Diagnosis
The Device Not Relevant for Billing indicator isselected for power transformer &v1& in the period from &v2& to &v3&.Power transformer losses are not calculated during this period.
This presupposes that the consumption registers assigned to the powertransformer do not measure consumption during this period. However, thesystem found a consumption value greater than zero.

System Response
The system cancels billing.

Procedure
Check the meter reading results for the registers assigned. Enter ameter reading result for the date on which you selected the DeviceNot Relevant for Billing indicator for the power transformer.
Also enter a meter reading result (with the same register reading
) for the date for which you remove the indicator from the powertransformer.