors for supplying the reactive power)? Explain
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Voltmeter Measurement
If we connect a voltmeter between earth and ground wire, how much it will measure?
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Short Circuit Calculation
How short circuit calculation done at secondary side of transformer?
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LT Panels
What are the various types of LT panels? Name them.
Electrical Engineering Interview Questions
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