Schweitzer Engineering Laboratories SEL-487V - Page 31

Schweitzer Engineering Laboratories, Inc. SEL-487V Data Sheet
31
Battery System Monitoring
Pickup Range: 15–300 Vdc, 1 Vdc steps
Pickup Accuracy: ±3% of setting, ± 2 Vdc (all elements
except dc ripple)
±10% of setting, ± 2 Vdc (dc ripple
element)
Maximum
Pickup/Dropout Time:
±1.5 cycles (all elements except dc ripple)
±1.5 seconds (dc ripple element)
Sampling Rate: 1/8 cycle
Voltage Sag/Swell/Interruption Reporting
Pickup Range
Sag: 10.00%–95.00%
Swell: 105.00%–180.00%
Interruption: 5.00%–95.00%
Recording Rates and Duration
Fast: 4 samples/cycle 4 cycle dur.
Medium: 1 sample/cycle 176 cycle dur.
Slow: 1 sample/64 cycles 4096 cycle dur.
Daily: 1 sample/day Indefinite
Control Functions (SEL-487V-1)
Voltage Control
Dead-Band Range: 10.00–300.00 V sec.
Dead-Band Control
Delay: 1–6000 s
Stall-Time Delay: 1–6000 s
Power Factor Control
Dead-Band Range: 0.01–0.99
Dead-Band Control
Delay: 1–6000 s
Stall-Time Delay: 1–6000 s
Minimum Operating
Power: ±1 W or ±1 VAR sec.
VAR Control
Dead-Band Range: –1000.00 to +1000.00 VAR sec.
Dead-Band Control
Delay: 1–6000 s
Stall-Time Delay: 1–6000 s
Minimum Operating
Power: ±1 W or ±1 VAR sec.
Time-of-Day Control
Minimum Resolution: ±1 minute
Universal Sequencer
Accumulation Period: 1–9999 minutes
Resolution: ±1 minute
Accumulated Value: 0–2147483646
Resolution: ±1