whether a separate starter is used for a motor while it is
connected to a vvvf panel?
Answers were Sorted based on User's Feedback
Seperate Starter is not required as the VVVF Panel will
take care of starting the motor with its soft start feature.
ofcourse, in some applications, seperate starter is used to
provide the bypass system.since in case of vvvf panel
failure the motor can be operated through the starter.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / amol
In the V/F control technique the voltage to frequency ratio
is maintained constant. Torque is maintained constant at
rated frequencies and rated speeds .
Seperate Starter is not required as the VVVF Panel will
take care of starting the motor with its soft start feature.
ofcourse, in some applications, seperate starter is used to
provide the bypass system.since in case of vvvf panel
failure the motor can be operated through the starter
Is This Answer Correct ? | 1 Yes | 0 No |
Do these factors (settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot)) are the part of first order, second order, higher order, linear, non-linear, open-loop, closed-loop, homogeneous & non-homogeneous systems ?
Natural frequency of a system gives... 1) nature of transient 2) overshoot 3) oscillations 4) speed of response
how oti and wti connections are different from each other?
wap to print prime number from 1 to 100 using c++
Is there any relation between transformer capacity and its bdv?
What is the formula for calculating Transformer Losses & Efficiency. I want to compare the Transformer efficiency at different loading condition.
6 Answers Rays Power Experts, Techser,
is it necessary to earth the rmu before cutting off the transformer winding?if yes why?
What is the main purpose of c.f.b.c.boiler
Why does the rotor rotate?
how to decide choke rating for drive?
11 kV line deraction check by an Engineer.
How to calculate cable size in HT AND LT