Westinghouse i4500 Generator
I posted a few weeks ago about trying to run my AC with a Yamaha 2k genny and Magnum 3000W boost inverter. Sort summary - the Yamaha just wasn’t strong enough with surges to work. So now I’ve pur...
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Gdetrailer- EE, used to manage engineering in semiconductors and then medical devices. I understand the points you’re trying to make. Can’t say the generator waveform *can’t* be involved in the issue; but neither I nor Magnum tech suspect that at this point. Given this appears only surge related it’s not the chronic waveform integrity, but probably is acute waveform related (not stairstepping, but gross surge variation) in genny andhow Magnum sync/boost circuitry handles it. Magnum tech agrees this is not the expected performance of the inverter.
LittleBill - Magnum performs as advertised on shore power. I can throttle incoming current down and inverter load support will add to that as expected. True of resistive load support (wife’s hairdryer) or inductive (AC with large inrush).
I have another call with Magnum tomorrow. What I know right now is that the Magnum inverter performs as expected with shore power. With two different generators (including Yamaha “high end”) the Magnum inverter has a difficult time with inductive loads syncing with generator (need to reverify it works properly with hair drier boost, but pretty sure that was the case). Pretty sure my application is on the ‘hairy edge’ such that I can get AC to run on the generator with enough attempts, including under different parameteric conditions, but it’s not deterministic. Unfortunately the Magnum input checking circuitry kicks generator out and won’t pass thru power when not even using boost. When using load support feature the worst part is that not only does the inverter kick the genny power out, but somehow in doing that it sets up a current draw condition that it also overloads (~400A) and faults the Magnum.
I’m starting to suspect that this might be a design issue with Magnum such that I just need to get soft starts, but didn’t want to spend $600 more.
Magnum techs are puzzled, they agree this is anomalous behavior but don’t understand how it could be unit defect, or design flaw yet.
If anyone has experiences with Magnum load support of ACs using a generator that could be beneficial in this troubleshooting
Thanks
LittleBill - Magnum performs as advertised on shore power. I can throttle incoming current down and inverter load support will add to that as expected. True of resistive load support (wife’s hairdryer) or inductive (AC with large inrush).
I have another call with Magnum tomorrow. What I know right now is that the Magnum inverter performs as expected with shore power. With two different generators (including Yamaha “high end”) the Magnum inverter has a difficult time with inductive loads syncing with generator (need to reverify it works properly with hair drier boost, but pretty sure that was the case). Pretty sure my application is on the ‘hairy edge’ such that I can get AC to run on the generator with enough attempts, including under different parameteric conditions, but it’s not deterministic. Unfortunately the Magnum input checking circuitry kicks generator out and won’t pass thru power when not even using boost. When using load support feature the worst part is that not only does the inverter kick the genny power out, but somehow in doing that it sets up a current draw condition that it also overloads (~400A) and faults the Magnum.
I’m starting to suspect that this might be a design issue with Magnum such that I just need to get soft starts, but didn’t want to spend $600 more.
Magnum techs are puzzled, they agree this is anomalous behavior but don’t understand how it could be unit defect, or design flaw yet.
If anyone has experiences with Magnum load support of ACs using a generator that could be beneficial in this troubleshooting
Thanks
