Insulation Resistance Test of Transformer

This video explains the Insulation Resistance Test of Transformer. It also explains the need of Insulation Resistance Test and when this test must be performed on transformer. The Method for I.R test is explained and interpretation and detailed analysis of the results are also explained in detail.

[humanbeing]

Superb detailed videos, that every videos should have.

[akhtarhussainshah]

It is the ratio of reading taking after 15 or 30 seconds to reading taking after 60 seconds with same coonection as your video. Both readings are taken in one step. The purpose of this test is to ensure integrity of the winding insulation.

[shashanksahu]

It is really a very helpful video. It has cleared all my doubts. Thank u sir.

[nkvaishnav]

Nice Explanation point to point...Will wait for next video.. Quality video..

[jaydoctor]

Thank you sir for your educational video.

[judebarnes]

Nice work - thank you for posting this video. In the calculations you compensate based on room temperature. Should you instead be compensating for transformer oil temperature.

[earnmoney]

Thank you sir🙂, this is very helpful .

[erwinreyes]

thank you so much for your helpful videos

[kiwidevo]

What voltage are you setting the megger to for each test H-XG X-HG and HX-G ?

[smartengineeringeee]

Please give the reference informations in detail that where did you get it.

[goodman]

is the 20 ' c the temperature of winding of the ambient temperature,
another thing would this work with dry transformers ?
thanks

[kdmq]

It's OK to say that any transformer is safe to operate at 20 Celsius, but what if the manufacturing company knows that the transformer is going to be subjected to ambient temperatures much hotter than 20 Celsius? Isn't it better to apply the IR test for the maximum operating temperature. For example, if the transformer is being used in hot summer climates where the temperature regularly reaches 35 Celsius, shouldn't we apply the test for 35 Celsius to make sure there will be no arcing at all times of the year?

[Kishore_.]

What is the resistance value at a temperature of 40 degree celcius

[InnocentJkadono]

what about the test voltage, how is it determined?

[esauogutu]

What is the need of shorting the hv yet it is delta ?

[cedarelectric]

How dovi test for the temperature of the transformer oil

[cedarelectric]

How do we adjust the temperature of the oil of the transformer

[TwoFaced]

Can you please make videos on testing of power cables

[rangerrojo]

Nice work. What books do you suggest about this topic?

[karna]

How the input supply is injected for testing of transformer?. Input source