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RCD S type testing

Sparkymania
Hi all


I was using the RCD S type test on a Megger MFT1711.


It does a 30 second countdown from when the test button is pressed before doing the test. This seems to have no function at all. Although you can bypass this delay by pressing the test button again I still don't see what this delay would do.


Any thoughts on this?



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  • 0
    Yes, but that happens in an instant and you don't know it's happening as the tester does indicate that it's doing a half current pretest.

    What I'm talking about is the actual 30 second countdown shown on the display before it actually does the test.

    I don't know if it's only Megger that do this.
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  • 0
    Yes, but that happens in an instant and you don't know it's happening as the tester does indicate that it's doing a half current pretest.

    What I'm talking about is the actual 30 second countdown shown on the display before it actually does the test.

    I don't know if it's only Megger that do this.
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