200kV High Voltage Test Set

Respected sir,

here i am using the cut sample of the frp rod (size dia:33.5mm and thickness:30+/-0.5mm), which is cleaned by iso propyle alcohal.

sir what i am thinking that we have 200kV high voltage set, and if we use 100kV high voltage set, then result can be change.

sir i asked to my previous company fellow that perform this test on the 100kV high voltage set, then he obeserved that leake current on the same specimen is 0.8mA, that is twice then the 200kV high voltage set, which is 1.6mA.

but sir i have only 200kVhigh voltage set, so sir how can i solve this problem on the 200kVhigh voltage set

Respected sir,

here i am using the cut sample of the frp rod (size dia:33.5mm and thickness:30+/-0.5mm), which is cleaned by iso propyle alcohal.

sir what i am thinking that we have 200kV high voltage set, and if we use 100kV high voltage set, then result can be change.

sir i asked to my previous company fellow that perform this test on the 100kV high voltage set, then he obeserved that leake current on the same specimen is 0.8mA, that is twice then the 200kV high voltage set, which is 1.6mA.

but sir i have only 200kVhigh voltage set, so sir how can i solve this problem on the 200kVhigh voltage set.

sir what i am thinking that we have 200kV high voltage set, and if we use 100kV high voltage set, then result can be change.

No, the result cannot change unless the test sets are different in some way (different voltage waveform, regulation, frequency, etc).

It still sound like you either have an excessive leakage problem in your test setup as a result of either your test set (dirty insulators, etc), your test leads or your test setup (see my comments above in post #5). These could all be factors that are effecting your reading but I think the most important thing to do is to double check your leakage current and voltage measurements to make sure they are displaying accurately.

Dea sir,

hello!

thanks for your's valuable suggetion in this work,

but sir i have performed the same test on the 100kV high voltage test set in my previuous company, and the result of the leakage current are 0.4-0.8mA, but here on the same specimen(FRP rod), theresulat is just double 1.6mA, on the 200kV high volateg test.

yes i clean my test specimen with the iso propyl alcohal , as per IEC-61109.

but i couldn't find satisfactory result.

sir i disscussed with the senior engineer, he replied me that conect the 1kilo ohm resistance in the ground wire, so that you can get low leake current, i connect 1 kilo ohm resostate in series with bthe ground wire but on 12kv i obeserved the 1.6mA same leake current.

now please help me if i conewct the same resostate in series with the phase wire coming from the transformer, then can i get goood result.

help me sir.

rahul sharma

new delhi

now please help me if i conewct the same resostate in series with the phase wire coming from the transformer, then can i get goood result.

Again it depends on how your 200kV test set is designed and what is written in the standards relating to your particular test. From what you are saying there may be a difference in the way the new 200kV test set works compared to the 100kV test set you used at your previous job (such as a compensating series resistance as mentioned).

In a case like this I would talk with your local test engineers (those that know how to use the specific 200kV test set) and check your company test manuals (and 200kV test set manual) as the setup procedure for this 200kV test set may indeed be different than you are used to which is causing you to read a much higher leakage current.