WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION?
Answer Posted / prasoon
In a HV Sub station, 220 Volt system is not earthed to
avoid mal operation of DC controlled electrical elemnets in
case of a earth fault.
50 Volt system is earthed (-ve). This is done as 50 volt
system is used for electronic circuits where -ve voltage is
required to opearate npn transistors.
Is This Answer Correct ? | 7 Yes | 6 No |
Post New Answer View All Answers
What is meant by harmonic distortion?
What will happen if the voltage in my house drops from 220V to any lower voltage?
what is lrs tank water resistance.
what are safety measures in /control in diesal engine/ explain them?
What is ramp signal?
What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
What is the difference between DOL starter and star delta starter
what is effect of length of air gap on performance of dc motor and generator?
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
why magnetising curve not start with zero voltage?
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
how can i use REF and diffrencial relay both in 1 CT core for transformer protection?
why should small green grass ans small plant should not be there inside the transformer Yard in the factories
What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?