Logic for Compensation and Normalization
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Figure 7-22
Cross-Stage Functionality
Measuring-Point Selection
With the MP selection parameter, you can select from a list of measuring points a 1-phase measuring point
that is connected to the I Unbalanced interface in the Capacitor bank function group. The Current-unbal-
ance protection for capacitors, 1-phase function processes the 1-phase current that is connected to the
measuring point.
For more information, refer to the description of the Capacitor bank function group starting from chapter
5.4.1 Overview.
Measurands, Method of Measurement
The function receives its measurands via the I Unbalanced interface of the Capacitor bank function group.
The compensated and non-compensated unbalanced currents are provided for the overcurrent-protection
stage. Within the protection stage, one of the 2 values is selected in the protection stage via the parameter
Measured value. Both values are available as functional measured values (see Figure 7-22).
Capacitor Bank Protection
7.5 Current-Unbalance Protection for Capacitors, 1-Phase
SIPROTEC 5, Overcurrent Protection, Manual 1003
C53000-G5040-C017-8, Edition 07.2017
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