what is rated speed?

Answer Posted / thirumoorthy

at the time of motor taking normal current(rated current)
the speed of the motor is called rated speed.

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

1786


Please define ampere?

681


What is miller crystal oscillator? Explain its operation?

688


we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1638


What is difference between insulating medium and fault current interruption medium in a switching device.

1113






how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

1496


please tell me how a surge protector work on a DC 48Volt.? please describe briefly.

1380


Explain the working of variable frequency transformer?

660


Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

1929


What are the characteristics of negative feedback?

615


What are the common sources of energy?

635


Is there any Institution for giving M-tech in Electrical engineering for those who r in service? Give the details please.

1578


Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

1689


how to calculate maximum current

1743


Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?

2572