Please Help Members By Posting Answers For Below Questions
Why the output of OP-AMP is always less than Vcc?
what are the effects when a salient pole alternator is run
at high speed like 3000 r.p.m?
why Lightning arrestor are made by 2 seperate stack of
inslutor but why cvt are in single stack of insulator.
what is the difference between dropout fuse and horn gap
fuse. how to choose between them
what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?
what is meaning of
I need model question papers for RRB section engineer
Chennai... Please send to my E-mail Id:-
What it the purpose of parallel phasing transfomers??
for a 400kv t/m line with 10 ampere current will corona occur?
Is there any reason that we get shock on touching phase wire
because the earth is at neutral potential?
Is there any reason that the earth is at neutral potential
because the neutral is earthed in apower station
How you will determine the volume of oil in a particular Distribution transformer.
how much value of resistance should connect to 15 kw, 6
pole 3 phase slip ring induction motor having RV-240, RA-42.
We have drive feeding an output contactor for a 5000 hp
motor @ 5kV application.
The motor FLA is 629amps x 1.25% service factor = 786.25
The cable that we current have in place between the drive
and the output contactor is 350kcmil- MV-105 (parallel
cables). Per the NEC table 310.60 (C) (69). This show the
cable ampacity is at 615 amps per cable for a rating of
We have derated the cable for the cable tray and the
multiple cables application and our calculations show that
after the correction factor factor we are at 922amps.
1230 amps x .75% correction factor factor = 922.5 amps.
The customer is driving us to then use another safety
factor of .25% off of the already derated cable. Can you
please provide a longhand calculation for your solution on
how to measure winding resistance of single phase motor?
The transmission does not have
b) Flicker noise
d) Short noise