Stage with Definite-Time Characteristic Curve
Description
Logic of a Stage
[loinvocp-270612-01.tif, 1, en_US]
Figure 7-123
Logic Diagram of the Definite-Time Overcurrent Protection, 1-Phase
Method of measurement
You use the
Method of measurement
parameter to define whether the stage uses the
fundamental
comp.
or the calculated
RMS value
.
•
Measurement of the fundamental component:
This method of measurement processes the sampled current values and filters out the fundamental
component numerically.
•
Measurement of the RMS value:
This method of measurement determines the current amplitude from the sampled values according to
the defining equation of the RMS value. Harmonics are included in the analysis.
7.8.3
7.8.3.1
Protection and Automation Functions
7.8 Overcurrent Protection, 1-Phase
748
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Содержание 6MD85
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