In Megger which types of test we can do ? and How it works? How to use?
Answer Posted / nandagopan
for 3 phase motors megger is used to test the insulation
resistance of motor winding.phase to earth(winding to body)
must be greater than 1 mega ohm.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
(1)Can earth and be conected together (2) what is the diferent between earth & neutral
Why power factor should not be in leading (capacitive) mode of any load.
I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
What is the function of NER and NET?
what is the IPC ? & what the uses ?
what is the VA(Volt-amphere)? define with calculation?
What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?
How two nos. 130 kw D.C motor get synchronise using D.C drive.
Why HT 11 KV Slipring Motors are connected in star ?
Load break swicth maintenance procedure.
in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?