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


Please Help Members By Posting Answers For Below Questions

what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

1545


what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

1522


hey guys help me out.....what  are the industrial uses/functions of nozzles in industries 

1150


We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

1207


How does a transformer contribute towards the widespread popularity of ac system over dc?

647






list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

1553


wat is d diffr btw shunt coil and trip coil in VCB?

2346


What is difference between mcb and mccb.

639


how to find out 3 phase complex power in per unit in unbalanced system?

1574


what is consequences of neutral and earth connect?

1656


The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

1639


what is circuit breaker in transfomer and where it used

729


Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.

1682


what is the current setting for different relay protection for transformer .

1756


what about the power of wattmeter at starting and loding?

1651