ohmti787
Member
- Location
- Orlando, FL
- Occupation
- Electrical Engineer
If I have a 2+ string system and each string lands on a separate MPPT in the inverter, is that still consider a parallel connection point? If so, then each string would require a OCPD, correct? Just a little confused on what exactly is considered a parallel connection. Exception 1 on Article 690.9(A) states that OCPD's are not required if "there are no external sources such as parallel-connected source circuits, batteries, or backfeed from inverters". So if I'm reading this correctly, even if separate MPPT's are not considered parallel connections, that parallel connected source will always be present since all these MPPT's are integrated to the inverter, correct? Please advise. Thanks!