Does induction motor start with dc power supply????
- 4 Answers
- 5843 Views
- Essar, I also Faced
- E-Mail Answers
Answer Posted / soumen koley
to rotate an induction motor a rotating magnetic field is
needed, which is developed by 3-phase ac supply. but the dc
supply develop a stationary magnetic field in the air gap
which can't able to induce emf in the rotor conductor at
stand still so there will be no torque. so an induction
motor can only start by ac supply.
| Is This Answer Correct ? | 25 Yes | 1 No |
Post New Answer View All Answers
explain types of electric welding and its applications
why we cannot protect 100% winding of an alternator by using differential protection?
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
What is a commutator?
How efficiency of thermal plant can be improved?
what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks
is it value of power factor is more than unit. whats effects in the source supply
Generator,motor and alternator Working principal Please explain easily
WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT
What are the Return ( Monthly / quarterly/ Annual submitted to Electical Inspector for an establishment (Factory in Maharashtra-- Small scale category having seperate HT line of 22KV ) as per Maharashtra Electricity Act
Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job
how can check the resistance of battery contact?
IF DISTANCE IS 100METERS B/W AMP.METER AND CURRENT TRANSFORMER WHAT WILL BE AFFECT IN ACCURACY .METER CAN SHOWING ACCURATE CURRENT OR NOT IF NOT WHAT CAN I DO TO GET 100% ACCURACY.
What is the difference between cylindrical-type and sandwich-type winding?
What is the height of DA, DAL, DB, DC & DDE tower?
