How many types of lightings are there

2 Answers   ABB, Met Trade,

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what is a reactive power? what is the relation with power factor?

0 Answers  

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What is maximum rating of transformer ?

2 Answers  

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what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

0 Answers  

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Pl. brief about break-down maintenance of machine tool.

0 Answers  

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What is the rating of your substation and what are the different types of substations?

5 Answers   Bhel, NTPC, UPPCL,

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What is Harmonic affects in power system. what is unit of harmonics and how to measure it. how much value should be in power system.

1 Answers  

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how we protect the motor & what are the components required for that ?

2 Answers  

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in a diesel generator is there any relation between AVR to fule system?

2 Answers  

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HOW TO CONNECT THREE PHASE OVER LOAD RELAY FOR SINGLE PHASE

2 Answers   Quest,

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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what is the formula to calculate the distance between one phase to another phase in single phase line and 3 phase line for different volt for example ; 33kv, 11kv ,22kv,230v

1 Answers   Suzlon,

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