Answer / ajit m

Just find out firmware manual of VFD for programming

when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

0 Answers  

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What is effect of over voltage and under voltage on ACB

0 Answers   EFS,

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what r the types of detectors? state the location these detectors?

3 Answers  

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can we use metering current transformer as protection current transformer if not why? & if yes why?

5 Answers   Wartsila,

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Is there any reason that a vertical motor can not be mounted horizontally ? I happen to have one and would like to use it horizontally to save money by not buying a new horizontal motor.

1 Answers  

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

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if i have to use 14 kw what size of power cable can i use and size of earth cable also.

2 Answers  

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which %age if losses increases when frequency is increased to 25%

4 Answers   Maihar Cement, Siemens,

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what is the use of providing earthing for tanks? i know for lightning we use earthing ? Here one of my ONGC project there is no need of lightning protection and there is no power connection near by tank in that situation also ONGC asking earthing for tanks but we didn't understanding why they asking earthing? is anybody tell exact answer?

4 Answers  

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

0 Answers  

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why we use DO Fuse in H.T. Line ? What is the purpose of DO Fuse

4 Answers  

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WHAT IS A LINE CURRENT AND PHASE CURRENT

3 Answers  

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