Hello guys,
during the planing we did not sonsidered Voc @ very low temperatures.Assuming that might happen the Max MPPT votlage will be reached or even exceed by 30V.
Unfortunatlly to change the inverter setup to accomodate higher voltage version is a bit tricky (need to change from LV to HV battery system). Is there a reasonable way to mitigate the potential high Voc event ?(actually I udnerstood that should be empty battery, ultra low temp) Maybe a TVS diodes , or something elve ?
My actual VoC on the PV string is around: 540V @ 0°C , Inverter Max is around 580V. Theoretical calculation seems to result in voltage ~630 under worst case condition.
I would like to avoid to re-do the PV panel wiring, so the idea about the TVS to surpress the potential Voc going above 580V.
any ideas ?
during the planing we did not sonsidered Voc @ very low temperatures.Assuming that might happen the Max MPPT votlage will be reached or even exceed by 30V.
Unfortunatlly to change the inverter setup to accomodate higher voltage version is a bit tricky (need to change from LV to HV battery system). Is there a reasonable way to mitigate the potential high Voc event ?(actually I udnerstood that should be empty battery, ultra low temp) Maybe a TVS diodes , or something elve ?
My actual VoC on the PV string is around: 540V @ 0°C , Inverter Max is around 580V. Theoretical calculation seems to result in voltage ~630 under worst case condition.
I would like to avoid to re-do the PV panel wiring, so the idea about the TVS to surpress the potential Voc going above 580V.
any ideas ?