Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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Date Code 20170814 Instruction Manual SEL-700G Relay
Introduction and Specifications
Specifications
Dielectric Strength and Impulse Tests
Dielectric (HiPot): IEC 60255-5:2000
IEEE C37.90-2005
2.5 kVac on current inputs, voltage
inputs, contact I/O
2.0 kVac on analog inputs
1.0 kVac on analog output
2.83 kVdc on power supply
Impulse: IEC 60255-5:2000
0.5 J, 4.7 kV on power supply,
contact I/O, ac current and voltage
inputs
0.5 J, 530 V on analog outputs
RFI and Interference Tests
EMC Immunity
Electrostatic Discharge
Immunity:
IEC 60255-22-2:2008
IEC 61000-4-2:2008
Severity Level 4
8 kV contact discharge
15 kV air discharge
Radiated RF Immunity: IEC 60255-22-3:2007
IEC 61000-4-3:2002, 10 V/m
IEEE C37.90.2-1995, 35 V/m
Fast Transient, Burst
Immunity:
IEC 60255-22-4:2008
IEC 61000-4-4:2004
4 kV @ 2.5 kHz
2 kV @ 5.0 kHz for comm. ports
Surge Immunity: IEC 60255-22-5:2008
IEC 61000-4-5:2005
2 kV line-to-line
4 kV line-to-earth
Surge Withstand Capability
Immunity:
IEC 60255-22-1:1988
2.5 kV common mode
1.0 kV differential mode
1 kV common mode on comm. ports
IEEE C37.90.1-2002
2.5 kV oscillatory
4 kV fast transient
Conducted RF Immunity: IEC 60255-22-6:2001
IEC 61000-4-6:2006, 10 Vrms
Magnetic Field Immunity: IEC 61000-4-8:2001
1000 A/m for 3 seconds
100 A/m for 1 minute
EMC Emissions
Conducted Emissions: EN 55011:1998, Class A
Radiated Emissions: EN 55011:1998, Class A
Electromagnetic Compatibility
Product Specific: EN 50263:1999
Processing Specifications and Oscillography
AC Voltage and
Current Inputs: 32 samples per power system cycle
Analog Inputs: 4 samples per power system cycle
Frequency Tracking Range: 15–70 Hz
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 100 ms).
The protection elements 40, 51, and
78 are processed twice per cycle.
Analog quantities for rms data are
determined through use of data
averaged over the previous 8 cycles.
Oscillography
Length: 15, 64, 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
Accuracy: ±5% of setting plus ±0.02 • I
NOM
A
secondary (steady-state pickup)
Time Delay: 0.00–400.00 seconds, 0.01 seconds
steps, ±0.5% plus ±0.25 cycle
0.10–400.00 seconds, 0.01 seconds
steps, ±0.5% plus ±0.25 cycle for
50Q
Pickup/Dropout Time: <1.5 cycles
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)
Time Dial:
US: 0.50–15.00, 0.01 steps
IEC: 0.05–1.00, 0.01 steps
Accuracy: ±1.5 cycles plus ±4% between 2 and
30 multiples of pickup (within rated
range of current)
Differential (87)
Unrestrained Pickup Range: 1.0–20.0 in per unit of TAP
Restrained Pickup Range: 0.10–1.00 in per unit of TAP
Pickup Accuracy (A secondary):
5 A Model: ±5% plus ±0.10 A
1 A Model: ±5% plus ±0.02 A
TAP Range (A secondary):
5 A Model: 0.5–31.0 A
1 A Model: 0.1–6.2 A
Unrestrained Element
Pickup Time: 0.8/1.0/1.9 cycles (Min/Typ/Max)
Restrained Element (With Harmonic Blocking)
Pickup Time: 1.5/1.6/2.2 cycles (Min/Typ/Max)
Restrained Element (With Harmonic Restraint)
Pickup Time: 2.62/2.72/2.86 cycles (Min/Typ/Max)