Answer / rajeev goyal

Breaker having the protection feature and contactor doesn't
have.

what is cut out fuse?

1 Answers  

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Under Ground Power cable earthing is required at both end or single end? and reason for the same

3 Answers  

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I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

0 Answers   College School Exams Tests,

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what is cascade speed control device?and how this device control the speed of motors?

0 Answers   ABB,

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Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer be increased up to 25 MVA with respect to its %Impedence by ONAF cooling with same rating..?

2 Answers   Ambuja,

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can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

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in non technical way how can u define POWER FACTOR??

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What is the diameter of electromagnetic field around a 11000/415v transformer ? Dose it affect people who live 3-4 meter beside it?

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at what base you will tell the direction of rotation of dc motors and generators?

0 Answers  

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if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

0 Answers  

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If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

0 Answers  

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Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 Answers  

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