Warning - GRF3

Thomas Garcia

Modified on: Thu, 24 Jan, 2019 at 7:31 AM

Display - Grid C Overcurrent

Description-

Over-current protection of 115% rated feedback. (Nominal value = 2706 A)Trip level: 3112 A >1 msec

Resolution-

Inverter sourcing too much current into the transformer/grid

1. Check transformer taps for proper set-up ratio can indicate incorrect MV-transformer or mains’ transformer taps

2. Check inverter current-transformer CTC wiring