why it is necessary to short and ground of a current transformer secondary side

Categories >> Engineering >> Electrical Engineering
Suggest New Category

why it is necessary to short and ground of a current
transformer secondary side?

Question Posted / kundan15273

6 Answers
9504 Views
Ambuja, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

why it is necessary to short and ground of a current transformer secondary side?..

Answer / pramod sahoo

To protect the CT from static voltage surges resulting in
insulation falure.

Is This Answer Correct ?

4 Yes

0 No

why it is necessary to short and ground of a current transformer secondary side?..

Answer / sheik hussain

if secondary side open ct act as step up transformer so flux
is increased ,for that insulation is not withstand so
vibration and high voltage occurs thats why we should kept
the sec terminals closed condition..

actually ct is not have a pry turn it have only sec tunas,
pry side is like busbar cable conductor ect.,so when s1,s2
is open it mutual inductance is occurs so act as a step up
transformer.. the flux is incresed,insuation get failure

Is This Answer Correct ?

2 Yes

0 No

why it is necessary to short and ground of a current transformer secondary side?..

Answer / simon

The Eddy current's value is too high so the sec side of X-mer is grounded.

Is This Answer Correct ?

1 Yes

0 No

why it is necessary to short and ground of a current transformer secondary side?..

Answer / gunasekhar

because secondary of c.t is of h.voltage

Is This Answer Correct ?

0 Yes

0 No

why it is necessary to short and ground of a current transformer secondary side?..

Answer / abb

Open Circuit secondary side of the Current Transformers
causes saturation due to high voltage induced.

Is This Answer Correct ?

0 Yes

0 No

why it is necessary to short and ground of a current transformer secondary side?..

Answer / k.prakashchandra

Shorting is done ,when the ct is not in use or in case of
spare ct, to prevent development of high voltage in
secondary.Grounding is done to remove the influence of high
primary voltage due to capacitance between primary and
secondary, and insulation failure.

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

what is the k var ratting of 1250kva

0 Answers

Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

0 Answers

how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021

0 Answers

Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?

8 Answers Energia, L&T, Sail,

A cotter joint is generally used to transmit

0 Answers Caterpillar,

Why infinite busbar has zero resistance and high mechanical inertia?

1 Answers

Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

6 Answers L&T,

EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?

0 Answers Coal India,

The exciting current of a transformer is non sinusoidal. why?

2 Answers

sugest any typical project ?

0 Answers

Control wiring of a dol starter for forward and backward

0 Answers Basj Industries,

Why the power factor improvement is so important in industrial loads

0 Answers

For more Electrical Engineering Interview Questions Click Here