Answer / ramachandran_pb

over current protection
earth fault protection

Answer / vipin joshi

1.. low lube oil pressure (2.5 to 7.5 kg/cm square)
2..high coolant water temperature (95 Celsius)
3.. low coolant level 80 %
4.. overspeed (1480 to 1580)

What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

0 Answers   K-Electric Limited,

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What is Nominal voltage?

3 Answers   Bhel, Equate,

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what is transformer

63 Answers   ABB, Advance Power Controls, CERC, Electrical, Electrical Supervisor Competency Certificate, ETA, IBM, Jindal,

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power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 Answers  

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Tell me in detail about c.t. And p.t. ?

0 Answers  

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How to do maint. Of busbar.

1 Answers   KSEB, L&T, Siemens,

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does not the circulating current in a transformer affect the flux distribution in the transformer core

1 Answers  

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what is doid

0 Answers  

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is it true there's a big difference in using Cummins or Denyo...especially power output or leakage

0 Answers  

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what is eee?

8 Answers   TATA,

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which type of amplifiers are used in multimete?

0 Answers   NTPC,

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what is difference between c-power & u-power air circuit breaker?

2 Answers   Areva, IIT, Marine Electricals,

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