Answer / vikram ahuja

A MacAdam ellips is the region on a chromaticity diagram which contain all colors which are indistinguishable, to the average human eye,from the color at center of the ellips.

what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

0 Answers   ME,

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why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

3 Answers   Bhel, ISMT,

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CAN ANYBODY PLEASE TELL ME HOW TO DESIGN A SERIES REACTOR FOR LIMITING SHORT CIRCUIT FAULT CURRENT??

0 Answers  

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i want to model paper for section engg.

0 Answers   Infosys, RRB,

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we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

3 Answers   CFCL,

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1 kva how much amps? How to calculate ?

2 Answers   L&T,

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rating of ups??

1 Answers  

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Define damping ratio.

0 Answers  

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testing of transformer

1 Answers   Vijai Electricals,

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what is ment by doublefield revolving theory?

2 Answers  

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In our homes we place the 5Amps fuse...now in our house only takes 5Amps for all normal conditions ha???

2 Answers   Areva, Bajaj, MSP,

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if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 Answers  

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