Answer Posted / neeraj pandey

Generally the Motors(approx 80% AC Motors) are 3 Phase
operated and having three terminals for taking supply. so
they required only three core cable.
Thats why there is no need of extra core in cable.

what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

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hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com

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Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

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explain different losses in a transformer.

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Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

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What is PQA???Applications........

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where is core-type and shell-type construction suitable for transformers ?

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A d.c. Shunt motor is found suitable to drive fans because they require?

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