Interested to Buy Any Domain ? << Click Here >> for more details...
What is basic difference between Soft Starters And VFD
drives?
- 19 Answers
- 51179 Views
- IBM, I also Faced
- E-Mail Answers
Answer Posted / mahmoud sawalhi
VFD : The drive consists primarily of two parts, one
which converts AC (50 or 60 Hz) to DC and the
second part which converts the DC back to AC,
but now with a variable frequency of 0-250 Hz.In many
applications a drive is still used for starting and
stopping the motor and for speed regulation
during a normal run .
softstarter: A softstarter has different characteristics
to the other starting methods ,It has thyristors in the
main circuit, and the motor voltage is regulated
with a printed circuit board ( but the frwquency cannot be
cotrolled like in VFD ).
| Is This Answer Correct ? | 4 Yes | 5 No |
Post New Answer View All Answers
can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?
Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?
how meger function
How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.
what is breathing?
I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.
xpression 'document.FrmQF.myemail' [
I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions
Yazaki india pvt ltd interview questions qurey related
What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com
State magnitude criterion.
what is the string efficiency
Why in ESP Positive earthed
