PLEASE NOTE: If you had an account with the previous forum, it has been ported to the new Genetry website!
You will need to reset the password to access the new forum. Click Log In → Forgot Password → enter your username or forum email address → click Email Reset Link.
You can see some of the transformers he's wound at his "hello" thread:
<iframe allowfullscreen data-embedauthorid="14" data-embedcontent="" data-embedid="embed1986755934" scrolling="no" style="height:394px;max-width:500px;" data-embed-src="/topic/27-hello-from-wv/?do=embed">
The transformer in my house inverter isn't super easy to see here...and Ben likes to call it an "ugly transformer." All I know is that it works great 😉
My inverter definitely won't win any internal beauty contests...but it works, and that's what matters 😉
(and yes, that's the first-gen hand-soldered balancers that have been on my LFP bank since shortly after I made it. Been almost 4 years with absolutely no issues.)
Here's another tranny that Ben custom-wound for a customer:
<fileStore.core_Attachment>/monthly_2021_03/image.png.8ab2af17783a7f9531c9a9e222b32238.png
This one was for a ~60v nominal system.
yes, it is an 8000 watt 24-volt LF PSW with LCD screen 10.3 ASL4 direct from china powerjack inverter (With an advertised 32000watt surge capability) ha ha. I still need to build a support shelf as it weighs over 47 pounds. and a bit over 25 inches long.
but too heavy for the light duty shelf bracket i use for the 6000 watt one.
(nothing in comparison to my 164 pound 20,000 watt powerjack inverter but it is a 48-volt monster.)
any ideas on how to make a remote switch for it? i need to be able to turn it off remotely when the lifepo4 battery gets too low.
On 3/24/2021 at 2:44 PM, Sid Genetry Solar said:You might try adjusting the "DC Volt" knob on the front, and see if it does what you need. Gotta love PJ, all that knob does is adjust the battery voltage feedback into the CPU--which of course adjusts EVERY battery voltage setting (UVP, OVP, charge, transfer, etc.) simultaneously. But if you're only really concerned about UVP (undervolt protection), then this knob might just get you what you need.
Keep in mind that there is no automatic restart. An error will shut the inverter down until you manually power cycle it--unless you automate the power switch 😉. Power switch comes from battery positive, but it's a low power signal...thus should be very easy to switch if you cook up some external system to control it (or auto reset it 😉)
i need to do it at the switch so the Electrodacus SBMS0 can turn it off and back on if the voltage of any cell in the lifepo4 battery gets too low(to prevent battery damage from overdischarge), can you tell me more how to do this? i will go take another peek at the switch. it goes both ways but i always push it to the always on direction.
i will go take another peek at the switch. it goes both ways but i always push it to the always on direction.
If you want to wire a "disable relay" in there, just put the (normally closed) contacts in series with the middle wire of the switch (that's the Common terminal). If the relay's actuated, the inverter will be shut down. (Or use the normally open relay contacts for the inverter to only be on if the relay's on.)