ABB RELION 615 Series Applications Manual page 83

1MRS758272 B
REG615
Application Manual
ARCSARC1_OPERATE
X130_BI3_RST_LOCKOUT
ARCSARC2_OPERATE
X130_BI3_RST_LOCKOUT
ARCSARC3_OPERATE
X130_BI3_RST_LOCKOUT
GUID-A21CD488-6B6A-47C7-AD6F-94C046BD1B2B V2 EN
Figure 84: Arc protection with dedicated HSO
Two three-phase overvoltage protection stages PHPTOV offer protection against
abnormal overvoltage conditions that arise due to load rejection or transient surges in
the network or when a generator is running but not connected to a system due to a fault
with AVR. Similarly, two three-phase undervoltage protection stages PHPTUV offer
protection against undervoltage conditions or are used as a backup against
underimpedance protection.
PHPTOV1_OPERATE
PHPTOV2_OPERATE
GUID-2904E2B7-20B7-41E7-9A06-7FF2BD8A3BC5 V2 EN
Figure 85: Overvoltage protection function
REG615 standard configurations
TRPPTRC3
BLOCK TRIP
OPERATE CL_LKOUT
RST_LKOUT
TRPPTRC4
BLOCK TRIP
OPERATE CL_LKOUT
RST_LKOUT
TRPPTRC5
BLOCK TRIP
OPERATE CL_LKOUT
RST_LKOUT
PHPTOV1
BLOCK OPERATE
START
PHPTOV2
BLOCK OPERATE
START
OR
B1 O
B2
Section 3
TRPPTRC3_TRIP
TRPPTRC4_TRIP
TRPPTRC5_TRIP
PHPTOV1_OPERATE
PHPTOV1_START
PHPTOV2_OPERATE
PHPTOV2_START
PHPTOV_OPERATE
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