Interested to Buy Any Domain ? << Click Here >> for more details...
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
- 13 Answers
- 26070 Views
- Essar, PSPCL, PSTCL, I also Faced
- E-Mail Answers
Answer Posted / a.sakthi
answer b) 1000 rpm is correct. because 120f/p =N.here N is
the speed of the motor. hence f and p is the input frequency
and no of poles on the stator or rotor respectively
(depending upon which one is the rotating portion of the
motor) so and so, in general rotor is rotating so the answer
b) is correct. if the stator is rotating, answer b) is correct.
thank you....
| Is This Answer Correct ? | 7 Yes | 2 No |
Post New Answer View All Answers
what are inherent currents?
DG SET BLOCK DIGRAM
Explain in brief description about the operation of DG sets.
Define phase lag and phase lead?
WHY BREAKER ARE USED IN SUBSTATIONS?
HOW DO I CALCULATE THE SETTINGS FOR THE DIFFERENTIAL PROTECTION OF A 12kV/6.6kV, 6MVA,DYN11 XMER WITH PRIMARY SIDE CTR 400/1 AND SEC SIDE CTR 600/1?
WTA used cb?
how point on wave controller works.
What is meant by reverse polarity and how it can be fixed?
what happen as when voltage drop(or may decrease) ? in case of atomic base theory?
i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.
What are the parts in a inverter?
Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
how much excitation voltage required to generate 1mw power?
