Why 60Hz motor taking more current on load in 50Hz power
supply?
tell me the operation of ELCB. How it detects a fault?
describe your self.
what is brushless generator?
Why 66KV is step down to 11KV and then 433v, not directly 66KV to 433v ?
Why transformer rating in KVA? describe.
What is the diffrece between ACB & MCCB
what is meant by GD2 ?
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
What should be the minimum and maximum ohmic value for earthing?
raleigh method
What is the normal earth resistance?
why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?