Why 5kv megger used to megger 6.6kv motor or 33kv
transformer why not 500v?
- 2 Answers
- 7789 Views
- I also Faced
- E-Mail Answers
Answer Posted / sanjeet kumar singh
Megger is used to check whether the insulation is ready for
bearing the nominal voltage at which the equipment is to
run. Since, a 6.6KV motor is to face the voltage of 6.6KV;
hence it is to be tested with 5KV megger. On the other hand,
if you measure the megger of 33KV transformer with 500V
megger, it means that you are giving the pressure of 500V
only to a system which is claiming to be sustain 33000V of
pressure. Hence, the test becomes meaningless, because you
are giving only 500V to a system which has to bear atleast
33000V. In addition, we should also know that basic meeger
voltage are: 500V, 2500V, 5000V. Above that you have to go
Hi-POT test.
| Is This Answer Correct ? | 7 Yes | 5 No |
Post New Answer View All Answers
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
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)
Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.
What will be the current if the resistance total in a series circuit doubles?
What is meant by analogous system?
In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.
what is the ms flat constant for calculating earth mat design calculation?
what is the difference between circular wdg & ractangular wdg?
How to design the NGR Resistance
What is DC series motor?
How we calculate DC inducation moter Amp? Sir pls give me formula......
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
What can you contribute to the progress of our Company as an employee if you are selected?
what is meant by impulse voltage?
what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.
