My information from the manufacturer is that my MK model does have a fixed bridge. Again it's not a major concern for me but if it becomes one, I'll consider installing a MEN and manually open and close the bridge as required.
Does anyone know if the bridge is a removable busbar (that can be...
I didn't worry about it as I only wanted to plug the inverters in once to commission and charge the battery pack. It's for a boat that will very rarely be plugged in to a mains socket.
Note that when I initially used one 5048 it did work as a charger while downstream of the RCD. It was only...
A similar reply regarding their MPI models:
"sorry for the late reply. there's a menu in the monitoring software SolarPower that can adjust this.
In Solarpower under setting “Shorten N/G relay in battery mode” if it is “Enable.”
If “Enable”, inverter will short N/G in Batter...
If you link parallel cells first then series them you will need very large busbars because there is only one busbar after each parallel group and these take all the output current.
If you build series packs first, then link them, each series string shares the load. Each string then only...
For everyones reference, I've attached messages to&from PIP.
Is there a Neutral/Earth bridge within 5048MKs? If so, is the link automatic (depending on conditions) or configurable?
I have two new 5048MKs wired with parallel kits. When AC IN is connected to a power...
I'm also setting up a solar generator system for my boat. I've used two PIP 5048MKs and 48 280ah Lifepo4 cells. Note that it's a pretty big system because it's a 54ft live aboard ex commercial trawler. Loads are a residential galley, dive equipment and a 7.5kw anchor winch (only intermittent...
Thanks. I've wired the AC Input Active, Neutral & Earth to a normal house GPO ie after the RCD.
My understanding is that when the 5048MK sees an incoming AC current it opens the internal G/N bonds on both inverters to make use of the house's at the switchboard...?? I suspected that the house...
I have just connected my second PIP5048MK in parallel using the OEM parallel board and cables to find that whenever the Utilities mains is connected my house RCD trips.
I originally had one 5048MK connected direct to the mains to charge and test the batteries and had no problems. It's only...
Thanks. The end use isn't actually a residential or Powerwall installation. It's to replace two 35 and 10kva generators on a boat.
The whole package is:
5kw solar panels
48*280ah Lifepo4 for 43kwh at 48v
2*PIP5048 inverters for 10kw 230v single phase
15kw 230v VFD to power a 3 phase hydraulic...
Thanks guys. Yes, my operating range will be around 3.00 to 3.40 per cell. Having said that, I would like to top balance all cells once at 3.60 so that I have a margin of safety knowing that one cell won't be over charged should pack voltages over shoot for what ever reason.
All cells have...
I've received 48 280ah Eve Lifepo4 cells. I'm attempting to balance them all in parallel at 3.40v using my 20a power supply. However, the parallel string is only accepting ~8a at 3.40v.
The batteries were received at 3.30/.31v with two at 3.28v. Charging at 3.50v gives ~15a, 3.60v gives the...
I am investigating installing two PIP 5048MKs in parallel into a motor boat.
The vast majority of power input is expected to be from solar and battery storage. Occasional top ups will be provided on an as needed basis from an onboard 4kw generator or 240v 15a shore power.
Does the 5048MK have...
I'm looking to build a 15kwh battery pack using used e-vehicle modules. Leaf batteries are significantly cheaper than Tesla's at face value. However, the Leafs are sold as ~60% of original capacity and the few actual capacity tests I can find put this as a typical level in the real world.
Additional info from MPP techs:
"In Solarpower under setting Shorten N/G relay in battery mode if it is Enable.
If Enable, inverter will short N/G in Batter Mode(Off-Grid) and open N/G if out of Battery Mode.
If Disable, inverter wont short N/G under any Mode.
Should you have any other...
Many thanks Dovepark. This is exactly what I was seeking.
Looks like I can rely on:
the shore 'mains' power connection providing an unbroken G/N bridge
The MPP providing an internal G/N bridge when operating as a battery inverter only
My generator providing a G/N bridge when it is connected...
Just and FYI. I've received thos reply from MPP:
"by default, under inverter mode the output N and G will automatically bind. under bypass it'll depend on the AC input. If input N/G already short, then output will be short, too.
-Maximum Solar Taiwan"
I take it to mean...
Thanks guys. That's very helpful.
I've contacted MPP to check on their inverters but to date no reply. Does anyone know how they treat bonding? Is it fixed or auto/configurable based upon power source?
Would someone please explain to a noob how Earth Neutral bonding occurs in hybrid inverters that can potentially have many different power sources, each of which should have bonding connected differently.
Is bonding automatically (dis)connected by the inverters as required during off grid...