What should be the earthing resistance of an industrial
substation and also What should be the house hold earthing
resistance?
- 20 Answers
- 93648 Views
- Jindal, Pharma, TAAT, TATA, I also Faced
- E-Mail Answers
Answer Posted / ngundam
For house hold maximun value of earthing can be 2
ohms.But for a substation it should be less than 1 ohms.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
What is step signal?
what is the maximim current drawn by 1 phase and three phase welding machine
if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side
why current is constant on d.c?
explain wiring system
WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.
what is the function of capacitor duty contactor in an capacitor panel???
please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
I need bhel electrical test pattern & paper
define the active power?
why is control bus bi-directional?
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
