in VFD when freq is reduce the voltage will reduceor not if
it will reduced upto ...
- 8 Answers
- 7872 Views
- I also Faced
- E-Mail Answers
Answer Posted / arvind
In vfd when frequency is reduce the voltage will increase.
it is difficult to say that upto what level it will
increase or decrease, but speed can be find out by using
the formula.
Ns=120f/p
where f is frequency
p is poles
| Is This Answer Correct ? | 0 Yes | 5 No |
Post New Answer View All Answers
i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.
1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?
hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)
What is the difference between multimeter
Differentiate between low pass, high pass and band pass filter?
The screw thread commonly used for transmission of motion is one of the following types of threads
Why is better to have a minimum ceiling voltage of 250% than 160%?
what are all types of cross section in AC cables?
if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.
Explain about technical and non technical losses in distribution system?
what is the use of expulsition protective gap in 11Kv line.
If you have an earth with pilecap then your resistance is really low. why and how?
How to convert 2 phase to 3 phase electricpower in induction moter?
According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
what is ATS & RING MAIN UNIT in Distribution System?And its Function.
