Schweitzer Engineering Laboratories SEL-787-3 - Electrical and Interference Tests; Processing and Oscillography Specifications

Schweitzer Engineering Laboratories, Inc. SEL-787-3, -4 Data Sheet
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Dielectric Strength and Impulse Tests
Dielectric (HiPot): IEC 60255-5:2000
IEEE C37.90-2005
2.5 kVac on contact inputs/outputs and
analog inputs
3.1 kVdc on power supply
1.0 kVac on analog outputs
Impulse: IEC 60255-5:2000
IEEE C37.90-2005
0.5 J, 5 kV on power supply, contact I/O,
ac current and voltage inputs
0.5 J, 1 kV on analog outputs
RFI and Interference Tests
EMC Immunity
Electrostatic Discharge
Immunity:
IEC 60255-26:2013; Section 7.2.3
EN 60255-26:2012; Section 7.2.3
IEC 61000-4-2:2008
EN 61000-4-2:2009
IEEE C37.90.3:2001
Severity Level 4
8 kV contact discharge
15 kV air discharge
Radiated RF Immunity: IEC 60255-26:2013; Section 7.2.4
EN 60255-26:2013; Section 7.2.4
IEC 61000-4-3:2008
EN 61000-4-3:2006/A1:2008
10 V/m
IEEE C37.90.2-2004
20 V/m
Fast Transient, Burst
Immunity:
IEC 61000-4-4:2011
EN 61000-4-4:2012
IEC 60255-22-4:2008
EN 60255-22-4:2008
4 kV @ 5.0 kHz
2 kV @ 5.0 kHz for comm. ports
Surge Immunity: IEC 61000-4-5:2005
EN 61000-4-5:2006
IEC 60255-22-5:2008
1 kV line-to-line
2 kV line-to-earth
Surge Withstand Capability
Immunity:
IEC 60255-26:2013; Section 7.2.6
EN 60255-26:2013; Section 7.2.6
IEC 61000-4-18:2006
EN 61000-4-18:2007
2.5 kV common mode
1.0 kV differential mode
1.0 kV common mode on comm. ports
IEEE C37.90.1-2002
2.5 kV oscillatory
4.0 kV fast transient
Conducted RF Immunity: IEC 60255-26:2013; Section 7.2.8
EN 60255-26:2013; Section 7.2.8
IEC 61000-4-6:2008
EN 61000-4-6:2009
10 Vrms
Magnetic Field Immunity: IEC 60255-26:2013; Section 7.2.10
EN 60255-26:2013; Section 7.2.10
IEC 61000-4-8:2009
EN 61000-4-8:2010
1000 A/m for 3 seconds
100 A/m for 1 minute; 50/60 Hz
IEC 61000-4-9:2001
EN 61000-4-9:1993/A1:2001
1000 A/m
IEC 61000-4-10:2001
EN 61000-4-10:1993/A1:2001
100 A/m (100 kHz and 1 MHz)
EMC Emissions
Radiated and Conducted
Emissions:
IEC 60255-26:2013; Section 7.1
EN 60255-26:2013; Section 7.1
CISPR 22:2008
EN 55022:2001
CISPR 11:2009/A1:2010
EN 55011:2009/A1:2010
FCC CFR47 - 2008; Part 15.107, 15.109
Processing Specifications and Oscillography
AC Voltage and
Current Inputs: 32 samples per power system cycle
Frequency Tracking Range: 15–70 Hz (requires ac voltage inputs
option)
Digital Filtering: One-cycle cosine after low-pass analog
filtering. Net filtering (analog plus
digital) rejects dc and all harmonics
greater than the fundamental.
Protection and
Control Processing:
Processing interval is 4 times per power
system cycle (except for math variables
and analog quantities, which are
processed every 25 ms). The 51
elements are processed 2 times per
power system cycle. Analog quantities
for rms data are determined through use
of data averaged over the previous 8
cycles.
Oscillography
Length: 15, 64, or 180 cycles
Sampling Rate: 32 samples per cycle unfiltered
4 samples per cycle filtered
Trigger: Programmable with Boolean expression
Format: ASCII and Compressed ASCII
Time-Stamp Resolution: 1 ms
Time-Stamp Accuracy: ±5 ms
Sequential Events Recorder
Time-Stamp Resolution: 1 ms
Time-Stamp Accuracy (with
respect to time source): ±5 ms
Relay Elements
Instantaneous/Definite-Time Overcurrent (50P, 50G, 50N, 50Q)
Pickup Setting Range, A secondary:
5 A models: 0.50–96.00 A, 0.01 A steps
1 A models: 0.10–19.20 A, 0.01 A steps
Time Delay: 0.00–5.00 seconds, 0.01 second steps
0.00–120.00 seconds, 0.01 second steps
(50Q)
±0.5% plus ±0.25 cycle
Accuracy: ±3% plus ±0.02 • INOM A secondary
(steady state)
±5% plus ±0.02 • INOM A secondary
(transient)
±6% plus ±0.02 • INOM A secondary
(transient for 50Q)
Pickup/Dropout Time: <1.5 cycle
Inverse Time Overcurrent (51P, 51G, 51N, 51Q)
Pickup Setting Range, A secondary:
5 A models: 0.50–16.00 A, 0.01 A steps
1 A models: 0.10–3.20 A, 0.01 A steps
Accuracy: ±5% of setting plus ±0.02 • I
NOM
A
secondary (steady-state pickup)