Answer Posted / dk gnfc

When neutral open,line voltage flowing in phase,so overvolage occurs in all phases,and if REF provided,it will trip the transformer as protection against neutral opened from earth

please explain how to do 'pole drop test' on generator?

2953

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while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

2912

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how to determine Sq.mm size of finolex power cables.

2046

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In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

2033

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What is the function of NER and NET?

2495

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How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

2073

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Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

1452

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hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

2019

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what is the practical application of full adder circuit?

1898

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What type of DC motor would you see for a lift?

1130

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What test must you do before powering up a circuit that you have been working on?

1910

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what is earth pit , how we can measured it, what earth rods reference

2659

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cc of scorpio?

2324

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what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

2545

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Why do we need interlocking in a HT metering or Ring main unit switchgear?

2090

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