I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150

I have a 33 KV sub stn with two mother transformers 33/11
KV of capacity 3150 and 1600 KVA respectively. The total
connected load 16809 KVA(11/0.433KV).how i calculate the
max current & how i decided the CMD.

Question Posted / virendra

2 Answers
3365 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150 and 1600 KVA respec..

Answer / er.mazhar0731

CMD 12.85 MW
Maximum current 675 amp

Is This Answer Correct ?

0 Yes

0 No

I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150 and 1600 KVA respec..

Answer / er.mazhar0731

Ur tranformer not able to bear load coz total 4.75 mva are bear 83.125 amp current in 33 kv side and in 11 kv, 250 amp
But As per ur kva 16809 KVA DTC ur load current is 675 amp which is excess ( 100kva = 4 amp 11 kv side current )

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

What is the breakdown voltage?

13 Answers

What is the difference between grounding & earthing?

9 Answers

some ac motor's direction get change dueto ghanging input to the ac drives.(say ryb to rby). but some motor direction remains the same when phase sequence is changed fromdive side. can anybody guide me?

1 Answers

what will happen if dc supply is given to ac motor?

9 Answers CTS,

When we need up only in o/p 440v, so why we use directly in 11kva in input?

0 Answers Lupin, Medhaj Techno Concept,

How to the calculating the Reactive power ( kvar )

3 Answers

66kv under ground cable how to layaing in ground any special case two ckt r runing

0 Answers

how the speed decreases of a generator in power station if load increases

1 Answers Tata Power,

I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok