Siemens 6MD86 - Arc Protection; Overview of Function; Structure of the Function

Arc Protection
Overview of Function
The function Arc protection:
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Detects arcs in air-insulated switchgear parts without delay and in a fail-safe way
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Limits system damage through instantaneous high-speed tripping
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Protect systems from thermal overload
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Increases safety of personnel
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Trips in a 3-pole way
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Is suitable for use in all voltage levels
Structure of the Function
The Arc protection function can be added to function groups that provide current measured values.
The Arc protection function consists of the following blocks.
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General
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3 stages
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Output logic 3-phase
The Arc protection function is preconfigured with 3 stages. A maximum of 17 tripping stages can be operated
simultaneously in the function. The tripping stages have an identical structure.
The following figure shows the basic structure of the Arc protection function.
[dw_structure_arcprot, 2, en_US]
Figure 7-196 Structure/Embedding of the Arc Protection Function
7.29
7.29.1
7.29.2
Protection and Automation Functions
7.29 Arc Protection
912 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017