what type of oil is used in transformers? a)conduting b) insulating

25 Answers   ABB, LGS,

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if i am in front of transmission line how to know that current direction without any equipment

0 Answers  

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What is the difference between surge and impulse?

4 Answers  

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What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?

2 Answers  

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What is CCM in Electrical ? where can we use this material?

0 Answers  

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What kind of preventive maintenance are there for AC generator?

1 Answers   Gulf,

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what is magnetizing current test in power transformer

0 Answers   ABB,

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I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 Answers  

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why we used star delta starter for above 5hp motors

2 Answers  

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what is the use of 6.6kV/6.6kV Transformer???

3 Answers  

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Define resonant frequency?

0 Answers  

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why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ.

1 Answers   Elcom International, HCL, NTPC, OMC,

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