How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

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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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what is formula in determining the size of Circuit Breaker for transformer with the following specifications. 7 units of 1600 volts (primary) and 400 volts (secondary). Both Primary and Secondary will have a circuit breaker which is SF6. What should be the Switchgear Main Breaker Size anf the sizes of each brances Circuit Breaker for Primary.

1 Answers   ABB,

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If we increase frequency in transmission line in lieu of voltage what will happen?

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IN dc capacitive reactance is??

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What are the different circuits in thermal power plant?

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What is meant by Guard relay ?

2 Answers  

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What is different between resistance grounding system and resistance earthing system?

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why battery set is required for D.G.set?

7 Answers  

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Is there any difference between circuit breakers and isolators

7 Answers  

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How will you calaculate the Ct ratio based on connected load 500KVA,and 11KV supply ?

3 Answers  

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1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

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