Answer / mrudang

in HV CT the secondary voltage should be around Vk>400v

because in differential protection , we have to maintain
relay input of 1 Amp or 5 Amp

what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

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What is the function of auadag in a cro?

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Moving Iron instruments are applicable with a) DC only b) AC only c) DC & AC

14 Answers   Bhel, Engineers India, Engineers India Limited,

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Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

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Please specify the parts of VCB&ACB

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how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)

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The purpose of a choke is to provide a ?

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What are the advantages of instrument transformer?

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what does the transformer connection symbol YNaod1 mean ?

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How is the percentage impedence of a transformer fixed at design stage???

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

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I have current, kva How can calculate kv?

3 Answers  

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