Answer / ganeshkumar

In industrial 3 phase system 1 kva =1.39a
in transfomer give 1 kva =1.33a

what will happen if ac and dc supplies given

0 Answers   APTransco,

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what is the difference between indoor package substation and outdoor

3 Answers  

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when we decide to use soft starter drive or vfd drive in mcc to operate apump?

0 Answers  

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What is the difference between short circuit and overload currents?

14 Answers   IIIT,

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Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 Answers  

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why insulators are colured in brown only?

3 Answers   Transco,

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When a fourth resistor is connected in series with three resistors, the total resistance

1 Answers   ITI,

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Why 3 over-current and 1 earth fault relay is used on primary side of transformer? Why 2 over-current and 1 earth fault relay in used on secondary side of transformer?

1 Answers   Adani,

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Dear Sir, we met a disaster with our 62.5 kva genset, after rewinding we informed by our contract engg that due to return current coming in neutral & impropper earthing this happend. But after all set up & load balance we checked & found again we have about 20 to 32 amp return current on neutral. we have 12 airconditioner + 12 mini fridge on single phase line. Pl suggest any idea to solved this problem

3 Answers  

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what is the practical definition for voltage

3 Answers  

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what is the purpose for open delta connection in potential transformer

2 Answers  

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What is power factor?

3 Answers   L&T,

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