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  • Post in thread: Shunt snapped and caused a fire🔥

    First off, I'm sorry for your loss; this looks obviously expensive. A few points: - A few people brought up the breakers. Although not the root cause here, AC breakers don't work in DC environments. It's not a matter of over-current protection, an AC breaker will trip if overloaded with DC...
  • Post in thread: Is there a problem with my PV setup? Dual MPPT w different orientations & sizes show near identical power.

    It looks likely that the panels have been connected to the MPPT inputs with even distribution. 8 on the first, 8 on the second. Your roof has 3 panels on one facing and 13 on the other - crucially with different orientations. This is breaking design rules: 1. All panels connected in series...
  • Post in thread: XW Pro Primary/Secondary load imbalance with v2.04? [RESOLVED]

    Final update: It's resolved, but the HOW is amazing... I have been watching my daily operations with diligent scrutiny, while resisting the urge to intervene and change setpoints. After day's worth of observation, this problem of imbalance wasn't actually resolved, and crept back into...
  • Post in thread: Schneider XW PRO 6k questions

    I have an external whole-house AC transfer switch and all loads on a sub-panel, so I don't use the sliding bypass block-off plates the PDPs come with. This is what a fairly populated full-PDP looks like.
  • Post in thread: Schneider XW PRO 6k questions

    There's a caveat to the charge window you'll figure out. It doesn't work like an enable/disable, but rather as a window during which hitting the "Recharge Voltage" is ignored or not. The charger will still run the entire course of your charging cycle even if the window is exceeded...
  • Post in thread: No magic smoke, but no $ savings because I played with AC charging.

    A few factors to consider related to outages: - Outages are more likely during bad weather where PV isn't productive. - In an emergency, your power consumption metrics won't look like the daily usual because you'll be in an emergency conservation mindset and only powering just the essentials -...
  • Post in thread: Need some advice on schnieder 100 600charge controller and panel array setup

    Sizing one of these out, there are a few limits to stay within and be aware of. (Note that the following specifications are only for the Schneider MPPT 100 600, as the 80 Amp model has the same MPPT Voltages but lower current limits.) - PV Array MPPT Voltage Range: 195-510 Volts. Use the...
  • Post in thread: Is there a problem with my PV setup? Dual MPPT w different orientations & sizes show near identical power.

    When wiring the panels in series you can take Voc (Open Circuit Voltage) of the panel rating and multiply it by the number of panels to get a maximum string voltage, and then add a safety margin of 5-10%. (That margin varies depending on climate and installation orientation. It comes from the...
  • Post in thread: Feeding 48v, stepped up from 12v battery, intopower station MPPT SCC input?

    I can give you some background on the mode of operation of an MPPT. Maximum Power Point Trackers utilize the voltage vs. current output curve characteristics of the PV array to regulate their output to the battery. A PV specification label provides details from which a power output curve can be...
  • Post in thread: Solar Panels on a Tesla

    Does urinating into a swimming pool raise its level? Technically, "yes", but... The range of a car most effectively be extended by lowering its weight and/or drag. I would bet money that dropping the suspension 1", adding 5psi to each tire, and replacing the side mirrors with cameras (which...
  • Post in thread: Schneider XW PRO 6k questions

    Thank you! Upgraded to Build 41 of v1.18 yesterday and for the first time in an Insight upgrade ever, it didn't default my network settings. XW Pro v2.10 is still mentioned in the release notes.
  • Post in thread: Using Super Caps after a DC-DC to supply inrush current on inverter

    As of last night, the Super-Capacitors are up and running preliminarily, and I already have some amazing observations. This pack is x24 of Nesscap 3500F 2.7V super capacitors. Total capacity works out to 145 Farads at a maximum of 64.8V, and that's enough safety margin for my 62.4V FLA...
  • Post in thread: Schneider XW Pro rant: AC1 Charging and AC Passthrough

    Any time the chargers are active the inverter will be in Pass-Through mode, and that's why setting 3-stage charging on them is not a default or recommended configuration - it will just float the batteries and never go into Grid-Support mode. I also run XW Pros in a self-consumption zero-sell...
  • Post in thread: Supercapacitor Pre-Charge/Discharge DIY Circuit

    Recently a bank of 24 Nesscap 3500F Supercapacitors was added to my system to assist with DC ripple and surge loads. Although a big investment, their performance and the preservation of battery longevity they provide is worth it, in my opinion. These capacitors will easily pass 1500 Amps and...
  • Post in thread: Schneider XW PRO 6k questions

    Sure, and you can put another DC breaker into the Mini-PDP for your Victron. The breakers that fit are available in 60, 80, 100, and 125A
  • Post in thread: AC or DC generator?

    There is a more potential for efficiency making rectified and regulated DC. Utilizing AC directly from the windings of an alternator (erroneously called a "generator" in the consumer market) required a constant RPM to maintain the frequency, regardless of load. Making DC you can bring RPM, and...
  • Post in thread: Supercapacitor Pre-Charge/Discharge DIY Circuit

    I might use this thing maybe 5 times in the rest of my life. I have no intention of needing to shut down the DC bus, but if I do need to disconnect the capacitors for any reason, I need to be able to do it safely. It doesn't need a PWM controller or any complexity, it just needs to be ready to...
  • Post in thread: Schneider XW PRO 6k questions

    PDP or Mini PDP isn't needed, but the functionality it provides would need to be accommodated by other components. Inverter and MPPT DC Breakers, DC busbars, AC breakers for the inverter input and output. The Mini PDP comes with the AC breakers for input/output/bypass and a 250A DC breaker for...
  • Post in thread: So I am going to try my hand at reconditioning lead acid batteries...

    The solution to pollution is dilution.
  • Post in thread: Schneider Conext SW 4048 does NOT list Lithium as battery option. Why?

    As JoeHam mentioned, custom battery type is what you'll have to use. Just typing as I think here, I come up with a few things to be cognizant of: - Lead Acid can be recharged in a less-regulated manner than LiFePO4 because there is a more pronounced voltage rise as state of charge in the pack...
  • Post in thread: Possible way to improve inverters ability to start large loads ? Car stereo big capacitor.

    Pulled the trigger on x24 2.7V 3500F Nesscap supercapacitors. Will be building a custom box or something to hold them, and connecting to PDP DC bus through a 250A Schneider breaker, and a charge/discharge resistor circuit. Should be here the third week of September. Will report back.
  • Post in thread: Signature Solar EG4 Battery Rack Delays

    One problem here is that there is a "bundle" price that is lower than if the individual parts were purchased separately. It isn't possible to break down the individual item costs that shipped because it's one single cost to the consumer. That also means it's not easily possible to refund you...
  • Post in thread: Schneider XW Pro commission

    A few items: I think that this is too many devices for the single XANBUS on an Insight Home. You're going to need Insight Facility for this because it's got 2 XANBUS networks. I'd probably put the MPPTs and Disconnect RSs on one, the 2 XW Pros, AGS, and BattMon on the other. A characteristic...
  • Post in thread: Feeling cute today, may build a 480V battery later. .

    Apologies to OP for the tangent, but this discussion is very cool! I have a passionate regard for Nikola Tesla. I'd call him a true genius "inventor", as he worked out entire functional systems of everything in his head, he knew when they'd work, all before he ever put pen to paper about it...
  • Post in thread: what voltage should be?

    3.65v per cell, 4 cells per 12v pack, 2 in series = 29.2v
  • Post in thread: XW Pro - charge/discharge in loop when voltage goes below 52

    This might help with some of the voltage setpoints. It's a slide I pulled from one of Schneider's videos that explains the points at which the XW Pro changes modes internally. The LBCO+1.0V is not a clearly documented setpoint, for example, and you cannot see it or change it but it is there.
  • Post in thread: Feeding 48v, stepped up from 12v battery, intopower station MPPT SCC input?

    Edit: thinking about this more, you might run into a problem with MPPT, assuming the MPPT function can be disabled in favor of a hard-set voltage, where the "PV" input voltage from the DC converter might not adequate at 48V. I saw you mention the 32-95V input spec of the MPPT, but generally the...
  • Post in thread: XW Pro Primary/Secondary load imbalance with v2.04? [RESOLVED]

    I'm posting an explanation of my methodology and what I've done to finally resolve this problem. With Inverter 2 behaving erratically, I figured getting a clear picture of exactly what functionality is affected would be a necessary prerequisite to opening a trouble ticket if I was to go that...
  • Post in thread: Old XW6048 system, change from AGM to Lithiums - I have a minor quirk!

    A lot of the time blocks that now exist in the XW Pro weren't added until later firmware, and without personal experience on the earlier XWs I can presume that those time block settings are missing from those. For example, it is possible to set a time Export Block in XW Pro which I'd guess you...
  • Post in thread: Schneider XW Pro generator connection progress

    ....digging up another post from a while back... The XWs won't take any more than they're rated to handle through the internal relays, just like they self-limit on AC1. That generator appears to have different output maximums for gas (18.75A) versus propane (17.81A). Assuming gasoline, I...
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