Interested to Buy Any Domain ? << Click Here >> for more details...
Why a Transformer Noise during its running condition ??
- 11 Answers
- 22866 Views
- NTPC, UPPCL, I also Faced
- E-Mail Answers
Answer Posted / ajay rastogi
magnetostriction and we know that transformer core is
consist of ferrite material and this change in length
causes humming during its running condition
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.
What is the difference between amorphous core transformer and CRGO core transformer?.
any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?
why and where we use early make & late break contacts in protection?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
If symmetrical fault occurs at the terminal of a synchronous motor then how the motor will act...explain it..
The moisture in air will condense at
we have consol make 3 phase servo stabilizer for cnc m/c. while installing the earth neutral voltage is 1.7 volts at stbilizer off condition and when stabilizer get on en voltage reaches 4.8 volts (new earthing is done and neutral is helthy condition all phase to neutral volts 440,442,441 v)why this happen.solution for cause.
What is Diff btw Fire Alarm & VESDA System???
1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?
in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.
how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.
What is the previous name of Cox's Bazar
During FEED, you will have all the information with regards to cable. How will you calculate the MTO for MV and LV Cables? what are your considerations?
how to calculate the change over time for star delta starter for different KW motor?
