42OhmsPA
What's in a title?
Yesterday the grid was down for around 7 hours, only the 3rd time this month...
Batteries were down to ~51V. (snow and no sun)
I hooked the generator (5.5kw Generac gas) up to the TP6048 (LVX6048) utility input and was able to start charging the batteries after adjusting the time settings for utility charging and switching from SBU to SUB.
I started with 10 amps and stopped at 70a to give the generator some headroom for the rest of the house. It was interesting seeing the frequency of the generator shift as I loaded it up more....
I let the batteries charge for around 2.5 hours before I switched things back to battery. I think this was my screw up...
I went into the inverter settings and switched back to SBU, the house went dark and the inverter started yelling at me. Iirc there was a fault 06 on the screen, the laptop lost power since the battery has been shot for years... Once I got the inverter powered back up and things working off the batteries again I was able to pull an output voltage to high from the event log. I also found a tripped GFCI outlet upstairs.
Wow that's a lot of text.
What I think happened - when I switched back to SBU the generator output voltage spiked since I took such a large load off so abruptly; the inverter saw this and shut down.
I think I should have slowly reduced the charging current back to 10a then killed the breaker for the generator then switched back to SBU...
Can anyone confirm? Possibility of a big storm at the end of the week so I'll likely be charging from the generator again.
Note - I'm also going to get a 120v dedicated charger ordered so I can use my smaller inverter genny and charge the batteries by connecting the charger to the buss bars, avoiding all the hoopla...
Thanks if you've made it through all that and can offer any feedback.
Attached photos are DC side charging amps and AC side generator load amps.
Batteries were down to ~51V. (snow and no sun)
I hooked the generator (5.5kw Generac gas) up to the TP6048 (LVX6048) utility input and was able to start charging the batteries after adjusting the time settings for utility charging and switching from SBU to SUB.
I started with 10 amps and stopped at 70a to give the generator some headroom for the rest of the house. It was interesting seeing the frequency of the generator shift as I loaded it up more....
I let the batteries charge for around 2.5 hours before I switched things back to battery. I think this was my screw up...
I went into the inverter settings and switched back to SBU, the house went dark and the inverter started yelling at me. Iirc there was a fault 06 on the screen, the laptop lost power since the battery has been shot for years... Once I got the inverter powered back up and things working off the batteries again I was able to pull an output voltage to high from the event log. I also found a tripped GFCI outlet upstairs.
Wow that's a lot of text.
What I think happened - when I switched back to SBU the generator output voltage spiked since I took such a large load off so abruptly; the inverter saw this and shut down.
I think I should have slowly reduced the charging current back to 10a then killed the breaker for the generator then switched back to SBU...
Can anyone confirm? Possibility of a big storm at the end of the week so I'll likely be charging from the generator again.
Note - I'm also going to get a 120v dedicated charger ordered so I can use my smaller inverter genny and charge the batteries by connecting the charger to the buss bars, avoiding all the hoopla...
Thanks if you've made it through all that and can offer any feedback.
Attached photos are DC side charging amps and AC side generator load amps.