Answer Posted / rod

AC has a component called VAR's, KVA takes into account
power factor KW does not, most machinery (motors) are rated
in KW or in the old language Horse power not KVA, KVA
relates to the supply.

When and where resistance earthing is used ? How to calculate the time constant for earth fault

1770

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how to calculate compresor capacity?

2141

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What type interview questions ask in Electrical technicians

1741

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Is vtg is controlled by the resistor? if else how much?

2046

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Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

2341

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What is method of calculating the fault current for a MDB, 50KW, 3PH, 415V, 50HZ?

2110

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what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

3281

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plz tel me syllabus and exam date 4 jr executive engg (electrical)

1942

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Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control

2124

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although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

1954

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What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2280

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thyristor controlled APFC panel design parameter?

1747

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what is EIB lighting control system? what is the advantages of this system?

3824

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What is the difference between the relay and the circuit breaker?

1074

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1381

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