Schweitzer Engineering Laboratories SEL-487V - Page 29

Schweitzer Engineering Laboratories, Inc. SEL-487V Data Sheet
29
Accuracy: ±3% of setting, ± 0.5 V
Transient Overreach: ±5% of pickup
Maximum Delay: 1.5 cycles
Phase-to-Phase Under- and Overvoltage Elements
Elements based on maximum of the calculated phase-to-phase
voltages
Pickup Range: 0.25–520 V
LL
in 0.01 steps
Accuracy: ±3% of setting, ± 0.5 V
Transient Overreach: ±5% of pickup
Maximum Delay: 1.5 cycles
Sequence Under- and Overvoltage
Pickup Range: 0.25 V–300 V
LN
in 0.01 steps
Pickup Accuracy, Steady
State: ±5% of setting, ± 1 V
Pickup Accuracy,
Transient Overreach: ±5%
Maximum
Pickup/Dropout Time: 1.5 cycles
Under- and Overfrequency Elements
Pickup Range: 40.01–69.99 Hz, 0.01 Hz steps
Accuracy, Steady State
plus Transient:
±0.005 Hz for frequencies between 40.00
and 70.00 Hz
Maximum
Pickup/Dropout Time: 3.0 cycles
Time-Delay Range: 0.04–400.0 s, 0.01 s increments
Time-Delay Accuracy: ±0.1% ± 0.0042 s
Pickup Range,
Undervoltage Blocking: 20.00–200.00 V
LN
(Wye)
Pickup Accuracy,
Undervoltage Blocking: ±2% ± 2 V
Maximum
Pickup/Dropout Time: 2.625 cycles
Breaker Failure Instantaneous Overcurrent
Setting Range
5 A nominal: 0.50–50 A, 0.01 A steps
1 A nominal: 0.10–10.0 A, 0.01 A steps
Accuracy
5 A nominal: ±0.05 A ± 3% of setting
1 A nominal: ±0.01 A ± 3% of settings
Transient Overreach
5 A nominal: ±5%, ± 0.10 A
1 A nominal: ±5%, ± 0.02 A
Maximum Pickup Time: 1.5 cycles
Maximum Dropout Time:
Less than 1 cycle
Maximum Reset Time: Less than 1 cycle
Timer Setting Range: 0–6000 cycles, 0.125 cycle steps
Time-Delay Accuracy: ±0.1% of setting ± 0.125 cycle
Directional Over- and Underpower Element
Pickup Range: 3-phase: OFF, 1–900 W (secondary) in 1
W steps
Single phase: OFF, 0.30–900 W
(secondary) in 0.1 W steps
Pickup Accuracy: ±3% of setting and ±5 W, power
factor > ±0.5 at nominal frequency
Time-Delay Range: 0–16,000 cycles, 0.125 cycle increment
Time-Delay Accuracy: ±0.1% of setting, ± 0.125 cycle
Bay Control
Breakers: 1
Disconnects (Isolators): 10 (maximum)
Timers Setting Range: 1–99999 cycles, 1-cycle steps
Time-Delay Accuracy: ±0.1% of setting, ± 0.125 cycle
Station DC Battery System Monitor
Rated Voltage: 24–250 Vdc
Operational Voltage Range: 0–350 Vdc
Input Sampling Range: 2 kHz
Processing Rate: 1/8 cycle
Operating Time: 1.5 seconds (element dc ripple)
1.5 cycles (all elements but dc ripple)
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 (dc ripple)
±3%, ± 2 Vdc (all elements but dc ripple)
Metering Accuracies
All metering accuracies are based on an ambient temperature of 20°C
and nominal frequency.
Absolute Phase-Angle
Accuracy:
IA, IB, and IC per terminal:
±0.5° (both 1 and 5 A)
VA, VB, and VC per terminal:
±0.125°
Currents
Quantity: IA, IB, IC Per Terminal
I
NOM
= 1 A
Magnitude Accuracy: ±0.2%, ± 0.8 mA
Phase Accuracy: ±0.2°
Current Range: 0.5–3.0
I
NOM
= 5 A
Magnitude Accuracy: ±0.2%, ± 4.0 mA
Phase Accuracy: ±0.2°
Current Range: 2.5–15.0
Quantity: 3I0 (IG), I1 and 3I2 (Calculated) Per Terminal
I
NOM
= 1 A
Magnitude Accuracy: ±0.3%, ± 0.8 mA
Phase Accuracy: ±0.3°
Current Range: 0.1–20.0
I
NOM
= 5 A
Magnitude Accuracy: ±0.3%, ± 4.0 mA
Phase Accuracy: ±0.3°
Current Range: 0.5–100.0
Quantity: VA, VB, VC Per Terminal
Voltage Range: 5–33.5 V
Magnitude Accuracy: ±2.5% ± 1 V
Phase Accuracy: ±1.0°
Voltage Range: 33.5–300 V
Magnitude Accuracy: ±0.1%
Phase Accuracy: ±0.5°
Quantity: 3V0, V1, V2 Per Terminal
Voltage Range: 5–33.5 V
Magnitude Accuracy: ±2.5% ± 1 V
Phase Accuracy: ±1.0°