Peterson coil is used in (a) DC transmission line. (b) AC transmission line. (c) DC generator. (d) Alternator. Answer ...
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Why Generator & Alternator rated in kVA. Not in kW?
The power √3 VL IL Cos φ delivered by the alternator for the same value of current, depends upon p.f. (Power Factor=Cos φ) of the load. ...
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WHY POWER PLANT CAPACITY RATED IN MW AND NOT IN MVA ?
For the following reasons, a Power plant capacity rating may be expressed in MW instead of MVA. In a Generating station, the p...
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We all feel electrical shocks. Which is really responsible for the shock, voltage or current?
The ultimate cause is the amount of electricity flow in the body, so it can be said to be current. However, there are other fac...
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What is Eddy current?
We have seen that whenever the flux, linking with a closed electric circuit changes, an EMF is induced in the circuit and a current flo...
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MCQ ON TRANSMISSION AND DISTRIBUTION TEST-01
The minimum phase neutral voltage at which Corona occurs is called knee voltage. flash over voltage. critical disruptive vo...
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Why transformers are rated in kVA, not in kW?
Power rating of a transformer or any electric machines indicates the maximum value of voltage and current it can carry without over...
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What are the properties of an ideal transformer?
The efficiency of an ideal transformer is considered as 100% . The properties of an ideal transformer low are 1. no iron losses 2. ...
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Differences between synchronous motor and induction motor?
AC Motors are mainly of two types, one is synchronous motor and other is asynchronous motor. Asynchronous motor is also known as induc...
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What happen when DC supply is given to a transformer?
Transformer work on the principle of mutual induction. It requires alternative source of supply. When a DC supply is given to transfor...
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What are the differences between fuse and circuit breaker?
Fuse 1. It is generally used in low voltage application. 2. It can detect and interrupt the fault. 3. Its work on the principle of...
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MOST KNOWLEDGEABLE ELECTRICAL QUESTIONS ANS ANSWER
• Do you know how to measure the earth resistance? A ctually the Earth resistance is measured using “earth resistance meter”. You might...
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