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.
The box says it's an ASL2
Can you still return for the PJ 12kw that you order ? Can this inverter run a refrigerator and freezer and maybe a 1/2 hp well pump ?
Runs my lights fridge tvs cooler and microwave without issue
Haven't tried it on the well pump but the better FETs it might I haven't tried it as I'm not sure I'm keeping it
If I keep it the top plate, center bolt and rubber is coming off the transformer so it can get air flow
Runs my lights fridge tvs cooler and microwave without issue
Being able to run the microwave about 3000 watts is probably equal to what a 12000watt AMG PJ inverter can barely do . IF running a microwave and fridge at the same time is about 4000 watts so your inverter is better than most AMG . IF it run a well pump then for sure PJ done something good . Thank you for the information as you have a good main board and control board .
Oh come on @dickson....
Microwave: 1500W
Refrigerator: 100W (average). OK, I'll give you 150W.
total 1650W. Peanuts.
total 1650W. Peanuts For new microwave and fridge that use less wattage .
Mine appliance are over 20 years old and use more wattage . I like to see the AMG 8000w inverter run a well pump .
It was also running the cooler 1/2h but it beeped when the motor started
Had my Upower 10K running all the same loads without much issue
It was also running the cooler 1/2h but it beeped when the motor started
Is there a notice on the inverter that advises buying a "power choke" to safely start motors?
Haven't tried it on the well pump but the better FETs it might I haven't tried it as I'm not sure I'm keeping it
I would return it because the upower run without issue and do not need a power choke . Your upower should start a well pump so get something like the upower .
The notice for a power choke show there is a design flaw in starting inductive load .
Mine appliance are over 20 years old and use more wattage .
I've had appliances the same age...domestic microwaves simply don't run over 1,500W (max 1,650W) due to 120v circuit limitations.
And regular domestic refrigerators simply don't use over 150W continuous for the compressor. Most of the time, they run under 120W. There is absolutely no way a domestic 'fridge will use 1,000W continuous in normal operation.
@dicksonYou need to get your facts straight...all of your technical nonsense on the forums is getting quite annoying.
Both my units have the choke warning
I blew up the upower starting the well but they sent me the parts so it runs again
3 hours ago, Steve said:Both my units have the choke warning
I blew up the upower starting the well but they sent me the parts so it runs again
I'm going to open up my PJ AMG 8000 to read the FET value. Your inverter has one more cap, and I'm curious to see if they put "better" FETs in your unit. People tell me caps can be added to these main boards, but maybe higher level MOSFET boards are available, too. The regular MOSFET boards for my unit are $25 ea.
36 minutes ago, RobertM said:I'm going to open up my PJ AMG 8000 to read the FET value. Your inverter has one more cap, and I'm curious to see if they put "better" FETs in your unit. People tell me caps can be added to these main boards, but maybe higher level MOSFET boards are available, too. The regular MOSFET boards for my unit are $25 ea.
I will note, that no chain is stronger than its weakest link.
- For continuous loads, the undersized transformer is the issue
- For surge loads, the poor MOSFET drive is the issue
- For loads that cause a red light and error, the control board / firmware is the issue
Putting more expensive FETs in a PJ inverter will just make the smoke more expensive.
But seriously now, if there's 6x FETs/board, they're likely rated somewhere near 100A each (at least that's the TO-220 package limit!) So 600A * 24v = 14,400W should be a safe continuous maximum for the FETs (not sure about the internal wiring or PCBs though!) 14,400W / 240v = 60A on the output (not counting losses). Obviously, however, the inverters can't reach this without blowing up. My point is that the FETs aren't necessarily the issue.
For example, it doesn't matter how many horsepower your gas engine is rated for, if the spark plug wires are shorting out and the timing's wrong! It'll run very poorly, and maybe even blow up if pushed hard. But that doesn't necessarily indicate a bad engine, as much as a poorly-controlled one.
34 minutes ago, Sid Genetry Solar said:I will note, that no chain is stronger than its weakest link.
- For continuous loads, the undersized transformer is the issue
- For surge loads, the poor MOSFET drive is the issue
- For loads that cause a red light and error, the control board / firmware is the issue
Putting more expensive FETs in a PJ inverter will just make the smoke more expensive.
But seriously now, if there's 6x FETs/board, they're likely rated somewhere near 100A each (at least that's the TO-220 package limit!) So 600A * 24v = 14,400W should be a safe continuous maximum for the FETs (not sure about the internal wiring or PCBs though!) 14,400W / 240v = 60A on the output (not counting losses). Obviously, however, the inverters can't reach this without blowing up. My point is that the FETs aren't necessarily the issue.
For example, it doesn't matter how many horsepower your gas engine is rated for, if the spark plug wires are shorting out and the timing's wrong! It'll run very poorly, and maybe even blow up if pushed hard. But that doesn't necessarily indicate a bad engine, as much as a poorly-controlled one.
OK, then. I seem to remember Ray Jungle Power on Ebay claiming (before he vanished) that PJ used only top quality western transistors. I'm making progress towards another pump test. I'm connecting the super capacitor bank in a better way. I will use 8 gauge copper cable, which is about the diameter of the terminal holes and just solder as securely as possible. It consists of 12 350F in series. I will charge it to the same voltage as my combined lead-acid and LiFePO4 (~ 20A at 230V) battery bank. By my calculations, the supercaps should provide an additional 2.5A @ 230V boost for 5 seconds. My guess is that, in the earlier test, the inverter shut down due to voltage sag.
It pumped for a few seconds, then shut off with a red light.
A few points on this
My upower is a 24v unit with 80A fets 6ea
That's 11.5KW if it was driving a square wave as a surge load if everything was perfect
That makes the fets a definite weak point for surge loads.
The ASL2 transformer doesn't dissipate heat well limiting the continues load but not the peak.
Poor drive will cause poor efficiency as the junction resistance will be higher than it should during transition time