What should be the DC voltage for Hi-pot test on 11kv switchgear

Question Posted / rajashekar

Answers were Sorted based on User's Feedback

What should be the DC voltage for Hi-pot test on 11kv switchgear..

Answer / gunasekaran

calculation is (2E+1)1.414
(11*2+1)1.414=23*1.414=32.52*.85=28kV already HV test done
at factory so we have applie only 85%of rated voltage

Is This Answer Correct ?

12 Yes

5 No

What should be the DC voltage for Hi-pot test on 11kv switchgear..

Answer / sandesh

for 20kv for 1.732 times means 20*1.732=35

Is This Answer Correct ?

1 Yes

3 No

What should be the DC voltage for Hi-pot test on 11kv switchgear..

Answer / solanki

i think it will be the around 23 kv for the 11 kv switchgear
bcz its take the calculation twice of rated switchgear voltage

Is This Answer Correct ?

4 Yes

9 No

More Electrical Engineering Interview Questions

what safety use in electrical panel

to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

What is voltage ratio of a transformer?

how to stop oil leakage in power transformer.

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

what is role of mpu in dg

Why PT is fitted in incomer panel.....?

Can we use the 60 HZ transformer/rectifier/Motors/Coils in 50 HZ? if not so, why?

why we use perllel conection system in the wiring?

Define what is difference between fuse and breaker?

Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.

how many earthings will be required for 1 isolator & 2 VCB, which are connected to a 1600 KVA Distribution TRansformer?

For more Electrical Engineering Interview Questions Click Here