How we check vector group for a Dyn1 transformer?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Question Posted / amal

6 Answers
27521 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How we check vector group for a Dyn1 transformer?..

Answer / s.ravindra

The condition of dyn1 was
(a) 1W2N+1U2N=1U1W
(b) 1W2W=1W2V
(c) 1V2W >1V2V

Is This Answer Correct ?

14 Yes

1 No

How we check vector group for a Dyn1 transformer?..

Answer / gunasekaran

we can find out from ratio kit
if applied UV-vn get energised
if applied VW-wn get energised
if applied WU-un get energised

Is This Answer Correct ?

11 Yes

2 No

How we check vector group for a Dyn1 transformer?..

Answer / vinod maurya

We will short 1U & 2U
And we will apply 3 phase voltage between 1U,1V,1W

Measure between
1U-1V
1V-1W
1W-1U
1V-2v
1V-2w
1W-2w
1W-2v
1W-2n
2n-1U

Verify The Condition
1W-2n+2n-1U= 1U-1W
1W-2w=1W-2v
1V-2v<1V-2w

vector group Dyn1 confirmed if the above conditions are
satisfied.

Is This Answer Correct ?

8 Yes

1 No

How we check vector group for a Dyn1 transformer?..

Answer / y.rama krishna

Connect 1U&2U
Apply 3ph 415V balanced voltage across terminals 1U,1V,1W
(HV wdg)
Measure the voltages between the given terminals & record
1)1U-1V
2)1V-1W
3)1W-1V
4)1V-2V
5)1V-2W
6)1W-2V
7)1W-2W
8)1U-2N
9)1V-2N
Verify the conditions
a)1W-2W = 1W-2V
b)1V-2W = 1V-2V
c)1U-1V = (1U-2N)+(1V-2N)
vector group Dyn1 confirmed if the above conditions are
satisfied.

Is This Answer Correct ?

18 Yes

16 No

How we check vector group for a Dyn1 transformer?..

Answer / mahmoud moustafa

The condition of dyn1 was
(a) 1W2N+1U2N=1U1W
(b) 1W2W=1W2V
(c) 1V2W >1V2V
this is correct I check today in one of GE sites

Is This Answer Correct ?

2 Yes

0 No

How we check vector group for a Dyn1 transformer?..

Answer / sakthiyam

i want DdOyn11 conditions

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

Where do we adjust the setting of thermal over load relay & how cal calulate.

1 Answers Hilton,

What is the ideal position cooling fan inside the dc motor?

0 Answers Kay Bouvet,

i want all question & answers of the written exam

1 Answers Essar, L&T, MES, RRB,

why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

0 Answers

Why 9KV surge arrester having 7.65KV of MCOV?

0 Answers

Why the arms of delta in a delta-wye power transmission system are kept constant??

0 Answers

how is working the auto transformer?

1 Answers

can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

0 Answers

how are reversing the direction of dc motor

0 Answers

What are the Full Forms of TVM, MTL, CVT ?

0 Answers

1.WHAT ARE TRANSMISSION LINE LOSSES DURING WINTER AND SUMMER SEASON? 2.WHAT ARE THE CAUSES/ 3.WHEN THE CORONA IS MORE?.,WHETHER WINTER OR SUMMER? 4. WHAT IS THE PERCENTAGE OF LOSSES IN TRANSMISSION LINE?

1 Answers Coastal Energen,

What is spill current in protection relays?

1 Answers

For more Electrical Engineering Interview Questions Click Here