Display - Grid C Voltage
Description- Over-voltage protection of 125% of rated signal (Nominal value = 320/356 Vac)Trip level: 400/445 Vac > 1 msec
Resolution:
Inverter detecting over-voltage on its output
1. Check transformer taps for proper set-up ratio can indicate incorrect MV-transformer or mains’ transformer taps
2. Check inverter voltage-sense transformer TR1B wiring