a 3 phase slip ring induction motor is wound for 4 poles on
stator and 6 poles on rotor; when 3 phase balanced voltage
source at 50 hz is applied to motor it will run at
a)1500rpm b)1000rpm c)750 rpm d)zero rpm
Answer Posted / angel
how do you know the answer because the number of turn
changed with change in the windings on the coil from the
poles if you only know the freguency it's the same aas not
being given any thing because even the value of the
standard voltage has changed so the answer can not be
determine reason being we don't know the flux windings.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Power Factor Correction Panel (Manual & Automatic)
If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V
At full load wat is the motor p.f And at no load will is the motor p.f?
How phase to phase voltage comes 440V.
HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????
wat is d diffr btw shunt coil and trip coil in VCB?
how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
Explain the functioning of diode?
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
In the magnetic fluxes, what is the role of armature reaction?
can any tell me why slope 40% and 80% is calculated in differential protection?
Rules and standards of electrical control wiring ?
what is the difference between earthing and unearth
how can i find ct ratio of meter by seeing name plate of meter and how it should be used in MF calculation if it shows only-/1???
Battery is a voltage source? give one example of current source and why?