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S
ETTINGS
S
HEET
Page 7
OF
22
FOR THE
SEL-311B R
ELAY
Date
R
ELAY
S
ETTINGS
(S
ERIAL
P
ORT
C
OMMAND
SET
AND
F
RONT
P
ANEL
)
Date Code 20011205
(Make settings 50GFP, 50GRP, and a0 if preceding enable setting E32 = Y and preceding setting
ORDER contains V or I. If E32 = AUTO and ORDER contains V or I, these settings are made
automatically.)
Forward directional 3I0 pickup (0.25–5.00 A secondary {5 A nom.};
0.05–1.00 A secondary {1 A nom.})
50GFP =
Reverse directional 3I0 pickup (0.25–5.00 A secondary {5 A nom.};
0.05–1.00 A secondary {1 A nom.})
50GRP =
Positive-sequence current restraint factor, I0/I1 (0.02–0.50, unitless)
a0 =
(Make settings Z0F and Z0R if preceding enable setting E32 = Y and preceding setting ORDER
contains V. If E32 = AUTO and ORDER contains V, these settings are made automatically.)
Forward directional Z0 threshold (-64.00–64.00
W
secondary {5 A nom.})
(-320.00–320.00
W
secondary {1 A nom.})
Z0F =
Reverse directional Z0 threshold (-64.00–64.00
W
secondary {5 A nom.})
(-320.00–320.00
W
secondary {1 A nom.})
Z0R =
Voltage Elements (See Figures 3.21, 3.22, and 3.23)
(Make the following settings if preceding enable setting EVOLT = Y )
Phase undervoltage pickup (OFF, 0.0–150.0 V secondary)
27P =
Phase overvoltage pickup (OFF, 0.0–150.0 V secondary)
59P =
Channel VS undervoltage pickup (OFF, 0.0–150.0 V secondary)
27SP =
Channel VS overvoltage pickup (OFF, 0.0–150.0 V secondary)
59SP =
Phase-to-phase undervoltage pickup (OFF, 0.0–260.0 V secondary)
27PP =
Phase-to-phase overvoltage pickup (OFF, 0.0–260.0 V secondary)
59PP =
Synchronism Check Elements (See Figures 3.24 and 3.25)
(Make the following settings if preceding enable setting E25 = Y.)
Voltage window—low threshold (0.00–150.00 V secondary)
25VLO =
Voltage window—high threshold (0.00–150.00 V secondary)
25VHI =
Maximum slip frequency (0.005–0.500 Hz)
25SF =
Maximum angle 1 (0.00
°
–80.00
°
)
25ANG1 =
Maximum angle 2 (0.00
°
–80.00
°
)
25ANG2 =
Synchronizing phase (VA, VB, VC, VAB, VBC, VAC)
SYNCP =
Breaker close time for angle compensation
(OFF, 1.00–60.00 cycles in 0.25-cycle steps)
TCLOSD =
Reclosing Relay (See Tables 6.2 and 6.3)
(Make the following settings if preceding enable setting E79 = 1–4.)
Open interval 1 time (0.00–999999.00 cycles in 0.25-cycle steps)
79OI1 =
Open interval 2 time (0.00–999999.00 cycles in 0.25-cycle steps)
79OI2 =
Open interval 3 time (0.00–999999.00 cycles in 0.25-cycle steps)
79OI3 =
Open interval 4 time (0.00–999999.00 cycles in 0.25-cycle steps)
79OI4 =
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