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Thread: How to check if an RC surge supressor is still working or not?

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    Default How to check if an RC surge supressor is still working or not?

    Hi everyone,

    I was wondering how I can test an RC surge suppressor to see if it is still working properly? It is 0.33uF+20Ω/2W 1000V.AC, MTI-MCR-P as shown in the image below which is connected into the thyristor module/ silicon controlled rectifier (MTC-110-16) inside a furnace.

    MTIMCRP.jpg

    Thanks,

    Jalalah

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    Do you have a meter that can measure capacitance? some multi-meters can.
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    Yes, I check it by LCR meter. It is ok.

    Thank you!

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    Glad to be of help.

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    I tried this once and failed. Then I phoned the manufacturer and the only thing they had to say was, "You can't test them".

    However, the theory is that a high voltage pulse will be attenuated. If you can set up a thousand volt pulse and watch the results on an oscilloscope, you should have a result.
    work as graphic design at iprice indonesia

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    If it is a MOV over-voltage suppressor one indeed needs a high voltage pulse for testing, but if it is an RC snubber one can test without high voltage.

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