Hi.
A quick way to check if the varistor is okay is to test with DMM
if it has infinite resistance.
But this test can't tell me if the varistor meet the requirements,
like if the clamping voltage of the varistor at 1mA DC
meets the value which the varistor is rated.
How can i test that without a special laboratory instruments?
Maybe with a megger in series with a resistor...?
Thanks
A quick way to check if the varistor is okay is to test with DMM
if it has infinite resistance.
But this test can't tell me if the varistor meet the requirements,
like if the clamping voltage of the varistor at 1mA DC
meets the value which the varistor is rated.
How can i test that without a special laboratory instruments?
Maybe with a megger in series with a resistor...?
Thanks