Announcement

Collapse
No announcement yet.

Voltage spike on solaredge inverter

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    Originally posted by Feenster View Post
    Yes, I had a look at the Zener and, while searching, came across a surge suppressor/arrester. Blusunsolar have them. Appear to be for surges caused by lightning. Any chance it might have a use in my situation?
    I think those things work by clamping the surge to ground. As suggested earlier, the issue in your case sounds like it is that the charge controller which can't handle the change in load. I would guess that an investment in a higher end controller would be more optimum.
    9 kW solar, 42kWh LFP storage. EV owner since 2012

    Comment


    • #17
      Surge suppressors can only handle millisecond surges, not the half hour overvoltage at dawn when panels are cold

      The correct panel configuration or the proper sized charge controller is the best solution, not adding more parts that can fail
      Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
      || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
      || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

      solar: http://tinyurl.com/LMR-Solar
      gen: http://tinyurl.com/LMR-Lister

      Comment


      • #18
        Originally posted by Ampster View Post

        I think those things work by clamping the surge to ground. As suggested earlier, the issue in your case sounds like it is that the charge controller which can't handle the change in load. I would guess that an investment in a higher end controller would be more optimum.
        Yes, indeed, this appears to be the issue. The only problem is that I am just after purchasing this controller. The advantage that it has is that I can attach on 7.5 kW of panels and it limits it to 5 kW for charging the batteries. I don't need 7.5 kW in summer but I do need this amount in winter. Most days, during winter, it won't reach anywhere near 7.5 kW, but there will be days when it might.

        Comment


        • #19
          Most quality MPPT controllers can handle being "over paneled" a bit. To be sure about your controller, use their Sizing Tool, and see if it's an allowable overpanel, or dangerously over.
          Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
          || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
          || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

          solar: http://tinyurl.com/LMR-Solar
          gen: http://tinyurl.com/LMR-Lister

          Comment

          Working...
          X