Interested to Buy Any Domain ? << Click Here >> for more details...
what is the std. earthing resistance for 440V system or
m/c, 33000/440 Volt substation? What is the std.?
- 2 Answers
- 7069 Views
- I also Faced
- E-Mail Answers
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
how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt
Please explain, how to test vector group of tranformer(Delta y1) . Thank
how to wiring it with contactor and timer together
Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.
what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?
how we explain parallel paths armature winding?
How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.
how many types control panel of a 132/33 kv substation
by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.
How we can come to know the substation range,without go through any name plate ?
can some one clearly explain why -48 volt DC use in telecom site????
Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
why current flow to the opposite direction of flow of electrons???????????
is ac supply can store
