Answer Posted / raghavendran
NGr can be calculated by dividing the system voltage by the
allowable let through current from the resister to earrth.
say the system voltage is 600 volts and the allowable let
through current is 25A then the NGR value could be 600/25 =
24ohms.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
Why corona leads to production of Ozone and glow of the color VOILET?
how many electricity poles are there and what are the names and their sizes.
what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor
How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
What are the factor to be consider for CT selection in 132kV substation?
What was your role in the silicon evaluation/product ramp? What tools did you use?
What is a system?
Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?
We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
what is cathodic protaction?
how do you choose the cable size as per amps rating & the voltage drop for the same.
when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)
Define rise time.
I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.