Why NGR is provided in sub station?

4 Answers   MMS,

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What is CRT (Contact Resistance Test) for Isolators or Dis- connector Switches? Why we performed it & whats the Testing procedure.

1 Answers   Siemens,

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first 3 men were there .again 3 came.total how much?

11 Answers   Wipro,

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what is the diff.between neutral and earth?

4 Answers  

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what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

0 Answers   Aditya Birla,

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Which circuit breaker arc quenching time is low AC or DC breaker?

1 Answers   Deltech,

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Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

0 Answers   Kraft Heinz,

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We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?

2 Answers   Suzlon,

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What is the power ratio between power in Star and Delta circuit?

11 Answers   ST Micro,

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In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

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What are the minimum acceptable insulation resistances of insulation of underground cable suitable for 0.440kV,11kV, 33kV and 66kV?

2 Answers  

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how determine base of given number like 302/20=12.1

2 Answers  

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