how we are desining 63.5 ohm resistor for NGR of alternator?
Answer / vg
to limit the earth fault current generator/Alternator NGR design. ex. for 11KV generator Earth Fault Current to be limit on 100 Amp.
V=I*R
R=V/I
so I=11000/1.732*100=63.5Ohms.
11KV generator NGR 63.5 amps for 100 Amp fault current.
Is This Answer Correct ? | 8 Yes | 0 No |
what is d check in dg 1500kva
back emf of motor at the time of starting ?
What is YNyn Transformer? and what are the other types in this?
what is meant by impedance & transient protection?
Why we should use delta connection in primary and star connection in an distribution transformer, which converts 400v a.c. voltage to 33kv.
15 Answers ABC, Kirloskar, Sify,
onan full form
what is the Transmission line differential protection and why differential protection also have backup Line Distance Protection ?
what is the difference between LT and HT power supply?
26 Answers Center One Mall, Central University, JSW, Siemens, Suzlon,
Current Transformer's star point must face the protected object for the relay operation?
WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?
A long transmission line is limited by - a)thermal limited b)voltage limited c)stability limited d) L,C limited please explain with proper reason.
what will happen at secondary side of transformer if i increase voltage at primary side?while V1*I1=V2*I2 will secondary voltage or current increase?