NEN 1010 §712
Solar inverter
Omvormer (PV-omvormer / inverter)
Also known as: inverter, string-inverter
Device converting DC voltage from PV strings (typically 200-1000 V) to 230/400 V AC and synchronizing with the grid. Includes MPP tracker(s) per string, anti-islanding (LFSM-O/U), and must comply with NEN-EN-IEC 62109 + grid code RfG. Type: string-, micro- or hybrid (with battery port).
Practical example
Inverter (PV inverter). A string inverter with two MPP trackers controls two roof planes with different orientations separately, and switches off upon grid failure (anti-islanding).
Common mistake
Inverter (PV inverter) Common mistake: Connecting an inverter without valid grid code certification (RfG) to the grid — the DSO may reject it for feed-in.
See also
Related terms
In-depth guides
- → §712 Solar Power Systems (PV)
- → §712 PV installations — fire service switch and DC marking (§712)
- → §712 / IEC 60364-7-712 PV string Voc temperature correction — the maximum number of panels in series at low temperature
- → NEN-EN 50549-1 Anti-islanding protection for PV inverters — why the inverter must disconnect within 2 seconds (NEN-EN 50549-1)
- → NEN-EN 50549 (netondersteuning) PV inverter — grid-support functions: reactive power control and frequency-based power reduction (LFSM-O)
- → IEC 60947-6-1 Automatic Transfer Switch (ATS) for emergency power supplies (IEC 60947-6-1)
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