Answer / haneef khan gtr

Drives have to use for starting motor smoothly and control
the speed of its( as per requirement)except its it protect
the motor by any fault,with faults codes identification.

Answer / s k deo

To limit Motor Starting current & Save Power consumption.

Answer / vaseekaran

THE VFD DRIVES ARE USED TO CONTROL THE SPEED OF THE MOTOR.THIS CONCEPT OF CONTROL THE SPEED IS BY CONTROL THE FREQUENCY OF THE INCOMING SUPPLY.HENCE THE AC SUPPLY IS HAVING THE FREQUENCY SO IT IS POSSIBLE TO USE THE DRIVES ONLY FOR AC LOADS.

what is pilot wire protection? wer is it using?

1 Answers  

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6 Answers   ABB,

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will three phase energy meter run without one phase

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substation+ plc system

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rrb question

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How does CT can measure the high value DC current?

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Ohms law explain

1 Answers   Hetero,

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