Schweitzer Engineering Laboratories, Inc. SEL-487E Data Sheet
29
Power Supply Immunity: IEC 61000-4-11:2004
IEC 61000-4-17:1999/A1:2001/A2:2008
IEC 61000-4-29:2000
AC Dips & Interruptions
Ripple on DC Power Input
DC Dips & Interruptions
Gradual Shutdown/Startup (DC only)
Discharge of Capacitors
Slow Ramp Down/Up
Reverse Polarity (DC only)
Damped Oscillatory
Magnetic Field:
IEC 61000-4-10:2016
Level 5:
100 A/m
EMC Compatibility
Product Standards: IEC 60255-26:2013
Emissions: IEC 60255-26:2013, Section 7.1
Class A
47 CFR Part 15B
Class A
Canada ICES-001 (A) / NMB-001 (A)
Environmental
Product Standards: IEC 60255-27:2013
Cold, Operational: IEC 60068-2-1:2007
Test Ad: 16 hours at –40°C
Cold, Storage: IEC 60068-2-1:2007
Test Ad: 16 hours at –40°C
Dry Heat, Operational: IEC 60068-2-2:2007
Test Bd: 16 hours at +85°C
Dry Heat, Storage: IEC 60068-2-2:2007
Test Bd: 16 hours at +85°C
Damp Heat, Cyclic: IEC 60068-2-30:2005
Test Db: +25 °C to +55 °C, 6 cycles (12 +
12-hour cycle), 95% RH
Damp Heat, Steady State: IEC 60068-2-78:2013
Severity: 93% RH, +40 °C, 10 days
Vibration Resistance: EC 60255-21-1:1988
Class 2 Endurance, Class 2 Response
Shock Resistance: IEC 60255-21-2:1988
Class 1 Shock Withstand, Class 1 Bump
Withstand, Class 2 Shock Response
Seismic: IEC 60255-21-3:1993
Class 2 Quake Response
Reporting Functions
High-Resolution Data
Rate: 8000 samples/second
4000 samples/second
2000 samples/second
1000 samples/second
Output Format: Binary COMTRADE
Note: Per IEEE C37.111-1999 and IEEE C37.111-2013, Common Format for
Transient Data Exchange (COMTRADE) for Power Systems.
Event Reports
Length: 0.25–24 seconds (based on LER and
SRATE settings)
Volatile Memory: 3 s of back-to-back event reports sampled
at 8 kHz
Nonvolatile Memory: At least 4 event reports of a 3 s duration
sampled at 8 kHz
Resolution: 4 and 8 samples/cycle
Event Summary
Storage: 100 summaries
Breaker History
Storage: 128 histories
Sequential Events Recorder
Storage: 1000 entries
Trigger Elements: 250 relay elements
Resolution: 0.5 ms for contact inputs
1/8 cycle for all elements
Processing Specifications
AC Voltage and Current Inputs
8000 samples per second
Full-cycle cosine filtering
Subscribed AC Input Current (Nominal Secondary)
5 A Nominal: S, T, U, W, X, and Y terminals
1 A Nominal: S. T, U, W, X, and Y terminals
1 A/5 A Nominal: Y terminal only (REF)
Protection and Control Processing
8 times per power system cycle
Control Points
64 remote bits
96 local control bits
32 latch bits in protection logic
64 latch bits in automation logic
Relay Element Pickup Ranges and Accuracies
Differential Elements (General)
Number of Zones: 2 (A, B, and C elements)
Number of Windings: 6
TAP Setting Range: (0.1–32.0) • I
NOM
A secondary
TAP Limit: TAP
MAX
/TAP
MIN
35
Time-Delay Accuracy: ±0.1% plus ±0.125 cycle
Differential Elements (Restraint)
Pickup Range: 0.1–4.0 per unit
Pickup Accuracy: 1 A nominal: ±5% ±0.02 A
5 A nominal: ±5% ±0.10 A
Pickup Time
(If E87UNB = N):
1.25 minimum cycle
1.38 typical cycle
1.5 maximum cycle
Pickup Time
(If E87UNB = Y):
0.5 minimum cycle
0.75 typical cycle
1.5 maximum cycle
Slope 1
Setting Range: 5% to 100%
Slope 2
Setting Range: 5% to 100%
Differential Elements (Unrestraint)
Pickup Range: (1.0–20.0) • TAP
Pickup Accuracy: ±5% of user setting, ±0.02 • I
NOM
A
Pickup Time
(Filtered Unrestraint):
0.7 minimum cycle
0.85 typical cycle
1.2 maximum cycle
Pickup Time
(Raw Unrestraint):
0.25 minimum cycle
0.5 typical cycle
1.0 maximum cycle
Note: The raw unrestraint pickup is set to U87P • 2 • 2.
Harmonic Elements (2nd, 4th, 5th)
Pickup Range: OFF, 5–100% of fundamental
Pickup Accuracy: 1 A nominal ±5% ±0.02 A
5 A nominal ±5% ±0.10 A
Time-Delay Accuracy: ±0.1% plus ±0.125 cycle (differential
element)
±0.1% plus ±0.25 cycle (distance element)
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