1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

1 Answers   Areva,

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What is the difference between voltages or potential difference? And what are they?

0 Answers  

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what is the lightning arrester rating for 3.3kv system voltage

1 Answers  

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Is a induction motor rotate by back emf ? If not , then how it is rotate ?

1 Answers  

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what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers  

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why exciter frequency 150 Hz ?

1 Answers   Siemens,

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what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

0 Answers  

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What does a Bode plot tell you?

0 Answers   GE,

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i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

0 Answers   SCM,

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types of motor starter

5 Answers  

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A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?

0 Answers   Ittiam Systems,

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which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

0 Answers  

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