Answer / har

making capacity
breaking capacity
short circuit capacity & time

Answer / prashant pate

current rating,duty (indoor/outdoor),protections needed,
control voltage,switching mechanism,cost,Switching arcs etc.

Answer / srinivasa rao talasila

Making capacity,Breaking capacity,Earth fault and short
circuit,Time and Impulse current rating

How to write a progrramme to turn ON and turn OFF a motor with a single push button in AB?

2 Answers   HCL, Torrent Pharma,

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how we can calculate 2 phase welding transformer rating or total power?

0 Answers  

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what is the basic differnce between ground and earth

3 Answers  

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how dose servo motor works

0 Answers  

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how many synchronous motor are there in any power plant

0 Answers   L&T,

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what is method for testing CT

0 Answers   DCM,

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how braking & making capacity of circuit breaker are calculated?

0 Answers   Bhel,

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sir, my question is that if we start any three phase induction motor with star connection.will be current taken ? please send a formula.

4 Answers   ABB,

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Why field rheostat is kept in minimum position while armature rheostat at maximum position?

0 Answers  

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# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

0 Answers   HPCL,

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Briefly describe three methods that are usually used by electricity suppliers to control voltage levels?

0 Answers  

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Why substation battery room is coulered black?

1 Answers  

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