DOES AN EARTH FAULT CURRENT ON THE DELTA SIDE OF A 6.6/33KV STEP UP STAR-DELTA

DOES AN EARTH FAULT CURRENT ON THE DELTA SIDE OF A 6.6/33KV
STEP UP STAR-DELTA CONNECTED TRANSFORMER REFLECT ON THE
STAR SIDE? IF YES, THEN HOW AND WHAT IS THE AMOUNT OF
CURRENT REFLECTED?

Question Posted / minu

1 Answers
5443 Views
I also Faced
E-Mail Answers

DOES AN EARTH FAULT CURRENT ON THE DELTA SIDE OF A 6.6/33KV STEP UP STAR-DELTA CONNECTED TRANSFORM..

Answer / k.prakashchandra

There can not be earth fault on delta side as there is no
neutral for earthing and the neutral of the primary gets
isolated .It is customary to have delta -star step up
transformer instead of star-delta.

Is This Answer Correct ?

1 Yes

9 No

Post New Answer

More Electrical Engineering Interview Questions

We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

4 Answers

if you short the any 2phase(R,Y,B),why fuse get blown?

5 Answers Steel Plant,

What is the difference between CT for protection and Ct for metering?

16 Answers BirlaSoft,

How to decide the rating of CBCT? We have 6.6Kv switchgear & having 50/1 cbct ,i want to know how this 50/1 A came? On what basis we decide CBCT reting?

1 Answers Cross,

How to calulate Locked rotor amper(LRA) for compressor type motors?

0 Answers MAF Dalkia,

What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2)

0 Answers Greenko Group,

How to decide whether A / B / C / D curve type MCB should be used?

0 Answers

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 Answers

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

0 Answers

Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

0 Answers

Do power transformers have an Automatic Voltage Regulator (AVR) just like the alternator/generator in a power system?

4 Answers

how to read idmt curva

0 Answers

For more Electrical Engineering Interview Questions Click Here