pf of synchronius motor is unity, is it axact(=one) value. ?
Answer Posted / sidharth
It depends on condition in which you are operating it.
If you are operating it over excited and on no load condition then its power factor is greater than 1(this is used to used to improve power factor).
If it is operating in under excited condition then power factor is less than 1.(it will supply reactive power).
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what are the preventive maintanance actions taken for air circuit breaker? please answer me
how can i find cable size from current rating?
What is class ab operation?
What is the formuala to calculate the rating of motor protection circuit breaker
Why saturation region slowly shifted in the left side?
How to work E.L.C.B and how to connect in circuit.
How to measure current and voltage in an ELV circuit
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
what may the reason for vector shift in a generator?
PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
i need previous entrence exam papers of nhpc.
When MICC cables used ?
what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
how many joints are allowed in underground HT cable of 1 KM