Answer / amarjit singh

becase in neutral always unbalanced current flow in 3 phase system if current in amp R=25 A,Y=22 A AND B=20A only 5 amp current flow through neutral thats why in 4 core cable neutral diameter less than phases .try it practically

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

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Why breakers not synchronized when the synchroscope is going in the anticlockwise direction?

2 Answers  

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What are the various reasons for an inductin motor to get heated?

1 Answers   Monnet,

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Define thermal resistance in the context of power amplifier.

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What is the control action?

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what is the maximim current drawn by 1 phase and three phase welding machine

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If 440 V supply has given at the secondary winding of transformer at that time if we apply 11 KV at primery then what will happen???????

4 Answers  

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IN 3 phase induction motor where we give i/p supply & how its working ?

2 Answers  

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Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

0 Answers   DAE,

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HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....

0 Answers   Jindal,

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why series motor cannot be started on no-load?

6 Answers  

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Why neutral wire is heating in symmetric single phase distribution of three phase power supply?

2 Answers  

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