Siemens SIPROTEC 5 - Function Description

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Figure 7-67 Structure/Embedding of the Function
A maximum of 3 function blocks of the same type can be entered or removed within the function. For unam-
biguous differentiation, the function blocks automatically receive a sequential number in the name of the
function block, for example, Trigger Psum 1, Trigger Psum 2, or Trigger Psum 3.
Each function block of the group of triggers contains the level triggers Max. trigger and Min. trigger
as well as the gradient triggers dM/dt rise (/Filter time) and dM/dt drop active of the corre-
sponding measurand.
You can find the description of the power-swing trigger in chapter 7.5.4.7 Function Description Trigger Power
Swing.
Function Description
Logic
The following logic diagram shows the operating state of the group of power triggers.
[dwlotrip-161012-02.tif, 1, en_US]
Figure 7-68
Logic Diagram of the Power Trigger
7.5.4.3
Fault Recorder
7.5 Trigger Functions 3-Phase
336 SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017