Answer Posted / sunil kumar sinha

Neutral grounding transformer is used to limit earthfault
currentof generator. It also provide Generator earthfault
protection, both alarm and trippingby connecting voltage
relay across the secondary winding of NGT.

What is mean by STUB protection?

1581

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what is difference between speed mode and torque mode in motor?? explain in simple words please.

1155

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What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1022

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y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1532

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How to Design green buildings services? What is the advantage to design green building?

1369

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why does the magnetic balance tests at transformer?

1424

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which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

1510

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Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?

1697

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Why we cant store an ac power. If we coo store in which device we can?

1645

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List some examples of renewable energy?

782

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63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

2300

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explain single phase series motor

1458

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what is the difference between 4pole & 6pole DC Motors & give advantage ?

1434

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What is the meaning of C1, C61, C91 cable

2853

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Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.

638

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