This might be a stupid question coming from an Electrical Engineering professional, but one has to clear his doubts..
While going through online catalogues for VLF cable test Kits, i have noticed one particular advantage claimed by VLF testing against DC Hi Pot testing as
No harmful Space charges and travelling waves are developed/.generated"
I understand that the Space Charges are developed in the insulation, but on travelling waves i dont have much idea.
Could someone please explain
1. how are these space charges and travelling waves generated? during a DCV Hi Pot test?
2. How are these negated/minimsed in a AC VLF test?
While going through online catalogues for VLF cable test Kits, i have noticed one particular advantage claimed by VLF testing against DC Hi Pot testing as
No harmful Space charges and travelling waves are developed/.generated"
I understand that the Space Charges are developed in the insulation, but on travelling waves i dont have much idea.
Could someone please explain
1. how are these space charges and travelling waves generated? during a DCV Hi Pot test?
2. How are these negated/minimsed in a AC VLF test?
