Pls explain about vfd control?Where it is used, Give some example?

Pls explain about vfd control?Where it is used, Give some
example?

Question Posted / doss.balasuramanian

3 Answers
6728 Views
Siemens, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Pls explain about vfd control?Where it is used, Give some example?..

Answer / tanmay maheshwari

Variable frequency Drives(vfd) are used for controlling the
speed of AC motors by changing the frequency of power
supply. the advantage of using them is they can be used for
multiple machines having various ratings. The
cycloconverters are used for the conversion purpose.
they are used for ventellating purpose, in pumps etc.

Is This Answer Correct ?

11 Yes

0 No

Pls explain about vfd control?Where it is used, Give some example?..

Answer / anil

Variable frequency Drives(vfd) are used for controlling the
speed of AC motors by changing the frequency of power
supply. the advantage of using them is fast and accurate
and more controlled and relaible device they can be used
for where speed is very important such as CNC ,machin
tools , special purpose conveyer m/c etc.

Is This Answer Correct ?

3 Yes

1 No

Pls explain about vfd control?Where it is used, Give some example?..

Answer / sakkaravarthi soganur arakonam

VFD variable frequency drives and also known as vvvf
variable voltage variable frequency and also konws vsd
variable speed drives,vfd works on v/f ratio means if
frequency increase voltage will increase at rated voltage
if frequency will increases voltage ramainig constant

its used conveyors ,cranes,higer LT motor,

Is This Answer Correct ?

3 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

1 Answers

What is cable gland,why does use for?

5 Answers ABB,

what is the working principle of contactor and conditions of normal open and normal close on it?

3 Answers EEE,

What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 Answers

I WANT TO KNOW LONGFORM OF CT/PT USEDIN POWER PROJECTS OR HT SWITCH YARD.

7 Answers

In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

0 Answers ABB,

ABOUT AC GENARETORS AND MAINTANANCE AND TYPES OF GENARETORS