What should be the earthing resistance of an industrial
substation and also What should be the house hold earthing
Answer Posted / dev123kk
should be less than 1 ohm
|Is This Answer Correct ?||0 Yes||0 No|
What are hrc fuses and where it is used?
What happens if i apply 500V to 440V rotary Switch ?
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
Tell me all plants load factors i.e which plant operating on which load?
how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???
at which voltage level arcing ground is occurs ??????????
in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.
What information we need to prepare relay coordination chart
why it is so called as xlpe(cross linked poly ethyline) cable?
How to test Alternator stability test for REF relay
Differentiate between kirchhoff’s first law and kirchhoff’s second law?
Why squirrel cage motor can only use with low starting loads ?