Answer / ravinder kumar

when the CT ratio & Meter CT Ratio is different then we have to multiply the meter reading by a factor i.e. called MF to find exact value.
MF= (field CTR*field PTR)/(meter CTR*meter PTR)

What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

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How can we measure MVAR of a 3 phase transformer.....???

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what is the main purpose of line PT and bus PT?

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how much UPS neutral erath leakage current.

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what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

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For example, if I use Star delta transformer for distribution, Can I Connect 230 V lighting load bewteen secondary phase & primary neutarl. What will be the effect, if I connect in this manner?

2 Answers  

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