Answer / rama moorthi m

When varying the load,The reactive power also will vary.so
the load current(reactive power current) will change.The
automatic condition, the Pf relay seance the current and
switch on the capacitor with respect to that reactive power
current variation.

explain the Trip supervision circuit

0 Answers   NCC,

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how to work current transformer and potential transformer

1 Answers   Adhunik,

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I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.

1 Answers  

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For backup batteries connection,which method is best? series or parallel ?  

3 Answers   ABC,

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draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it

0 Answers  

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Give the two basic speed control of DC shunt motor.

4 Answers  

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WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN DISTRIBUTION LINES?

26 Answers   APTransco, BARC,

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Can anybody tell abt concrete encased earthing or grounding?

0 Answers  

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What is current & voltage ? Voltage perform at any load without current or not?

0 Answers  

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how to calculate the battery Ah? what is the formula.

10 Answers   Cushman Wakefield,

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without any theoretical calculations, can u approximately tell the current rating of a motor(above 30hp)working at 415VAC.

7 Answers  

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What is the make of breakers, transformers, generators? What are their capacities and ratings?

1 Answers  

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