define reactive power?

3 Answers   Alstom, TATA, TCS,

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How to do maintenance of transformer feeder.

0 Answers   KSEB, L&T, Siemens,

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suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current , the rating of motor is 1HP ?

5 Answers  

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what is physical distance of isolator to VCB in 33/11kv sub stations

0 Answers   Enercon,

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What is the maxvoltage drop allowed at any healthy joint at full load ?

1 Answers   Kirloskar, Seyadu,

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Can anyone send details regarding motor protection relays ? their manuals please ?

1 Answers  

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how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

0 Answers  

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How to Prepare preventive maintenance shedule of machine tool.

0 Answers   Concast,

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a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers instead of Vacuum circuit breakers.

3 Answers  

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what is the difference b/w neutral and earth?what is the need of earthing and what are the different methods for earthing?

4 Answers   NTPC,

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How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

0 Answers  

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