what is rating providing of contactor,relay,fuse unit for motor output power

2 Answers  

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Why an ac systems are preferred over dc systems?

0 Answers  

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in an ac series circuit there are 30 bulbs are connected in a serial set.what will happen if one bulb is fused and we removed the bulb and reconnect with the remaining bulbs? (29 bulbs). will the brightness of other bulbs increase or not?

3 Answers  

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What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 Answers  

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difference bewteen reverse current and alternating current

0 Answers   ABB,

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why make protection 85% of winding?

1 Answers  

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What is a signal flow graph?

0 Answers  

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What Is Transformer Impedance ?

6 Answers   Con Edison,

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What effect of supplying stationary generator (800kVA) with 415V AC from 1500kVA transformer?

2 Answers  

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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AC covered area by ton calculation

2 Answers  

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how make to Incident and accident report

1 Answers  

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