whether a separate starter is used for a motor while it is
connected to a vvvf panel?
- 2 Answers
- 4278 Views
- I also Faced
- E-Mail Answers
Answer Posted / 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 |
Post New Answer View All Answers
describe the Tranformer testing procedure
List the disadvantages of constant k filters?
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
how to size H.T & L.T Panel ?
plz explain the auot-reclosing circuit in electrical engineeing
What is pole of the system?
How to calculate per unit impedance of transformer?
Mention what are the different colors on wires indicates?
why r we using shell transformer for low voltage
300m long and 30kw inductive loade 3phase supply how many size cable required
Can i replace Earth leakage relay to the faulty Earth Faulty Relay
Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
How to calculate earth wire load by formula
Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?
