what is the std. earthing resistance for 440V system or
m/c, 33000/440 Volt substation? What is the std.?
Answer Posted / saic~ehvvibes
Earthing resistance standard values:
Without Grid (Individual Earth Pit) = Less than 01Ohm
With Grid = less than 05Ohms
Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
what is the method of earthing of a transformer using electrodes?
how can you size an automatic voltage regulator?
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
If we want to change a contactor of faulty one what are the conditions want to fullfil
why u r living from presentaly working.
How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?
how generator avr give to the input?
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
What is meant by positive and negative feedback?
what is the advantage of connecting capacitors in delta than in star?
how to check ac servo motor
how to calculate the earth mat design in 132 kv substation yard ????
what is the difference b/w ATS and HTS?