my question is Megger of cable insulation or swgr board
meggerring some values in one day 50mohms,some other day
checking different values(20Mohms).
this tell that some person tell that that values ok.
how to identify the megger value is correct.
pls tell me the answer.
Answers were Sorted based on User's Feedback
Answer / akhil.goyalanager1985
the megger value show the dielectric strength of the
insulation .through megger we conclude that the
deterioration of the insulation. & the value of megger
shoulb be greater than
2*kv+1=Mohm
As per therotical point of view .
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / mukesh thakur
if you are asked to charge a m/c urgently, you can go for dummy charging using 3-phase load through a, say 16A MCB, and if the MCB does't trips then there is no problem you can go for permanent charging.
| Is This Answer Correct ? | 0 Yes | 2 No |
how the B-H loop obtain under the static condition
physical identification of HT & LT panel
why does make gain margin and phase margin on same plot.?
can we use breather in a SEALED power or distribution transfomer instead of injecting nitrogen.
what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
0 Answers National Insurance Company Limited,
can mini-curcuit supply MIL-tested transformer !
Elaborate the term "rotating magnetic field"
Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does
how to connect generators in parallel and what are the required equipment to do so?
what is the purpose of using filters in a protective relaying scheme?
What is the basic difference between AVR and stabilizer?
2 Answers Gujarat Alkalies and Chemicals GACL,
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)