in VFD when freq is reduce the voltage will reduceor not if
it will reduced upto ...
Answer Posted / lallan chodhu
simply v proportional to 4.44 phi f n
v n f variable phi n 4.44etc constant.to maintain constant flux whole ratio v/f is changed agar sirf v badhaoge f kam hoga n vice versa.toh vfd ek prakar se v/f contriol hai
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable
State thevenin’s theorem?
when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//
Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!
What is the difference between Delta & Wye windings?
do you have some of interview Questions in power and genrator section in general whith answers
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
what type of earthing do for dry fissure rock?
Salient pole alternator is more stable, why?
Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.
how to check regenerative load in drived motor
what is the use of vcb & isolator in substation?
does a DG set has low fault level as compared to that of a transformer.If yes then why.
how to calculate percentage impedence at 75 deg C at normal tap
What do you mean by power transformer?