Stage Description - Siemens 7SJ82 Manual

Stage Description

6.30.3
Logic of the Stage
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Figure 6-206
Method of Measurement
The stage uses the positive-sequence voltage. The positive-sequence voltage is calculated from the measured
phase-to-ground voltages according to the defining equation.
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Logic Diagram of the Stage Undervoltage Protection with Positive-Sequence Voltage
Protection and Automation Functions
6.30 Undervoltage Protection with Positive-Sequence Voltage
751