Answer Posted / ashok
To produce any twisting force or rotating force, there must
be a two currents at diff p.f. So to produce two diff
currents uses capacitor (for current displacement)and is
called two phases.
Motor produces two phases for rotating by using internal
capacitor.
In single phase motor doesn't rotate at all.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
Why the output of OP-AMP is always less than Vcc?
Best way to measure the Soil resistance of rocky soil, three probe method and four probe method
Is it possible to connect a safety device in to parallel?
what is high - pot test. what's its use?????
1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?
how does high earth to neutral voltage affects electronic circuit?
is there any chart showing the suitable cable size according to AMP and length ? for three phase motors
What is the approximate value of stacking factor?
what is the difference between 50 hz freq. and 60 hz freq.? which is better and economic in them ?
What is superposition theorem?
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
what is the size of ht cable of 33kv ht line and transformers ratings are 1 Mva and 5mva.please send formula also.
Define the term Capacitance and Inductance?