HIPOT TEST PROCEDURE | AND | WHY WE USE DC HIPOT FOR CABLE
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- čas přidán 23. 08. 2019
- HIPOT TEST PROCEDURE AND WHY WE USE DC HIPOT FOR CABLE
Why we use DC hipot for cable?
Why we reduce percentage for more then 3rd time hipot test?
What is the procedure to do hipot test?
After hipot what we have to do ?
in my previous video i have given explanation for five question if we want see that click this link.
• HIPOT TEST BASIC QUES...
Please tell me acceptable limits of leakage current
Very good. Thanks 🙏
Thank you too!
Sir Ferranti effect is not suitable for short transmission line... Then how do you tell???
How much leakage current is acceptable limit and after hipot IR value result is compare to Before IR is more or less?
Why when we use AC hipot testing , we get high capacitance? And why high leakage current for high capacitance ? And also explain the how low distance between cables reasons high capacitance
On DC only charging capacitance current take place but for AC charging and discharging also take place additionally inductance also take place in AC so generally leakage current is high when we compare to DC
What are the tests for mv cable? How many tests? Can you explain.
What is meant by LRF test on cable
In your gis switchboard video you use HVAC kit and here hvdc.which one is better and why.and how much leakge current acceptable for gis 66kv cable.please answer
for cable HVDC is better , and for leakge current not have any fixed value. need to ref. FAT
Tell me the procedure of sheath test
If you have to do 11kv cable means what is current range you will select in the hipot kit sir... Same as 33kv??
It needs to be done at the equivalent of Peak AC Voltage.
Sir, why IR test is done before and after cable Hi-pot test ??
to verify Cable not have any damage before hipot test and after hipot test it should be check it is not damage during hipot
Mr . I'm new employe at power plant , I do commissioining with tools dc hipot test , why voltage is (-)/min .?
i am not able to understand
Why is it negative?
Sir can u explain about farrent effect
yes i will make for you.
Thanku sir
What is the purpose of ✓2 in formula while testing the cable using DC
@@baranitech1026 thanks bro unga mail id
@@baranitech1026 Bro mail id invalid nu varuthu
@@baranitech1026 ok bro thanks
For hipot test ac or dc voltage best?
For cable only AC shall be used that too VLF (Very low frequency). DC is not recommended. Olden days we were using DC, but not now.
@@sabumtsabu i think you are saying opposit,DC recommended for Cable and AC for the bus bar
@@djamelbek7506 No, DC hipot on cable is considered destructive as it will increase treeing effect on cables.
Kindly explain in tamil
Worst video i ever seen
thank you very much