where we sense the fault from the transmission lines?any
operation example for distance relay?rear panel connection
for this relay?
Answer Posted / k.prakashchandra
The voltage and current measurements are fed to distance
relay.Z=V/I.During fault V decreases and I increases. Then
value of Z decreases.The relay is set to trip for a certain
low value of Z.So the relay does not trip at zero current
but at zero voltage.Connections are to be done as per the
instructions.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?
Differentiate between kirchhoff’s first law and kirchhoff’s second law?
previous year paper of ntpc bhel for degree in electrical enng
which VFD is better ( LT or HT)
If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive
List the characteristics of filter?
why the active power flow of some line is increased when the active power of out is cut ?
what is d check in dg 1500kva
What is trip and closing coil in cb? Why need of them
give me applications of sequence bridges . (used in 3 phase un balanced systems)
PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com
While testing a ZCT what parameters have to check or measure?
What is creepage distance..... what will be the value for different voltage level
what will be project cost for 100 kv transformer connection under oyt scheme.
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]