4.4
SEL-700G Relay
Instruction Manual
Date Code 20170814
Protection and Logic Functions
Group Settings (SET Command)
The SEL-700G prints the relay and terminal identifier strings at the top of the
responses to serial port commands to identify messages from individual
relays.
Enter as many as 16 characters, including letters A–Z (not case sensitive),
numbers 0–9, periods (.), dashes (-), and spaces. Suggested identifiers include
the location or number of the protected equipment.
Configuration
Settings
The phase rotation setting tells the relay your phase labeling standard. Set
PHROT equal to ABC when B-phase current lags A-phase current by 120
degrees. Set PHROT equal to ACB when B-phase current leads A-phase
current by 120 degrees. You have great application flexibility (use the
SEL-700G in pumped storage applications, for example) by being able to set
any phase rotation you want in each setting group.
Table 4.2
Configuration Settings
Setting Prompt
Setting Range
Setting Name := Factory Default
PHASE ROTATION
ABC, ACB
PHROT := ABC
X CUR INPUT FROM
NEUT, TERM
X_CUR_IN := NEUT
X PH CT RATIO
1–10000
a
a
Range settings shown are for relay models with 5 A rated current input. Multiply by 5 for the
1 A rated input.
CTRX := 500
NOMINAL CURRENT
1.0–10.0 A
b
b
Range and default setting shown are for relay models with 5 A rated current input. Divide by
5 for the 1 A rated input.
INOM := 5.0 A
X SIDE PT CONN
DELTA, WYE
DELTAY_X := WYE
X PT RATIO
1.00–10000.00
PTRX := 100.00
X SIDE VNOM
0.02–1000 kV
VNOM_X := 13.80 kV
EXT ZERO SQ VOLT
NONE, VS, VN
EXT3V0_X := NONE
Y PH CT CONN
DELTA, WYE
CTCONY := WYE
Y PH CT RATIO
1–10000
CTRY := 500
c
c
Default setting may be different, depending on the relay part number.
Y SIDE PT CONN
DELTA, WYE
DELTAY_Y := WYE
Y PT RATIO
1.00–10000.00
PTRY := 1000.00
Y SIDE VNOM
0.02–1000 kV
VNOM_Y := 138.00 kV
SYNCV PT RATIO
1.00–10000.00
PTRS := 100.00
NEUT CT RATIO
1–10000
CTRN := 100
NEUT PT RATIO
1.00–10000.00
PTRN := 100.00
Summary of Contents for SEL-700G Series
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