what is the primary current in 415/415 v when secondry of dry type transforme

what is the primary current in 415/415 v when secondry of
dry type transformer is shorted.?

Question Posted / ravi.chitturi

3 Answers
6438 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?..

Answer / naresh kinger

First calculate the short circuit current on the secondry
side. It will be = FLC/percentage inpedence X 100.

Now you can calculate primary current using tranformer
ratio.

Is This Answer Correct ?

3 Yes

1 No

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?..

Answer / naresh kinger

It will be 139/4.7 x 100 = 3415 AMP on secondry side.

Since ratio is 1/1, primary current will also be 3415 AMP.

Hope it clear now. For any doubt, you can write me at
n.k.kinger@gmail.com

Is This Answer Correct ?

2 Yes

1 No

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?..

Answer / ravishankar

flc is 139amps .then impedance of the transformer is 4.07
then it is 34.15 amps.ratio is 1:1
is the primary current34.15?

Is This Answer Correct ?

2 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

ganaretors A check B check and C check details

1 Answers

what is the last range of mccb in amp?

2 Answers

How many types of instrument cables are there?

0 Answers

wat s reactive power.... how could it be compensated.....

4 Answers TCS,

in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

3 Answers Voltamp,

Abb 11kv how it is closing automatically when the cb is racking in and rack out when it reaching test position

1 Answers

How to select Main CB Rating for 220 KW Load?

3 Answers Voltech,

Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.

1 Answers Electrical Tech,

For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill

1 Answers

why current transformer secondary is short circuited an what will happen if connect very high resistance acrossthe secondary side of current transformer?

1 Answers NPCIL,

what is the purpose of neutral grounding resistor (NER) and why?

8 Answers CBRE, Square Textiles,

what is pole slip ?

4 Answers NTPC,

For more Electrical Engineering Interview Questions Click Here