ares43

When I bought the inverter, it was initially connected correctly and there were no such indications after switching to bypass. I bought a pre-meter and when connecting the pre-meter, I confused the phase (l) with zero (0), at night, when the batteries ran out, it switched to bypass and by morning it had recorded 10 kWh, the consumption was about 2200W. During disassembly, I noticed the error and connected it correctly and the consumption decreased to about 1200W. The pre-meter and the electricity meter show the same. I measured all the resistor ladders, diodes and transistors and everything seems fine. theoretically, The question is, could the IGBTs have been partially damaged? Is the element responsible for the measurement (Op07c in the photo) damaged and is sending incorrect data to the processor? Today I connected the inverter to the battery, the consumption is 1.7A, does it seem correct? Then I connected the network and gave 220V to the input when I measured the output it turned out that there was no constant phase from L to ground OK 112V and N to ground 112V when battery powered constant phase is present. no ideas. Thank you very much for your interest in this problem and I am full of admiration for your knowledge and willingness to share it.

W trybie bypass, podwójny inwerter max11kw pobiera 1000 W 5 A. Uszkodziłem go, podłączając fazy ln i nl do zasilania odwrotnie. W momencie przełączenia na bypass, został uszkodzony. Ładuję akumulator z paneli, produkuję napięcie dla domu, ale w momencie przełączenia na bypass, pokazuje stałe obciążenie 5 A. Proszę o poradę, gdzie szukać uszkodzenia i przepraszam za mój słaby angielski.----IS THIS ELEMENT RESPONSIBLE FOR MEASURING THE AC NETWORK?