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Random Renewables Thread

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Comments

  • #2822
    JohnySwan
    Registered Users, Registered Users 2, Paid Member Posts: 945 ✭✭✭JohnySwan


    https://www.boards.ie/discussion/comment/123833564#Comment_123833564

     "Having the manual isolator in the attic a half mere away is required and a solenoid operated one in front of (or after?) the manual one seems overkill."

    Always after the shunt.



  • #2823
    graememk
    Moderators, Home & Garden Moderators Posts: 7,188 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123833519#Comment_123833519

    Australia has something like that too.. then they started failing and causing fires. Its a bit ironic isn't it.

    https://www.boards.ie/discussion/comment/123833564#Comment_123833564

    Thats what the fireman switch does.

    Although they aren't relays or solenoids, Id compare them more like the motorised valves on a heating system, But spring loaded. you hear them whirr then a Clunk sound when they engage (and disengage). They need a fast movement to prevent arcing.



  • #2824
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,014 ✭✭✭deezell


    This image from an Irish supplier. It shows what appears to be a remote isolator directly under the roof apex, from there to the DC isolator on the left, then into the cable duct. AC isolator

    sofar-inverter-and-dyness-battery-005,ar_unchanged,w_528,h_704,.jpg

    on the right. A current MCBO beside the DC isolator, probably leakage/overload to the grid, this could be in the consumer unit of it had space. High DC voltage still inside,however short the link from the panels.



  • #2825
    graememk
    Moderators, Home & Garden Moderators Posts: 7,188 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123834166#Comment_123834166

    Yep fireman switch at the top "within 1.5m of entry"
    If it doesnt enter the house, its "within 1.5 m of panels"

    MCB on left is for the battery, then dc isolator (also required by irish regs) inverter, fused spur, AC isolator for the Inverter.

    RCBO for inverter would be in the main consumer unit.



  • #2826
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,014 ✭✭✭deezell


    I was wondering about the battery, are they DC breakers. I was only seeing high current terminals, on closer look theres a small lead sharing the red terminal flexible conduit, is this a mains connection to the battery MS? I could look up the Dyness installation to see, but I've one eye on Brighton/Spurs...



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  • #2827
    graememk
    Moderators, Home & Garden Moderators Posts: 7,188 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/123834346#Comment_123834346

    CAN communication cable between battery and inverter.

    Yep DC MCB, I think they are projoy, 120 amp afaik.



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