Doc# E107706 7- 4
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
7: Transformer Loss Compensation
Loss Compensation is applied to 1 second per phase Watt/VAR readings and, because
of that, affects all subsequent readings based on 1 second per phase Watt/VAR read-
ings. This method results in loss compensation being applied to the following quanti-
ties:
• Total Power
• Demands, per Phase and Total (Thermal, Block (Fixed) Window, Rolling (Sliding)
Window and Predictive Window)
• Maximum and Minimum Demands
• Energy Accumulations
• KYZ Output of Energy Accumulations
NOTE: Loss Compensation is disabled when the meter is placed in Test Mode.
7.2: Nexus® 1250/1252 Meter's Transformer Loss Compensation
The Nexus® meter provides compensation for active and reactive power quantities by
performing numerical calculations. The factors used in these calculations are derived
either:
• By clicking the TLC Calculator button on the Transformer Loss screen of the Device
Profile, to open the EIG Loss Compensation Calculator in Microsoft Excel
• By figuring the values from the worksheet shown here and in Appendix A of the
Communicator EXT
TM
4.0 and MeterManager EXT Software User Manual.
Either way, you enter the derived values into the Communicator EXT
TM
software
through the Device Profile Transformer and Line Loss Compensation screen.
The Communicator EXT
TM
software allows you to enable Transformer Loss Compensa-
tion for Losses due to Copper and Iron, individually or simultaneously. Losses can
either be added to or subtracted from measured readings. Refer to Appendix A in the
Communicator EXT
TM
4.0 and MeterManager EXT Software User Manual for instruc-
tions.
Loss compensation values must be calculated based on the meter installation. As a
result, transformer loss values must be normalized to the meter by converting the
To Next Page
Loading...
