Synchrounous motor is three phase motor,but its not self
starting .why?
- 22 Answers
- 50020 Views
- Delta Beverages, KI, L&T, NTC, TVS, Wipro, I also Faced
- E-Mail Answers
Answer Posted / saravana babu
let assume the stator field as Ns and Ss..the rotor field as
Nr and Sr..when the given to supply to stator windings,which
cause rmf may occur..assume Ns is repel Nr..as the direction
of rotor is clock wise..(in first half cycle)..in next cycle
Ss is attract Nr(anti clk wise direction)..so the rotor cant
able to rotate in same direction.... so having only low
torque ...so that provides resudual magnetism at
innitialy..(ie dc excitation like alternator)
| Is This Answer Correct ? | 33 Yes | 11 No |
Post New Answer View All Answers
what is counter poise conductors
what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?
what is formula to cal cute earth pit numbers and size of earth strip used in earthing?
if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please
Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
HOW TO TEST A LIGHTENING ARREST ER ?
What is Long rod insulator and it's applications..? merits over the disc insulator ..?
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
What are the different sign conventions used in electric circuits?
what is ground fault in ACB?
Which capacitor is preferred for high voltage and frequency?
advantage and disadvantage of team work?
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.
