what is meant by VFD ?where its useful ?

Answer Posted / mehul g. c.

vfd id variable frequency drives by that you can change
input frequency to motor or machine .

it is generally used in motor smooth speed control.
like conveyer, lift, electric overhead cranes, special
operational motors.

in that you can get different speed with changing output
frequency.

Is This Answer Correct ?    5 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the basic principle of welding process?

1677


In Generator How suction compression power and exhaust works ?

1453


wat system call?

1536


after how many spot we must chang secondry cable in portable spot welding gun?

1467


What are the types of transformers according to the arrangement of iron cores?

618






how to enter inverter parameter? without manaual?

1553


for 750 kw LT load what will be the ht kva

1250


Why field rheostat is kept in minimum position?

714


What is pd controller?

648


What is the meaning of C1, C61, C91 cable

2840


Differentiate between kirchhoff’s first law and kirchhoff’s second law?

613


What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?

1629


why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

1504


how does a liquid starter reduce the starting currents?

1667


HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

1712