Answer / amrish

VFD Means Variable Frequency Device,,, so as same as name we can control the speed of motor with the help of VFD by controlling V/Hz parameter.

what is skin effect?

6 Answers   MPSEB,

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What happen when change order of CT in GIS feeder?

0 Answers  

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suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current ?

9 Answers  

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Which circuit breaker arc quenching time is low AC or DC breaker?

1 Answers   Deltech,

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at the time of starting back emf of a motor is zero.so how can it will start to run??

1 Answers  

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What is your favorite aspect of the engineering field?

1 Answers  

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Why celling fan rotates in anticlockwise direction and table fan in clockwise direction ? Give technical reason.

5 Answers  

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what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

0 Answers   Aditya Birla,

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what is meaning of Power factor?????????

3 Answers  

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how to check regenerative load in drived motor

0 Answers   Hindustan Unilever Limited, NHPC,

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How it can worked plc based electrical system And which type of software using.

0 Answers   ITC Infotech,

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how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

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