why humming sound occured in HT transmission lines.

Answer Posted / vijay patel

due to high voltage the produced electrical field cause break down the air and moist particle in to the ions and this efeect cause humming sound

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

pls,send the previous year written test questions.

1455


how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?

1521


show the single line diagram of star delta starter with single phase preventer

4112


what is the difference between 4pole & 6pole DC Motors & give advantage ?

1436


what is doubling factor in making current of a breaker?

1573






What are gain margin and phase margin?

843


Why do we use center tap transformer that used with portable tools

1764


How to calculate no of EARTH PIT? Describe the formula as per IS standard?

3195


What are linear and non-linear systems?

656


Why we are going for converter transformers for DC drives application instead of distribution transformer?

1446


Is there a possibility to use such a treshold voltage for the NMOS part of a CMOS circuit that during the switching it will start conducting only after the PMOS part will be already closed, by this eliminating the leakedge current? Please note, I'm not asking about the well bias in standby mode, but about the "antileakedge" measures during normal operation.

1577


Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

2312


What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

1605


What are the weight of 800KV DA,DB and DC type tower ?

2711


how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

1647