The correct sign for the power measurement is dependent on the correct Power Flow Direction setting.
When power flows through the switchgear from source to load, it is deemed to be positive power flow.
When power flows through the switchgear from load to source, it is deemed to be negative power flow.
As the switchgear can be installed on a pole with either side connected to the source of supply, this setting must be checked as part of the commissioning procedure.
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