ION 8000 Series User Guide Transformer Line Loss Compensation (TLC)
Chapter 13 - Revenue Page 149
Transformer Line Loss Compensation (TLC)
Transformer Loss Compensation is used when a meter’s actual location is different
from the electrical location where change of ownership occurs; for example, where
meters are connected on the low-voltage side of power transformers when the
ownership change occurs on the high-side of the transformer. This physical
separation between meter and actual billing point results in measurable losses.
Compensating for this loss - Loss Compensation - is the means of correcting this
meter reading. Losses may be added to or subtracted from the meter registration.
Meters are usually installed on the low-voltage side of a transformer because it is
more cost-effective. There are also cases where change of ownership may occur
halfway along a transmission line where it is impractical to install a meter. In this
case, power metering must again be compensated.
CAUTION
Due to the variation in installations, advanced knowledge of power systems and connection methods is
required before transformer loss compensation can be properly implemented. Data parameters should
only be programmed by qualified personnel that have appropriate training and experience with
Transformer Loss Compensation calculations.
For more information, see the latest version of the Transformer Line Loss
Compensation technical note.
Configuring TLC
Use ION software to change your meter’s TLC settings.
Using the Front Panel
You cannot configure Transformer Line Loss Compensation using the front panel.
Using ION Setup
The Revenue Setup Assistant helps you configure TLC. The Transformer Loss
screen allows you to enable/disable TLC, choose which method you prefer (1 or 2)
and configure TLC settings.
1. Open ION Setup and connect to your meter, using Basic Mode.
2. In the Setup Assistant, navigate to Revenue > Transformer Loss
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