what is the difference betn earthed and unearthed cables which is commanly used why?

2 Answers   Bhel, Power Grid,

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difference between alternator & GENERATOR

4 Answers  

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why are transformer rating in MVA

2 Answers   Suzlon,

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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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Differance between power circuit and control circuit

3 Answers  

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The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

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why do we use 25kv supply for traction purpose

1 Answers  

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what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

0 Answers  

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what is real and reactive power?

2 Answers  

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what is the diffrence between R Y B phase and why it is called RYB

5 Answers  

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What is 100% protection of generator? Why 95% protection is used not 100%?

9 Answers   NTPC,

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what is RMU ?

26 Answers   MacLellan, Shalaka Infra Tech,

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