Answer / guest

IOVW is done to check the adequacy of inter turn and line
end insulation aswell as main insulation to earth and
between windings.
SSVW is done to check the adequacy of main insulation to
earth and between windings.

How to calculate CT ratio for 11KV 1500KVA Transformer 500KVA MD and 1400KVA connected load ? Note:- As per MSEB(Maharastra state electricity Board)

1 Answers  

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Grounding. Dear all at one of my site we checked the amps at the earthing cable to the alternator it was found 125 to 130 A. at the neutal cable in same machine found 146A. in the same plant checked the earthing current on other alternator it was 52A, and neutral 116 A. we are facing problems with our controller and the card was damaged once. can that neutral/GND current be a reason? as there is common grounding for the Alternator,Brkr panel,Transformer?

2 Answers  

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what is real power and reactive power?

3 Answers  

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why induction motor take more current when motor start time and this current take for 1 hours when motor is start.

2 Answers  

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In our factory there is one no. of Series trip HT 6KV OCB. 1. Is it possible to measure CT out put current by 440V Clamp meter? The measurement is required for knowing the exact value of current in CT secondary to set up protection for transformers. 2. plase forward the single line diagram of AMF panel?

1 Answers   HAL,

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in 3phase 50kva dg what is the full load current for single phase laod

6 Answers  

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will there be any problem by recovering slip from single phase induction motors?

0 Answers  

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how can i select the cable ratings

4 Answers  

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can any one suggest websites having study maetrials for the electrical students?

1 Answers  

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what happens if we give 1-ph supply for 3-ph Bridge rectifier...??

2 Answers   Sanelec,

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1. What does mean of "PS" stand for Diff. CT class? 2. What is the formula of KW for 1Phase load inturms of voltag,current & P.F.?

4 Answers   Hero Honda,

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How to convert resistance value at 20 degree to 90 degree?

2 Answers  

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