J.28
SEL-700G Relay
Instruction Manual
Date Code 20170814
Relay Word Bits
Definitions
VDIFY
Intertie and system voltage difference within acceptable bounds
36
VLOWER
Lower voltage for autosynchronism
35
VPOLVX
X-side positive-sequence polarization voltage valid
55
VPOLVY
Y-side positive-sequence polarization voltage valid
55
VRAISE
Raise voltage for autosynchronism
35
VSYNCACT
Voltage Matching – Auto Synchronization is in Progress
132
VSYNCNO
Voltage synchronism timer timeout
41
WARNING
Relay Word WARNING. Refer to Table 8.3 for a list of WARNING conditions.
53
WDGALRM
Winding Temperature Alarm. WDGALRM asserts if any healthy winding RTD
temperature exceeds its alarm setpoint, or biased alarm setpoint.
44
WDGTRIP
Winding Temperature trip. WDGTRIP asserts when one or two (when EWDGV = Y)
healthy winding RTD temperatures exceed their trip or biased trip (when RTDBIAS = Y)
setpoints.
44
ZCFREQS
Zero-crossing frequency measurement function detects a valid signal on the VS channel.
69
ZCFREQX
Zero-crossing frequency measurement function detects a valid signal on the VAX/VABX/
IAX channel.
69
ZCFREQY
Zero-crossing frequency measurement function detects a valid signal on the VAY/VABY/
IAY channel.
69
ZLINY
Y-side load-encroachment “load in” element
55
ZLOADX
X-side load-encroachment element pickup
33
ZLOADY
Y-side load-encroachment element pickup
33
ZLOUTY
Y-side load-encroachment “load out” element
55
Table J.3
Relay Word Bit Definitions for the SEL-700G
(Sheet 22 of 22)
Bit
Definition
Row
Summary of Contents for SEL-700G Series
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