Write down the design procedure of commutaj.

0 Answers  

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Leading power factor means what? what is the power factor value while in power factor is leading? is power factor greater than one? In some cases i heard pf 0.8 leading then what about 0.8 lagging?

1 Answers   Rockfort Engineering,

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why motor rating in KW?

2 Answers  

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what is the formula for backup time of online ups?

1 Answers  

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in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

1 Answers  

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what is a motor

5 Answers   Eskom,

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What are the protections to be used for Generator?

5 Answers  

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what is neutral voltage

3 Answers   Power Grid,

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what use marshalling kishock in power transformer?

2 Answers  

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what is the difference between induction and synchronous motor?explain in simple words?why 3 phase motor is given preference over single phase motor.

10 Answers  

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What is mean by hot and cold loop testing? What is the difference between them?

0 Answers  

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what size of copper busbar use for 11kv 630A

3 Answers   ABB,

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