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Solar Tripping M.C.B.

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Evenin' All,


What would cause a domestic solar panel system to trip off its 16 Amp M.C.B. in the consumer unit if any of the below happens please?


a, Turn off and on consumer unit R.C.D.


b, Turn off and on Dedicated solar system isolator switch.


c, Turn off and on  solar system 16 Amp. M.C.B. in consumer unit.


All happened on an overcast drizzly day.


Thanks,


Z.
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  • 0

    AJJewsbury:

    Or a faulty inverter?


    Does the MCB trip immediately on switch-on or after a delay? (e.g. most inverters have a delay of many tens of seconds after grid power returns before re-connecting themselves).


      - Andy.




    Yes on some occasions the M.C.B. trips instantly after turn on of the main R.C.D or turn on of the solar isolator. The tripping off is a bit random. I managed to keep it on after a few tries.


    Z.

Reply
  • 0

    AJJewsbury:

    Or a faulty inverter?


    Does the MCB trip immediately on switch-on or after a delay? (e.g. most inverters have a delay of many tens of seconds after grid power returns before re-connecting themselves).


      - Andy.




    Yes on some occasions the M.C.B. trips instantly after turn on of the main R.C.D or turn on of the solar isolator. The tripping off is a bit random. I managed to keep it on after a few tries.


    Z.

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