Answer / k.prakashchandra

To reduce the earth fault current in the secondary and for
primary it is of no use .

Answer / k.prakashchandra

NGR connected on primary does not limit the earth fault
current .

Answer / albert kl

NGR USEING FOR MEASURING & PROTECTION FOR TRSNFORMER
(PROTECTION RELAY NEED TIME DELAY FOR SENCEING GROUND
FAULT THATS WAY NGR USEING

1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

0 Answers  

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Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.

0 Answers  

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state application of relay in transmission line?

4 Answers  

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what is surge arresters ?........

7 Answers  

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sir, in a industry present pf is 0.54 pf 25hp power is there its want improve 0.9 pf. which suitable capacity capacitor is suitable please inform me.

2 Answers  

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Explain about retrofitting of machine tool.

0 Answers  

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What is the name and type of power transformer oil?

4 Answers  

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why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

0 Answers  

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why we used stone chips under the transformer area..

2 Answers   SSC,

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why 3 phase induction motor only need starter ? why not other motors need starter ?(like synchronous motor,single phase induction motors & their types) ?

3 Answers  

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why 30kva ups buzzing(hamming) sound?

2 Answers   Madhya Pradesh Electricity Board MPEB,

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how calculated Transformer losses.

0 Answers  

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