Stage With Definite-Time Characteristic Curve; Description - Siemens 7SJ82 Manual

Siprotec 5 overcurrent protection
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Stage with Definite-Time Characteristic Curve

7.6.4
7.6.4.1

Description

Logic of the Stage
[lo_peadef-230813, 1, en_US]
Figure 7-34
Measurand, Method of Measurement
The function calculates the peak voltage in a phase-segregated way from the fundamental component and
superimposed harmonics. Integration of the phase currents then yields the voltage. This approach captures
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Logic Diagram of the Stage with Definite-Time Characteristic Curve
Capacitor Bank Protection
7.6 Peak Overvoltage Protection for Capacitors
1027

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