Sel SEL-787 - Page 37

1.11
Date Code 20150130 Instruction Manual SEL-787 Relay
Introduction and Specifications
Specifications
Fiber Type:
Multimode
Link Budget:
16.1 dB
Typical TX Power:
–15.7 dBm
RX Min. Sensitivity:
–31.8 dBm
Fiber Size:
62.5/125 µm
Approximate Range:
~6.4 km
Data Rate:
100 Mb
Typical Fiber Attenuation:
–2 dB/km
Port 2 Serial (SEL-2812 compatible)
Wavelength: 820 nm
Optical Connector Type: ST
Fiber Type: Multimode
Link Budget: 8 dB
Typical TX Power: –16 dBm
RX Min. Sensitivity: –24 dBm
Fiber Size: 62.5/125 µm
Approximate Range: ~1 km
Data Rate: 5 Mb
Typical Fiber Attenuation:
–4 dB/km
Optional Communications Cards
Option 1:
EIA-232 or EIA-485 communications
card
Option 2: DeviceNet communications card
Communications Protocols
SEL, Modbus, DNP, FTP, TCP/IP, Telnet, SNTP, IEC 61850, MIRRORED
BITS, EVMSG, C37.118 (synchrophasors), and DeviceNet. See
Tabl e 7.3 for details.
Operating Temperature
IEC Performance Rating: –40 to +85C (–40 to +185F)
(per IEC/EN 60068-2-1 & 60068-2-2)
NOTE: Not applicable to UL applications.
NOTE: LCD contrast is impaired for temperatures below –20°C and
above +70°C
DeviceNet Communications
Card Rating: +60°C (140°F) maximum
Operating Environment
Pollution Degree: 2
Overvoltage Category: II
Atmospheric Pressure: 80–110 kPa
Relative Humidity: 5–95%, noncondensing
Maximum Altitude: 2000 m
Dimensions
144.0 mm (5.67 in.) x 192.0 mm (7.56 in.) x 147.4 mm (5.80 in.)
Weight
2.0 kg (4.4 lbs)
Relay Mounting Screws (#8–32) Tightening Torque
Minimum: 1.4 Nm (12 in-lb)
Maximum: 1.7 Nm (15 in-lb)
Terminal Connections
Terminal Block
Screw Size: #6
Ring Terminal Width: 0.310 in maximum
Terminal Block Tightening Torque
Minimum: 0.9 Nm (8 in-lb)
Maximum: 1.4 Nm (12 in-lb)
Compression Plug Tightening Torque
Minimum: 0.5 Nm (4.4 in-lb)
Maximum: 1.0 Nm (8.8 in-lb)
Compression Plug Mounting Ear Screw Tightening Torque
Minimum: 0.18 Nm (1.6 in-lb)
Maximum: 0.25 Nm (2.2 in-lb)
Type Tests
Environmental Tests
Enclosure Protection: IEC 60529:2001 + CRDG:2003
IP65 enclosed in panel
IP20 for terminals
IP54-rated terminal dust protection
assembly (SEL Part #915900170). The
10°C temperature derating applies to
the temperature specifications of the
relay.
Vibration Resistance: IEC 60255-21-1:1988,
Class 1 Endurance
Class 2 Response
IEC 60255-21-3:1993, Class 2
Shock Resistance: IEC 60255-21-2:1988,
Class 1 Shock Withstand, Bump
Class 2 Shock Response
Cold: IEC 60068-2-1:2007
–40°C, 16 hours
Damp Heat, Steady State: IEC 60068-2-78:2001
40°C, 93% relative humidity, 4 days
Damp Heat, Cyclic: IEC 60068-2-30:2005
25–55°C, 6 cycles, 95% relative
humidity
Dry Heat: IEC 60068-2-2:2007
85°C, 16 hours
Dielectric Strength and Impulse Tests
Dielectric (HiPot): IEC 60255-5:2000
IEEE C37.90-2005
2.5 kVac on current inputs, ac voltage
inputs, contact I/O
2.0 kVac on analog inputs
1.0 kVac on analog outputs
2.83 kVdc on power supply
Impulse: IEC 60255-5:2000
IEEE C37.90-2005
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 61000-4-2:2008
IEC 60255-22-2:2008
Severity Level 4
8 kV contact discharge
15 kV air discharge
Radiated RF Immunity: IEC 61000-4-3:2010
IEC 60255-22-3:2007
10 V/m
IEEE C37.90.2-2004
35 V/m
Digital Radio Telephone RF
Immunity: ENV 50204:1995
Fast Transient, Burst
Immunity:
IEC 61000-4-4:2004
IEC 60255-22-4:2008
4 kV @ 5.0 kHz
2 kV @ 5.0 kHz for comm. ports