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Megger EV adapter

lyledunn

The Megger EV adapter has a proximity pilot selector that ranges from N/C to 63A. Presumably it places a particular resistance across PP and PE to mimic the cable capacity but I am at a loss as how to use it. I am thinking that one might need to connect an oscilloscope to view the PWM. I have contacted Megger but no reply as yet. 

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    I was slightly amused/surprised to see that the adaptor includes a "neon screwdriver" type of check on the c.p.c. ("touch the PE
    Pre-test button with a bare finger.    ").

    So you plug the adapter in, turn the PP selector knob, then what? 

    I guess from a BS 7671 perspective you only need to persuade the charge point to 'switch on' and then do all your normal test (Polarity, Zs, RCD, phase rotation etc) ... but then perhaps you could do most of those tests at the incoming terminals of the charge point and not have to bother with the adaptor at all.

    I don't know if the standard for charge points requires any further tests (presumably not IEC/EN 62851-1 as stated - that appears to be for 'Social alarm systems').

    Perhaps, as an early model, they're just exposing all possible features - that doesn't mean you necessarily have to use them.

       - Andy.

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  • 0

    I was slightly amused/surprised to see that the adaptor includes a "neon screwdriver" type of check on the c.p.c. ("touch the PE
    Pre-test button with a bare finger.    ").

    So you plug the adapter in, turn the PP selector knob, then what? 

    I guess from a BS 7671 perspective you only need to persuade the charge point to 'switch on' and then do all your normal test (Polarity, Zs, RCD, phase rotation etc) ... but then perhaps you could do most of those tests at the incoming terminals of the charge point and not have to bother with the adaptor at all.

    I don't know if the standard for charge points requires any further tests (presumably not IEC/EN 62851-1 as stated - that appears to be for 'Social alarm systems').

    Perhaps, as an early model, they're just exposing all possible features - that doesn't mean you necessarily have to use them.

       - Andy.

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