Siemens 7SJ85 - Voltage Phase-Rotation Supervision; Overview of Functions; Structure of the Function; Function Description

Voltage Phase-Rotation Supervision
Overview of Functions
The Voltage phase-rotation supervision function monitors the phase sequence of the secondary-circuit
voltages by monitoring the sequence of the zero crossings (with same sign) of the voltages. This enables the
device to detect connections that were inverted during commissioning. The criterion for the check is the
setting of the Phase sequence parameter.
Structure of the Function
The Voltage phase-rotation supervision function is located in the Power-system data of each 3-phase
voltage measuring point.
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Figure 9-17 Structure/Embedding of the Function
Function Description
Logic
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Figure 9-18
Logic Diagram of the Voltage Phase-Rotation Supervision
9.3.7
9.3.7.1
9.3.7.2
9.3.7.3
Supervision Functions
9.3 Supervision of the Secondary System
1264 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017