7.39
Date Code 20100129 Instruction Manual SEL-751A Relay
Communications
SEL ASCII Protocol and Commands
Negative Seq TOC
51QP := 6.00 51QC := U3 51QTD := 3.00
51QRS := N 51QCT := 0.00 51QMR := 0.00
51QTC := 1
Neutral TOC
51N1P := OFF 51N2P := OFF
Residual TOC
51G1P := 0.50 51G1C := U3 51G1TD := 1.50
51G1RS := N 51G1CT := 0.00 51G1MR := 0.00
51G1TC := 1
51G2P := 0.50 51G2C := U3 51G2TD := 1.50
51G2RS := N 51G2CT := 0.00 51G2MR := 0.00
51G2TC := 1
RTD Settings
E49RTD := NONE
Undervoltage Set
27P1P := OFF 27P2P := OFF
Overvoltage Set
59P1P := 1.10 59P1D := 0.5 59P2P := OFF
59Q1P := OFF 59Q2P := OFF
Power Factor Set
55LGTP := OFF 55LDTP := OFF 55LGAP := OFF
55LDAP := OFF
Frequency Set
81D1TP := OFF 81D2TP := OFF 81D3TP := OFF
81D4TP := OFF 81D5TP := OFF 81D6TP := OFF
Rate of Frequency Set
E81R := OFF
Demand Mtr Set
EDEM := THM DMTC := 5 PHDEMP := 5.00
GNDEMP := 1.00 3I2DEMP := 1.00
Trip/Close Logic
TDURD := 0.5 CFD := 1.0
TR := ORED50T OR ORED51T OR 81D1T OR 81D2T OR 81D3T OR 81D4T OR 59P1T OR
59P2T OR 55T OR REMTRIP OR SV01 OR OC OR SV04T
REMTRIP := 0
ULTRIP := NOT ( 51P1P OR 51G1P OR 51N1P OR 52A )
52A := 0
CL := SV03T AND LT02 OR CC
ULCL := 0
Reclosing Control
E79 := OFF
=>>
Figure 7.21 SHOW Command Example
STATUS Command (Relay Self-Test Status)
The STA command (see Table 7.46) displays the status report.
Refer to Section 10: Testing and Troubleshooting for self-test thresholds and
corrective actions, as well as hardware configuration conflict resolution.
Table 7.47 shows the status report definitions and message formats for each test.
Table 7.46 STATUS Command (Relay Self-Test Status)
Command Description Access Level
STA n Display the relay self-test information n times
(n = 1–32767). Defaults to 1 if n is not specified.
1
STA S Display the memory and execution utilization for
the SEL
OGIC control equations.
1
STA C or R Reboot the
relay and clear self-test warning and
failure status results.
2
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