Chapter 4 – Configuration
The SOURCE scroll box allows user to define a code of a current circuit used. No editing allowed;
The QUANTITY scroll box allows user to select the associated magnitude to be monitored. For current circuits:
o and - magnitude or effective value;
o and - phasors;
o
- positive sequence;
o
- negative sequence;
o - imbalance;
o - frequency;
o - total harmonic distortion;
o and dN: - magnitude or effective value variation;
o and dN1 - phasor variation;
o
- positive sequence variation;
o
- negative sequence variation;
o - unbalance variation;
o - frequency variation;
o - THD variation.
The OPERATOR scroll box allows user to select greater than or less than for analog magnitude;
The VALUE text field allows user to enter the magnitude value associated with greater than or less than
operator;
The HOLD TIME text field allows user to enter the time in milliseconds, where the threshold needs to be
exceeded to be considered valid;
The HYSTERESIS 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.
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