what will happen if u run induction motor beyond its rated speed
Answer Posted / anirban dasgupta
Rated speed is not synchronous speed. Rated speed is always a few percent less than the synchronous speed. For example if a motor has a synchronous speed of 1500 rpm, its rated speed is 1460 rpm. If it is increased beyond 1500 rpm by external means, the motor will act as an induction generator.
Rated speed : The speed of the motor at rated load.
No load speed : The speed of the motor at no load. (Very Very close to synchronous speed)
Synchronous speed : The speed with which the magnetic flux rotates.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What will be the fault current of any system when its generation is 10% of BASE generation( FUll Load )?Will is 10% or the same as full base calculation?
what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking
what is reactive power?, why its measured in VA ? is it transient behavior of system?
What is bode plot?
What is your acheivements
What is resonant frequency?
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.
Why an ac systems are preferred over dc systems?
how we arrange the hv side with delta connection in case 33/11kv of transformer.
The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?
Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not
Define pole pitch?
block diagram of 2 ups system connected in parallel mode?
what is POTT and PUTT explain?
please send me privious exam's queation papers of section engineer(electrical).