Schweitzer Engineering SEL-387-0 - Page 25

1.9
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Specifications
Tightening Torque
Terminal Block
Minimum: 9 in-lb (1.1 Nm)
Maximum: 12 in-lb (1.3 Nm)
Connectorized (for further information, see SEL Application
Guide 2001-03, Installing and Servicing Connectors for
Connectorized
®
Relays)
Minimum: 5 in-lb (0.6 Nm)
Maximum: 7 in-lb (0.8 Nm)
Terminal Connections
Terminals or stranded copper wire. Ring terminals are
recommended. Minimum temperature rating of 105°C.
Routine Dielectric Strength
AC current inputs: 2500 Vac for 10 s
Power supply,
optoisolated inputs, and
output contacts: 3100 Vdc for 10 s
Weight
2U rack unit height: 6.8 kg (15 lb)
3U rack unit height: 8 kg (17.75 lb)
Type Tests
Emissions
*Generic Emissions,
Heavy Industrial: EN 50081-2:1993, Class A
*Generic Immunity,
Heavy Industrial: EN 50082-2:1995
*Radiated and Conducted
Emissions: EN 55011:1998, Class A
*Conducted Radio
Frequency:
EN 61000-4-6:1996
ENV 50141:1993
10 Vrms
Radiated Radio
Frequency (900 MHz
with modulation):
ENV 50204:1995
10 V/m
Note: * = Terminal Block version only.
Environmental Tests
Cold: IEC 60068-2-1:1990
[EN 60068-2-1:1993]
Test Ad; 16 hr at –40C
Damp Heat Cyclic: IEC 60068-2-30:1980
Test Db; 25° to 55C, 6 cycles,
95% humidity
Dry Heat: IEC 60068-2-2:1974
[EN 60068-2-2:1993]
Test Bd: 16 hr at +85C
Dielectric Strength and Impulse Tests
Dielectric: IEC 60255-5:1977
IEEE C37.90-1989
2500 Vac on analogs, contact inputs,
and contact outputs
3100 Vdc on power supply
2200 Vdc on EIA-485
communications port
Impulse: IEC 60255-5:1977 0.5 J, 5000 V
Electrostatic Discharge Test
ESD: IEC 60255-22-2:1996
IEC 61000-4-2:1995 Level 4
RFI and Interference Tests
1 MHz Burst
Disturbance: IEC 60255-22-1:1988 Class 3
Fast Transient
Disturbance:
IEC 60255-22-4:1992
IEC 61000-4-4:1995 Level 4
Radiated EMI: IEC 60255-22-3:1989
ENV 50140:1993
IEEE C37.90.2-1995
35 V/m
Surge Withstand: IEEE C37.90.1-1989
3.0 kV oscillatory; 5.0 kV fast
transient
Vibration and Shock Tests
Shock and Bump: IEC 60255-21-2:1988 Class 1
Seismic IEC 60255-21-3:1993 Class 2
Sinusoidal Vibration: IEC 60255-21-1:1988 Class 1
Object Penetration
Object Penetration: IEC 60529:1989 IP 30, IP 54 from the
front panel using the optional
SEL-9103 front-cover dust and splash
protection
Processing Specifications
64 samples per power system cycle
Metering Accuracy
5 A Model
Phase Currents: ±1.5% ±0.10 A and ±1.5°
Sequence Currents: ±3.0% ±0.10 A and ±2.0°
Differential Quantities: ±5.0% ±0.10 A
2nd and 5th Harmonic: ±5.0% ±0.10 A
Current Harmonics: ±5.0% ±0.10 A
1 A Model
Phase Currents: ±1.5% ±0.02 A and ±1.5°
Sequence Currents: ±3.0% ±0.02 A and ±2.0°
Differential Quantities: ±5.0% ±0.02 A
2nd and 5th Harmonic: ±5.0% ±0.02 A
Current Harmonics: ±5.0% ±0.02 A
Substation Battery Voltage Monitor
Pickup Range: 20–300 Vdc
Pickup Accuracy: ±2% of setting
Relay Elements
Differential Element
Unrestrained Pickup
Range: 1–20 in per unit of tap
Restrained Pickup
Range: 0.1–1.0 in per unit of tap
Pickup Accuracy (A secondary)
5 A Model: ±5% ±0.10 A
1 A Model: ±5% ±0.02 A
Unrestrained Element
Pickup Time:
0.8/1.0/1.9 cycles
(Min/Typ/Max)