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Loss of mains for type tested generation units

Jam
Hi all,


I'm reviewing the Loss of Mains protection for a number of old (pre-2018) G59 type tested inverters. While for site commissioned units it is required to note the LOM detection method, the "G59 certificate" only records operation time. I haven't managed to find (yet) a statement that it must be a certain method; G59 only seems to say that the parameters must be XX for each method (depending on age) and leaves it open to the manufacturer to decide. Does anyone know where it states which method is used? I'm also trying manufacturers but not all of them still exist!


It's always been a niggle at the back of my mind, but it's not been an issue... Now with the ENA's requirement to update old settings it's relevant.


Ta,

Jam
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  • 0
    do uksales@ginlong.com  have anything to say ? Perhaps they offer a reprogramming service?

    Being in Liverpool there will be less of a problem with time shift, though the language barrier may still apply... But equally they may not know either.


    This has not been on my RADAR, but reading quickly, it seems there is a desire to make inverter generation more tenacious and not drop off-grid so quickly, which I presume relates to grid stability concerns.

    Finding
    Where the requisite RoCoF setting cannot be achieved without additional investment, remove LoM protection from all generation except for synchronous and doubly-fed induction (DFIG) units

    Is a bit of a surprise, I guess it acknowledges that some kit cannot just be re-programmed, but to say OK, in that case disable Loss of Mains detection altogether seems a bit extreme. I presume it does not apply to many.
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  • 0
    do uksales@ginlong.com  have anything to say ? Perhaps they offer a reprogramming service?

    Being in Liverpool there will be less of a problem with time shift, though the language barrier may still apply... But equally they may not know either.


    This has not been on my RADAR, but reading quickly, it seems there is a desire to make inverter generation more tenacious and not drop off-grid so quickly, which I presume relates to grid stability concerns.

    Finding
    Where the requisite RoCoF setting cannot be achieved without additional investment, remove LoM protection from all generation except for synchronous and doubly-fed induction (DFIG) units

    Is a bit of a surprise, I guess it acknowledges that some kit cannot just be re-programmed, but to say OK, in that case disable Loss of Mains detection altogether seems a bit extreme. I presume it does not apply to many.
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