Why in medium voltage system(3.3kv to 33kv, neutral is
earthed with either resistance, reactance or neutral
grounding resistance?

Answer Posted / ramachandran.s

to limit the fault current so as to minimise the fault
current. the system can run with a single fault. when
second earth fault occur the system will trip of fail. so
when the first fault occur corrective step has to be taken
to rectify the fault. thus neutral is earthed thro'
resistance or reactance will increase the relability of the
system

Is This Answer Correct ?    4 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is difference between Harmonic and Non harmonic Capacitor Bank?

2397


What is the two pole structure?

1426


how to decide choke rating for drive?

1880


why booster transformer is used in sumpners test conducted on transformer????

3085


How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1597






Where is servomechanism used?

663


List out the the types of Mounting Light fixture?

1203


List examples of current sources?

617


What is the difference between PLC and Embeded system

963


Explain about technical and non technical losses in distribution system?

625


Why HT 11 KV Slipring Motors are connected in star ?

1770


WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

1629


What are the two major types of control system?

651


Draw the single line diagram of the power station?

660


what is maxemo work permit procedure

1689