The current measured in Sub -2 side is 270 Amps in Line differential relay and 350 Amps in Metering panel.
The difference in the primary current in both side relays due to underground cable in the line.
Relay measure the line current and cable charging current separately.
RED 670 -ABB will shows both current in the measurement display.
Micom 546 consider charging current as a differential current.
One End current
Remote End current
Differential and Charging current
Note :
The power direction
Import should be (-ve)
Export should be (+ve)
If Micom 546 shows Export MW as a -ve value go to MEASURE'T SETUP - MEASUREMENT MODE and SET '0'
