GE RPV311, Техническое руководство

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Chapter 4
– Configuration
RPV311
72 RPV311-TM-EN-7

dABC1
and dN1 - phasor variation;

𝑑𝑆
+
- positive sequence variation;

𝑑𝑆
−
- negative sequence variation;

dIIMB
- unbalance variation;

dIFRQ
- frequency variation;

dITHD
- THD variation.
The O
PERATOR
scroll box allows user to select greater than or less than for analog
magnitude;
The V
ALUE
text field allows user to enter the magnitude value associated with greater
than or less than operator;
The H
OLD TIME
text field allows user to enter the time in milliseconds, where the
threshold needs to be exceeded to be considered valid;
The H
YSTERESIS
text field allows user to enter a quantity in % , whose the value needs
to be smaller in relation to the threshold to determine the end of the event and to
reset the threshold detector.
Once the threshold is created, it appears in the configuration interface menu. When
selecting the threshold, a screen shows the characteristics of the threshold selected,
as shown in the figure below. It is possible to edit the value, hold time, and hysteresis.
Figure 28: Adding and editing a current threshold