Interested to Buy Any Domain ? << Click Here >> for more details...
How to determine earth fault level to set relay for a
normal distribution system of 11 kV , 100 A load????????
- 1 Answers
- 4211 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
EFR is usually set at 20 % of OCR.The earth fault current
is V/ Z of the line + ER value of the support.But you can
not expect this calculated earth fault current.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Why efficiency in thermal power plant is low?
What is the application of Dyn1 and Dyn11 vector group of transformer?
What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?
what is rating boiler
What is the Minimum winding resistance of motors ( small & big)? referance range
WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
why we use Test Terminal Block in 11 KV and 33 KV electrical panels.
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
What is the Resposiblity of Electrical Utility Engineer
what is the k var ratting of 1250kva
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.
what is the safety of voltage power transformer(2250KVA0
I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.
