I have 2 Nos of 2500kVA 33/0.415V cast resin transformers.
How to decide on ampere rating of HT Panel?
Also advise me how many panel RMG i have to consider
whether 4 panel ok?
Answer Posted / a.p.nanjappa
you have not mentioned the 33kv source. is it fed from one
source or two sources.
your transformer rating is 2500kva, 33/0.42 48/3500A.
THERE IS NO 100A.33KV SW.GR
THE MINIMUM RATING IS 400A,33KV METALCLAD SW.GR, 25KA/1s.
if the sorce is one ,then 3 panel of 33kv sw.gr enough.
If the source is two,then four panel required.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
i want to know that what is the eligibility critaria for ongc exam?
where does 22kv line starts
At what speed an electric car can run with 2 HP motor of weighing 400 kg?
what is the working principle of energy saver control panel. please give the complete calculation & theory.
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?
What is the source of dependent source ?
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
Mention what are the different colors on wires indicates?
Define the three phase formula fuse.
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?