Sel SEL-487B - Metering and Specialty Functions

SEL-487B Data Sheet Schweitzer Engineering Laboratories, Inc.
30
Under- and Overvoltage Elements (27, 59)
Processing Rate: 1/6 cycle
Phase Under- and Overvoltage (2 Level/Phase)
Setting Range: 2.00–200 V
LN
in 0.01 steps
Accuracy: ±5% of setting, ±0.5 V
Transient Overreach: <5% of pickup
Maximum Delay: 1.5 cycles
Zero- and Negative-Sequence Overvoltage Elements
Setting Range: 1.0–200 V in 0.1 steps
Accuracy: ±5% of setting, ±1 V
Transient Overreach: <5% of setting
Maximum Delay: 1.5 cycles
Breaker Failure Instantaneous Overcurrent
Setting Range
5 A Model: 0.50–50 A, 0.01 A steps
1 A Model: 0.10–10.0 A, 0.01 A steps
Accuracy
5 A Model: ±0.05 A, ±3% of setting
1 A Model: ±0.01 A, ±3% of setting
Transient Overreach: <5% of setting
Maximum Pickup Time: 1.5 cycles
Maximum Reset Time: <1 cycle
Timers Setting Range: 0–6000 cycles, 1/12-cycle steps
(BFPUnn, RTPUnn)
0–1000 cycles, 1/12-cycle steps
(BFISPnn, BFIDOnn)
Time Delay Accuracy: 1/12 cycle, ±0.1% of setting
Disconnect Monitor
Number: 60
Timer Setting Range: 0–99999 cycles, 1 cycle step
Breaker Status Monitor
Number: 21
Coupler Security Logic
Number: 4
Timer Setting Range: 0–1000 cycles, 1/12 cycle step
Control Input Timers
Setting Range
Pickup: 0.00–30 ms
Dropout: 0.00–30 ms
Station DC Battery System Monitor Specifications
Rated Voltage: 15–300 Vdc
Operational Voltage
Range: 0–350 Vdc
Input Sampling Rate: 2 kHz
Processing Rate: 1/6 cycle
Operating Time: 1.5 seconds (element DC1R)
1.5 cycles (all elements but DC1R)
Setting Range
DC Settings: 1 Vdc Steps (OFF, 15–300 Vdc)
AC Ripple Setting: 1 Vac Steps (1–300 Vac)
Pickup Accuracy: ±10% ±2 Vdc (DC1RP)
±3% ±2 Vdc (all elements but DC1RP)
Metering Accuracy
All metering accuracies are based on an ambient temperature of 20°C
and nominal frequency.
Currents
Phase Current Magnitude
5 A Model: ±0.2% plus ± 4 mA (2.5–15 A sec)
1 A Model: ±0.2% plus ± 0.8 mA (0.5–3.0 A sec)
Phase Current Angle
All Models: ±0.2° in the current range
(0.5–3.0) • I
NOM
Differential Currents per Zone (Steady State)
IOP, IRT: ±5.0% ±0.02 • I
NOM
IOPCZ, IRTCA: ±5.0% ± 0.02 • I
NOM
Voltages
Phase Voltage Magnitude
300 V Maximum Inputs: ±2.5% ±1 V (5–33.5 V)
±0.1% (33.5–300 V)
Phase Angle
300 V Maximum Inputs: ±1.0° (5–33.5 V)
±0.5° (33.5–300 V)