J.12
SEL-787 Relay Instruction Manual Date Code 20081022
Relay Word Bits
Definitions
TSOK Assert if current time source accuracy is sufficient for synchronized phasor measurements. 25
TUTC1 Offset hours from UTC time, binary, add 1 if asserted. 106
TUTC2 Offset hours from UTC time, binary, add 2 if asserted. 106
TUTC4 Offset hours from UTC time, binary, add 4 if asserted. 106
TUTC8 Offset hours from UTC time, binary, add 8 if asserted. 106
TUTCH Offset half-hour from UTC time, binary, add 0.5 if asserted. 106
TUTCS Offset hours sign from UTC time, subtract the UTC offset if TUTCS is asserted; otherwise,
add.
106
ULCL1 Unlatch close conditions SEL
OGIC control equation CL1 state. 35
ULCL2 Unlatch close conditions SEL
OGIC control equation CL2 state. 35
ULTRIP1 Unlatch (auto reset) trip from SEL
OGIC control equation TR1. 35
ULTRIP2 Unlatch (auto reset) trip from SEL
OGIC control equation TR2. 35
ULTRXFMR Unlatch (auto reset) trip from SEL
OGIC control equation TRXFMR. 35
VBnnn Virtual Bits used for Incoming GOOSE messages (nnn = 1 through 128). 75-90
WA R N I N G R e l a y Wo r d WA R N I N G . 2 5
a
Reserved.
b
Harmonic restraint enabled.
Table J.2 Relay Word Bit Definitions for the SEL-787 (Sheet 9 of 9)
Bit Definition Row
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