Figure 7-72). Depending on other functions, the stage can also be blocked dynamically. This functionality is
only available in function type Advanced.
[loocp3dpa-030311-01.vsd, 2, en_US]
Figure 7-72
Principle of the Dynamic Settings Exemplified by 1st Definite-Time Overcurrent Protection
Stage
If available in the device, the following functionalities can affect the overcurrent-protection stages:
Functionalities
Priority
Automatic reclosing (AREC) Priority 1
Cold-load pickup detection Priority 2
Binary input signal Priority 3
These functionalities generate signals that change the settings of the dynamic settings of the overcurrent-
protection stage or block it, if required. In the latter case, the settings of the Threshold and Operate
delay parameters are of no relevance. Within the overcurrent-protection stage, each of these signals is
provided with a configuration parameter Influence of function ... and its own dynamic settings
(Operate delay and Threshold). The configuration settings are used to set whether the signal shall be
active or not, this means whether the dynamic settings shall be activated or not. If one of these signals (for
Protection and Automation Functions
7.4 Overcurrent Protection, Phases
630 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
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