P.1.19
Date Code 20151029 Protection Manual SEL-411L Relay
Introduction and Specifications
Specifications
Load-Encroachment Detection
Setting Range
5 A Model: 0.05–64 secondary, 0.01 steps
1 A Model: 0.25–320 secondary, 0.01 steps
Forward Load Angle: –90° to +90°
Reverse Load Angle: +90° to +270°
Accuracy
Impedance
Measurement: ±3%
Angle Measurement: ±2°
Out-of-Step Elements
Blinders (R1) Parallel to the Line Angle
5 A Model: 0.05 to 70 secondary
–0.05 to –70 secondary
1 A Model: 0.25 to 350 secondary
–0.25 to –350 secondary
Blinders (X1) Perpendicular to the Line Angle
5 A Model: 0.05 to 96 secondary
–0.05 to –96 secondary
1 A Model: 0.25 to 480 secondary
–0.25 to –480 secondary
Accuracy (Steady State)
5 A Model: ±5% of setting plus ±0.01 A for SIR
(source to line impedance ratio) < 30
±10% of setting plus ±0.01 A for
30 SIR 60
1 A Model: ±5% of setting plus ±0.05 A for SIR
(source to line impedance ratio) < 30
±10% of setting plus ±0.05 A for
30 SIR 60
Transient Overreach: < 5% of setting plus steady-state
accuracy
Positive-Sequence Overcurrent Supervision
Setting Range
5 A Model: 1.0–100.0 A, 0.01 A steps
1 A Model: 0.2–20.0 A, 0.01 A steps
Accuracy
5 A Model: ±3% of setting plus ±0.05 A
1 A Model: ±3% of setting plus ±0.01 A
Transient Overreach: < 5% of setting
Bay Control
Breakers: 2 (control), 3rd indication
Disconnects (Isolators): 10 (maximum)
Timers Setting Range: 1–99999 cycles, 1-cycle steps
Time-Delay Accuracy: ±0.1% of setting, ±0.125 cycle
Timer Specifications
Setting Ranges
Breaker Failure: 0–6000 cycles, 0.125 cycle steps
(All but BFIDOn, BFISPn)
0–1000 cycles, 0.125 cycle steps
(BFIDOn, BFISPn)
Communications-
Assisted Tripping
Schemes: 0.000–16000 cycles, 0.125 cycle steps
Out-of-Step Timers
OSBD, OSTD: 0.500–8000 cycles, 0.125 cycle steps
UBD: 0.500–120 cycles, 0.125 cycle steps
Pole Open Timer: 0.000–60 cycles, 0.125 cycle steps
Recloser: 1–99999 cycles, 1 cycle steps
Switch-Onto-Fault
CLOEND, 52AEND: OFF, 0.000–16000 cycles,
0.125 cycle steps
SOTFD: 0.50–16000 cycles, 0.125 cycle steps
Synchronism Check Timers
TCLSBK1, TCLSBK2: 1.00–30.00 cycles, 0.25 cycle steps
Zone Time Delay: 0.000–16000 cycles, 0.125 cycle steps
Station DC Battery System Monitor Specifications
Rated Voltage: 15–300 Vdc
Operational Voltage Range: 0–350 Vdc
Sampling Rate: DC1: 2 kHz
DC2: 1 kHz
Processing Rate: 1/8 cycle
Operating Time: < 1.5 cycles (all elements except ac ripple)
< 1.5 seconds (ac ripple element)
Setting Range
DC Settings: 1 Vdc steps (OFF, 15–300 Vdc)
AC Ripple Setting: 1 Vac steps (1–300 Vac)
Pickup Accuracy: ±3% ±2 Vdc (all elements except ac
ripple)
±10% ±2 Vac (ac ripple element)
Metering Accuracy
All metering accuracy is at 20°C, and nominal frequency unless
otherwise noted.
Currents
Phase Current Magnitude
5 A Model: ±0.2% plus ±4 mA (2.5–15 A s)
1 A Model: ±0.2% plus ±0.8 mA (0.5–3 A s)
Phase Current Angle
All Models: ±0.2° in the current range 0.5 • I
NOM
to
3.0 • I
NOM
Sequence Currents Magnitude
5 A Model: ±0.3% plus ±4 mA (2.5–15 A s)
1 A Model: ±0.3% plus ±0.8 mA (0.5–3 A s)
Sequence Current Angle
All Models: ±0.3° in the current range 0.5 • I
NOM
to
3.0 • I
NOM
Voltages
Phase and
Phase-to-Phase Voltage
Magnitude: ± 0.1% (33.5–200 V
L-N
)
Phase and
Phase-to-Phase Angle: ±0.5° (33.5–200 V
L-N
)
Sequence Voltage
Magnitude: ±0.15% (33.5–200 V
L-N
)
Sequence Voltage Angle: ±0.5° (33.5–200 V
L-N
)
Frequency (Input 40–65 Hz)
Accuracy: ±0.01 Hz
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