for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is th

for testing busbar (33kv) hi-pot .whether we can apply DC r
not.and what is the test volt for that .explain

Question Posted / sanjeevi

4 Answers
17263 Views
WGPSN, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that..

Answer / senthil kumar

we can able to test ac or dc. thats manufactures chosen.in ac hi-pot leakage current will be more(mA).but DC hi-pot leakage current will be less. but dc voltage charge the capacitance. in ac hi-pot we are applying 2V+1X 0.8 in dc hi-pot 2V+1X1.414X 0.8.

Is This Answer Correct ?

11 Yes

1 No

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that..

Answer / vijay

Yes, we can.
For test voltage we have to apply 80% of factory test
voltage i.e. 80% of 70 kv ac (factory test voltage) =56 kv
for 1 min.

Is This Answer Correct ?

11 Yes

6 No

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that..

Answer / shaikh

For 33KV Ac Busbar testing, we can apply 5.0k (5000v)DC for
1-3 mints.

Is This Answer Correct ?

3 Yes

10 No

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that..

Answer / ashish

For Testing Busbar 33 Kv ( HI-POT ) We Have To Apply the (
1.732* 33000)DC Volt for 3 min.

Is This Answer Correct ?

9 Yes

18 No

Post New Answer

More Electrical Engineering Interview Questions

What are the major reasons for balancing hydro-thermal mix?

0 Answers

What is the differemce between Pulse transformer and Welding transformer.

1 Answers BARC,

1)What will be full load current for 1000kva 3 phase generator. 2)What will be full load current for 20Kva 1 phase inverter.

5 Answers

What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

0 Answers

what is VFD and how to save the power by using VFD?

7 Answers

how much current in live 11 Kv distribution Line?

1 Answers ABB,

What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?

0 Answers JKN Limited,

which type of winding is used for high voltage & low current?

1 Answers GEB,

Explain role of Buckolz Relay in Transformer ?

7 Answers

230v 1 phase Phase and Neutral insert in Bulk water what happens.

1 Answers IVRCL,

last 5 year rrb allahabad junior engg electrial engg question paper

0 Answers RRB,

For 300 MW plant what is the distribution voltage

6 Answers

For more Electrical Engineering Interview Questions Click Here