Siemens 7SJ85 - Instantaneous Tripping at Switch Onto Fault; Overview of Functions; Structure of the Function

Instantaneous Tripping at Switch onto Fault
Overview of Functions
The Instantaneous tripping at switch onto fault function serves for immediate tripping when switching onto
a fault.
The function does not have its own measurement and must be linked to another protection function with the
pickup (measurement).
Structure of the Function
The function Instantaneous tripping at switch onto fault can be used in all protection function groups.The
function is preconfigured with a stage. A maximum of 2 tripping stages can be operated simultaneously in the
function. The stages have an identical structure.
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Figure 6-96 Structure/Embedding of the Function
6.11
6.11.1
6.11.2
Protection and Automation Functions
6.11 Instantaneous Tripping at Switch onto Fault
SIPROTEC 5, Overcurrent Protection, Manual 519
C53000-G5040-C017-8, Edition 07.2017