One more silly question but i really need some one to make it clear.
I always use a megger to check the IR value of a insulation/insulator. and i am sure most of people are using megger to check the Insulation Resistance. Correct ?
If i check an insulator used in a AC system with megger and get very high value , then i should not be worried about the condition of the insulator.
Another view :-
As the megger uses DC voltage to check the insulation resistance , it does not give right condition of insulator.As we use this insulator on AC system ,and if the insulator is old enough , there could be leakage current due to capacitive reactance with respect to ground and can cause flash over.
Is it correct or not?
I always use a megger to check the IR value of a insulation/insulator. and i am sure most of people are using megger to check the Insulation Resistance. Correct ?
If i check an insulator used in a AC system with megger and get very high value , then i should not be worried about the condition of the insulator.
Another view :-
As the megger uses DC voltage to check the insulation resistance , it does not give right condition of insulator.As we use this insulator on AC system ,and if the insulator is old enough , there could be leakage current due to capacitive reactance with respect to ground and can cause flash over.
Is it correct or not?