What is master trip relay? How does it work?

1 Answers  

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What is mean CT Saturation? How to calculate?

3 Answers   NetGroup, Tyco,

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The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

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How much allowable difference current between on three phases Dear sir, We have a 1870 KW HT motor, 11 Kv supply,FLA-120A,2870 rpm,2-pole squirrel cage induction Motor.And stator is connected in star connection with Liquid resistance stater to limit the starting current.It has coupled with Centrifugal air compressor.My question is it is loading 73% of FLA taking R-phase 86.7 A, Y-phase-85.4A,B-phase- 78.3A.why the B phase current is that much of difference.Is it allowable, or any one tell me how much allowable current.If any method to calculate.

1 Answers  

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during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation

2 Answers  

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The earth pin of some three pin plugs are seen split. why?

1 Answers  

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why the blede and jow of isoletor demage in substation?explan.

1 Answers  

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why HT line voltage is multiple of 11.eg11kva,33kva,132kva

2 Answers   HP,

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why 120 devided with pole and speed multiplication to determine frequency

1 Answers  

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What are the disadvantages of thermal power plant?

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How much earthing frequency is capable?

0 Answers  

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How do you think they do earthing or grounding in ships and aeroplanes?

9 Answers  

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