ProtonWH
New Member
I like it! Was thinking about SSRs, these are very close...
Calling all Sparkies
- Thread starter ProtonWH
- Start date
ProtonWH
New Member
I could use the gen start up delay dry contacts from the transfer switch to delay switching over PV to the second hybrid inverter so I don't get the jitter jog issue
ProtonWH
New Member
And look ma no hands!
Here is one for $25. Uses 1.5W coil holding power.
batteryhookup.com
TE Connectivity EV200AAANA 500a 0-900vdc Tyco 12/24v
These were recovered from EV battery modules. These are VERY EXPENSIVE online. If you have any project that needs a high current relay this is your chance to save some money. Make a cheap 30a BMS into a 500a BMS. This will work for batteries in the 9-36v range so perfect for Lifepo4 and Lithium...
batteryhookup.com
Warpspeed
Solar Wizard
A bit of thought and planning should provide a pretty reliable and fool proof system.
If you read through the application notes, a 12v unit requires about 4 amps to pull in, but only a couple of hundred milliamps through a series resistor to hold in.
*edit* AntronX you beat me to it.
They require very little power to hold operated.
And if you are quick, some pretty good deals on used units recovered from junked electric vehicles.
I use one of these (genuine Gigavac) for under and over voltage battery disconnect on my 100v system.
If you read through the application notes, a 12v unit requires about 4 amps to pull in, but only a couple of hundred milliamps through a series resistor to hold in.
*edit* AntronX you beat me to it.
They require very little power to hold operated.
And if you are quick, some pretty good deals on used units recovered from junked electric vehicles.
I use one of these (genuine Gigavac) for under and over voltage battery disconnect on my 100v system.
Last edited:
sunshine_eggo
Happy Breffast!
FWIW, I bought two of those that I plan to use with my Batrium. They consume very little power and generate very little heat.
ProtonWH
New Member
Really? Could it be that simple? I OVER thought it? That's awesome!
Yes and if you turn on both inverters you can watch them fight over MPPT point. Not an optimal solution for normal operation but it should not hurt anything. But I should issue a disclaimer that I have not done this with high voltage MPPT inverters. I tried it with 2 Victron MPPT controllers at 60 volts and the little 75/15 unit confused the hell out of much bigger 150/60 controller.
ProtonWH
New Member
Would any of them throw audibles or visuals for MPPT error as a general setting or error condition?
See my added disclaimer in previous post.
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