Answer Posted / hari hajare
Crawling in an induction motor is caused by low supply
voltage, high loads, development of harmonics in the rotor,
possibly even design faults. Crawling can be caused when a
small change in load results in an angular displacement of
the rotor field with respect to the stator field a bit
similar to the synchronous motor operation. The effects of
crawling can be reduced by avoiding certain combinations of
stator and rotor slots or altering the position of rotor
bars(skewing).
| Is This Answer Correct ? | 12 Yes | 5 No |
Post New Answer View All Answers
When we need up only in o/p 440v, so why we use directly in 11kva in input?
how to calculate the loss tangent of electrical cables
what is the difference between droop mode and ischnorous mode in thermal powerplant?
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
why effective resistance should be more than static resistance in transmission line?
i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection
How is the percentage impedence of a transformer fixed at design stage???
which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing
Which do you think is the most significant cause of energy loss in a factory?
Why do we perform an open-circuit test and short-circuit test on the transformer?
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.
Use of switch mode power converter in real-time basis?
What was your role in the silicon evaluation/product ramp? What tools did you use?
pre arcing time of ehv breaker
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.