Answer / k.prakashchandra

LBB relay is for failure of breaker to trip , and back up protection relay ( usually EM ) is for failure of main relay ( usually electronic )

how to calculate the megger values for motor, cables and transformers?

2 Answers   ITC Infotech,

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What is tan delta point of transformer?

2 Answers  

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how hydrogen or helium is a cooling agent for alternator./ generator of big size.

1 Answers  

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What is the difference between Welding Transformer and Normal Transformer?.

2 Answers   DAE,

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when the motor was star position that is running ok but when the motor was delta it was tripped? why?

5 Answers   Nimbus, SEL Manufacturing,

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how the high voltages are produced?and what it causes?

4 Answers  

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what is the impedance voltage of transformer?

1 Answers   AVI Enterprises, MacLellan,

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how to find the 2500 KVA transformer rated primary and secondary volt and current?

4 Answers  

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what happens if DC earthing and AC earthings are shorted?

1 Answers  

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The error in a single phase energy meter where pressure coil lags behind applied voltage by 88 degrees and pf is 1) upf 2).5lag

1 Answers   GATE,

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if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 Answers  

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DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES

0 Answers  

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