Search:

Type: Posts; User: Zee

Page 1 of 8 1 2 3 4

Search: Search took 0.78 seconds.

  1. Thread: 705.12 A

    by Zee
    Replies
    8$$
    Views
    212

    Well....:p OK...let's run with what the...

    Well....:p OK...let's run with what the inspector wants.
    You do, in fact, meet the 120% rule. Very, very handily.

    120% rule says ,
    The sum of breakers SUPPLYING power to the busbar cannot...
  2. Replies
    3$$
    Views
    131

    BTW - More of a nitty-gritty, nuts and bolts type...

    BTW - More of a nitty-gritty, nuts and bolts type comment: you might consider upgrading the old inverter to a single, new, 10 yr warranty, safer, more reliable, higher kw inverter that is equipped...
  3. Replies
    3$$
    Views
    131

    I don't see why not. This issue usually revolves...

    I don't see why not. This issue usually revolves around the permissibility of having more than one PV AC disconnect. That is either the PV Breaker in the main or a fused AC Disconnect..
    However,...
  4. Thread: 705.12 A

    by Zee
    Replies
    8$$
    Views
    212

    I am having a really hard time understanding your...

    I am having a really hard time understanding your situation. Can you clarify? photo or sketch is best.

    Right now it does seem like you have a "split service" panel. Ie two @ 2 pole breakers can be...
  5. Replies
    6$$
    Views
    537

    That is great. I wonder how long you can keep...

    That is great.

    I wonder how long you can keep these running!

    So, you did a temporary swap of the GFDI board? Could you get a new and permanent replacement?
    edit: Oh I see your attachment, you...
  6. Replies
    10$$
    Views
    347

    40 amps is correct as breaker size for the 5000,...

    40 amps is correct as breaker size for the 5000, 6000 and 7700 inverters each.

    However, to save you wire size..... and labor and cost:
    Consider using as many
    3800
    7600
    and 11400 inverters as...
  7. Replies
    10$$
    Views
    347

    Thanks. I had no idea the inverter output rating...

    Thanks. I had no idea the inverter output rating counts per 2014 NEC. Could you provide the actual wording? ( I only have the 2011 NEC) I thought it was still the PV ocpd rating, ie pv brkr rating....
  8. Replies
    10$$
    Views
    347

    yes, the label should read: WARNING: THIS...

    yes, the label should read:

    WARNING:
    THIS EQUIPMENT FED BY MULTIPLE SOURCES.
    TOTAL RATING OF ALL OVERCURRENT DEVICES,
    EXCLUDING MAIN SUPPLY OVERCURRENT DEVICE,
    SHALL NOT EXCEED AMPACITY...
  9. Thread: DC

    by Zee
    Replies
    7$$
    Views
    501

    1. Never work with live wires: FIRST - Run...

    1.
    Never work with live wires:

    FIRST - Run all dc wire in conduit, lay dc wire in rack, land it in terminals in boxes and inverters, and crimp + and - plugs onto pv wire.
    THEN - mount and...
  10. Replies
    32$$
    Views
    1,315

    Solaredge's manuals, seem to suggest that other...

    Solaredge's manuals, seem to suggest that other makes of inverters could possibly be used with their power optimizers.
    I wonder.....
    (certainly the online, panel-level monitoring features would be...
  11. Replies
    14$$
    Views
    609

    The inspector is remembering the way it used to...

    The inspector is remembering the way it used to be, with the older Enphase inverters. In that regard he WAS correct. Prosolar's article pertains to that also.
    However, if it is the newer M215 with...
  12. What Jaggedben said is excellent. I would...

    What Jaggedben said is excellent.

    I would just add: aluminum rail and aluminum module frames when bolted to each other - or other metal - DO NOT create a good metal to metal connection...
  13. Replies
    3$$
    Views
    481

    Right, to sense voltage on each individual hot...

    Right, to sense voltage on each individual hot wire to neutral. For example: you may have 240 Vac across the two hot wires...but that could mean the individual conductor voltages are balanced at 120...
  14. Replies
    6$$
    Views
    537

    Given my experiences with these inverters, i am...

    Given my experiences with these inverters, i am 90% sure you need a replacement.
    (although i never work inside teh electronics on an inverter...... i do not know enough about teh electronics, and...
  15. Replies
    10$$
    Views
    676

    I've seen the white stripe factory-painted onto...

    I've seen the white stripe factory-painted onto "PV Wire" before. Good idea.

    Red will fade to snow white on use-2.... i have seen it too... Will new PV wire behave similarly???? who knows....
  16. Replies
    18$$
    Views
    1,105

    ...or just get a 175 Amp main breaker = up to 25...

    ...or just get a 175 Amp main breaker = up to 25 A of PV.
    ...or just get a 150 Amp main breaker = up to 50 A of PV.

    I tie in to centerfed panels and usually the inspector has no issue.
    I am...
  17. Replies
    16$$
    Views
    768

    JaggedBEn, I agree with your excellent points. ...

    JaggedBEn, I agree with your excellent points.

    One little hair I'd like to split:
    I, also, used to say "well it isn't ever gonna be sunny (=high V) and be record cold simultaneously".

    In fact,...
  18. Thread: fire on pv systems

    by Zee
    Replies
    20$$
    Views
    966

    On a solaredge system with dc optimizers strung...

    On a solaredge system with dc optimizers strung together in a string as opposed to the modules......
    where is the AFCI: optimizer or Inverter?

    If in the optimizer, couldn't that be a great way...
  19. Thread: fire on pv systems

    by Zee
    Replies
    20$$
    Views
    966

    "thermal event" :p I don't think those companies...

    "thermal event" :p
    I don't think those companies got burnt..... they were, ummmm, "thermally event"-ed...:dunce:
  20. Thread: fire on pv systems

    by Zee
    Replies
    20$$
    Views
    966

    Yes, good to know. I have seen the module j...

    Yes, good to know.
    I have seen the module j boxes burnt, and the problem is in that area. I am first to admit i was a big fan of BP solar for a while.....i have a couple systems being replaced.
    ...
  21. Thread: fire on pv systems

    by Zee
    Replies
    20$$
    Views
    966

    fire on pv systems

    Thought this may spark (ahem!) discussion.

    http://www.ktvu.com/story/27350083/customers-complain-of-dangerous-problems-from-bp-solar-panels

    Wouldn't the AFCI .....now standard...prevent this?
  22. Thread: downsize neutral

    by Zee
    Replies
    6$$
    Views
    545

    thanks guys, I will go with a number 10 egc and...

    thanks guys,
    I will go with a number 10 egc and match that size in the neutral.

    Inv. Is transformer less and ungrounded so I'll forgo a GEC.
    Ggunn, thanks for the original reply.
    jaggedben,
    I...
  23. Thread: downsize neutral

    by Zee
    Replies
    6$$
    Views
    545

    downsize neutral

    Does the Code permit me to downsize the neutral on an inverter output circuit? What section? To what size?

    Specifically: 11.4 kw inverter @ 240 VAC = 47.5 A @ 125% = 59 Amps ===> 6 AWG wires.
    ...
  24. Thread: 150 mph equipment

    by Zee
    Replies
    6$$
    Views
    535

    From prosolar.com: "ProSolar works with ...

    From prosolar.com:
    "ProSolar works with all major solar manufacturers to ensure systems are fully engineered and tested. This has resulted in zero...
  25. Thread: Bare Copper

    by Zee
    Replies
    8$$
    Views
    957

    I agree with Jaggedben: use insulated wire in...

    I agree with Jaggedben:
    use insulated wire in conduit and bare wire under array.

    Details:
    1. If the lay in lug on your bonding (grounding) bushing is rated for double lugging then transition...
Results 1 to 25 of 200
Page 1 of 8 1 2 3 4