WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES ?
Answer Posted / balaji venkata kumar
Due to the ionization of gas near to the conductors lines
makes the corona effect.Due to corona effect only the sound
is coming on HT lines.Not only sound,conductor lines are
looks like flame blue in colour.The sound is otherwise
called as hissing noise.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
How to calculate the Harmonics losses in terms of cost/unit.
at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.
how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?
can anyone show me how the 3 phase power is supplied to socket outlets?
Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?
Transmission through a short line depends on
Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.
What is the unit of magnetic flux density?
direction of tarbine& genrator
Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?
What is safety of Ht panel
How to minimize the eddy current losses?
at what rate the micro controller increment its timer....is it 1micro seconds or 1/(12*10^6) seconds
What will happend if given Vfd out put to step up transformer
what are the differant std sizes of cable trenches?