Interested to Buy Any Domain ? << Click Here >> for more details...
at the time of starting back emf of a motor is zero.so how can
it will start to run??
- 1 Answers
- 3820 Views
- I also Faced
- E-Mail Answers
Answer Posted / b sumanth kumar
Due to the property of residual magnetism.According to
residual magnetism property when motor is turned off then
the magnetism property of the poles do not lost some what
of the magnetic property will be present by this motor can
produce its back emf at the time of starting
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Can RCD's used to protect the VVVF drive if not why.
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.
CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415
What are books to be referred for KPTCL exam?
how can you size an automatic voltage regulator?
what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.
Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp
what do you mean by plant earthing system.
I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?
Why the output of OP-AMP is always less than Vcc?
How the annunciator works ? How to do its wiring
How is the gain affected by the introduction of feedback in a control system.
