Warning - GRF7

Thomas Garcia

Modified on: Thu, 24 Jan, 2019 at 8:00 AM

Display - Grid Overcurrent

Description-

Software detected grid over current Trips if any phase > 3090 A >5 msec

Resolution-

Inverter sourcing too-much current into the transformer/grid

■ Possible PV Cloud-effect induced power-spike coupled to marginal tap settings and/or rapid grid-voltage drop (local excessive power demands)

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

2. Check inverter current-transformers CTA/B/C wiring