Answer / mayur salunke

Becoz this breaker has a three coils wounded on the one core whenever difference between the 2 coils occurce third coil energiest and open the supply

primery try cell?

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My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

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in the exciter the power is feeded from battry or control or whatever.and we need it in the generators for the stating . do we need it in the shutdown also?i mean the exciter>

2 Answers   Shell,

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For 6600/433 distribution transformer we apply secondary side 433 volts how much voltage in primary side.

2 Answers  

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What is the meaning of CT 40/5, 100/5 or in HT lines 100/1 ????????

3 Answers   Amex,

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what is meant by directional earth fault and non directional earth fault? describe both.

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If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

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if u want to buy a motor than what will be the configuration of that motor?

2 Answers  

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What is transister , thermister , thyrister? what is its function? where this using?

1 Answers  

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why free wheeling diode is connected across inductive load

16 Answers   NTPC, Omaxe, Wipro,

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Draw the circuit of clapp oscillator?

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In a circuit a capacitor (paper capacitor ) was burned due to over voltage in this case can we replace that type cappacitor with other tye capacitor ?

1 Answers  

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