Answer / ran7it

u can use a hipot kit. for a 33kv cable the voltage 2 b
applied can b determined by formula (2E + 1),,whr E is the
system voltage,so for tis case it comes as 2*33 +1=67kv.
tis 67kv is mostly applied for the first time in factory
testing..after tat only 60-70% of 67kv sud b applied.
the cable has to withstand tis voltage for 1min..

Answer / pracash

45KV voltage must be applied

Answer / prashant

answer 5 is correct

Answer / rod

Answer 5 is correct, the only thing is it is now not common
practice to Hi-pot cables as this can cause damage to it,
PD tests is the normal method of testing.

Answer / john sundararaj

First decide on which type of cable
type of insulation,single core or 3 core
Ans 8 is the right one.Always go by the manufacturers
recommendation.The values differs for each standards and varies for different countries/utilities.Most of them prefer
soak test rather than hipot.

Answer / mc

we have to consider the phase voltage to ground and nature
of material, but for the first test it's every time
manufacture specification as to be follow.

Answer / suresh babu

HI POT test how much KV applied for 33KV Cable and Time

Answer / s bhattacharya

TO DECIDE THE VOLTAGE APPLICABLE FIRST THING TO SPECIFY
TYPE OF CABLE .
1.IF SINGLE CORE 9NEW CABLE)THEN AS PER IEC GO FOR
BILX0.8/1.732 -AC WITH VARIABLE FREQUENCY CONTROL KIT TO
ADJUST THE FREQUENCY AS PER CABLE LENGTH.
FOR CABLES LESS THAN 132kV.

Answer / guest

Cables are naturally made of pvc,so we can apply high
voltage test to the cables and if its in no damage in high
voltage it should be declared good cable.

Answer / blake australia

A lot of HV cables are XLPE not PVC. If you Megger a 33kV
cable with a DC voltage then you may damage the XLPE
semiconductor around the cable.
Industry standard in Australia(although very expensive to
buy one) is to use a VLF (very low frequency) tester to
test the cables. Same principal as mentioned, just uses an
AC waveform (~.1Hz) opposed to a DC waveform.

what is the differance between normal bybass & maintenance bybass in UPS?

1 Answers  

please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com

0 Answers  

What is the minimum underground tank size capacity considered for firefighting purpose?

0 Answers  

Differnce between negative Pahse SequenceFunction and unbalance Function?

0 Answers   Atsco, LMW Lakshmi Machine Works Limited,

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

3 Answers   NTPC,

Why the core in the distribution transformer is in even number

1 Answers  

What is complex power?

1 Answers   DRDO,

Necessity of transformer earthing

1 Answers  

How can i calculate heat load ?

3 Answers   DSSR, NSN,

what is the use of piston rings in the engine used for a generator...........

0 Answers  

what is electricity

4 Answers  

what is a starter ??

2 Answers   NPTC,