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Section 3
REU615 standard configurations
34
GUID-BBD0D81F-5F94-4E97-8CF5-560F9EA9562F V1 EN
Figure 12:
Undervoltage protection
Three undervoltage protection stages (PHxPTUV) protect against abnormal phase
voltage conditions in the power system. The operation of voltage functions is
connected to alarm LED 2. An external supervision device detects failures in
primary high voltage fuses and the activation is connected to binary input
X130:BI1. Activating the binary input to avoid faulty undervoltage tripping blocks
the undervoltage protection functions.
GUID-6A4FADFD-F55D-433D-894F-370CF538F902 V1 EN
Figure 13:
Residual overvoltage protection
1MRS757054 A
REU615
Application Manual
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