How to determine earth fault level to set relay for a
normal distribution system of 11 kV , 100 A load????????
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
I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.
What are the advantages and disadvantages of closed-loop control system?
How to detect voltage vector shifting in interconnection protection.
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...?
why we use sinosidal voltage / current instead of others in system?
explanation of mesh bus bars
what is subtransient , transient and steady stateac components
Dear sir, I completed DECE In the year 1995.Now i am working in a private company from last 10 years as an Electrical supervisor.The company having a 1000 KVA transformer.Now i try to apply "C" Licence. I am eligible or not.If not eligible,pls give solution.
what is the mechanical safety of DG ?
Difference between low impedance and high impedance Restricted Earth Fault
why -48 volts dc used in telecommucation
The series field winding has low resistance while the shunt field winding has high resistance. Why?
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
how can motor both beasrings insulation resistance can be check?
What is the function of under voltage release ?