How can we parallel two transformer with vector gorup YNd11 and YNd1?How is co

How can we parallel two transformer with vector gorup YNd11
and YNd1?How is connection two transformer GT?

Question Posted / farjam

3 Answers
15827 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How can we parallel two transformer with vector gorup YNd11 and YNd1?How is connection two transfo..

It is advised not to parallel the two transformers because
of the difference in their phase shifts. For YNd11 the HV
lags the LV by 30 degrees while in YNd1 the HV leads the LV
by 30 degrees. Parallelling the two will lead to over
heating and other abnormal conditions which may lead their
protective relays to malfunction.

Is This Answer Correct ?

2 Yes

2 No

How can we parallel two transformer with vector gorup YNd11 and YNd1?How is connection two transfo..

Answer / k.prakashchandra

If phase sequence of YNd11 is RYB,then of YNd1, it may be YBR

Is This Answer Correct ?

4 Yes

5 No

How can we parallel two transformer with vector gorup YNd11 and YNd1?How is connection two transfo..

Answer / nasssem

it can be paralleled by reversing the phase sequence of one
of them. For example, a transformer with Yd11 connection
can be paralleled with that having Dy1 connec-tion by
reversing the phase sequence of both primary and secondary
terminals of the Dy1 transformer.

Is This Answer Correct ?

2 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

I had finished D.E.E.E at 2004,I wish to take C license.I am working pvt company HT supply but my professional certificate was missing.I have diploma & course completed certificate.without professinel may I got c license?.pls guide me.

1 Answers OEG,

how to calculate the conductor size for certain KV transmission line and distribution line?

0 Answers Hyundai,

what is the min and max dc voltage for a dc system (110vdc)

1 Answers ASD Lab,

what is tpmo switch

3 Answers

What is voltage ratio of a transformer?

0 Answers

Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency

1 Answers

use of automatic voltage regulator & input voltage of it?