what is the difference beteen differential protection and over current protection of an alternator

2 Answers   GVK,

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what is RR number Abbreviation energy meter

2 Answers   Trimax,

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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage.

1 Answers   FGI, OPS,

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How do you select the pickup value of the relay?

0 Answers  

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why cont we short earth and N.......?

3 Answers  

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what r the safety measures in UPS ? explain all?

0 Answers   Wipro,

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What is the operating range(tolerance) of voltage and frequency of grid supply in india?

10 Answers   BARC,

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What is the difference between Type test and Routine test?

10 Answers  

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what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 Answers  

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Which Machine u will prefer to use at a place where flammable gases are coming out & why ?

4 Answers   NTPC,

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what is appearent power?

3 Answers  

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How to decide the size of the capacitor for a single phase induction motor say 2 HP ??

0 Answers  

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