Schweitzer Engineering Laboratories SEL-487B-2 User manual

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
Bus Differential and Breaker Failure Relay
With Sampled Values or TiDL Technology
Key Features and Benefits
The SEL-487B-2 Bus Differential and Breaker Failure Relay with Sampled Values (SV) or TiDL®Technology provides
bus-current differential protection, circuit-breaker failure protection, and backup overcurrent protection.
➤High-Speed Differential Protection. Busbar differential protection operates in less than one cycle, which
increases system stability margins and reduces equipment damage.
➤Six Differential Zones. Flexible zone selection and six differential zones provide protection for multiple busbar
applications.
➤Failed CT Detection. The SEL-487B reliably indicates open and shorted CTs for alarming and/or blocking.
➤CT Ratio Mismatch. Differential protection accommodates as high as 10:1 CT ratio mismatch without auxiliary CTs.
➤External Fault Security. External fault detection logic secures differential protection for external faults with
minimal CT requirements.
➤Overcurrent Elements. Instantaneous and inverse time-overcurrent elements can provide backup protection for
each terminal.
➤Voltage Elements. Negative- and zero-sequence, over- and undervoltage elements can supervise the differential element.
➤Three Check Zones. Three dedicated check zones in each relay can supervise complex bus differential schemes.
➤Breaker Failure. Apply the relay to supply breaker failure protection for all supported breakers. Logic for breaker
failure retrip and initiation of transfer tripping is included.
➤Ethernet Access. The Ethernet card grants access to all relay functions. Use IEC 61850 Manufacturing Message
Specification (MMS) or DNP3 protocol directly to interconnect with automation systems. You can also connect to
DNP3 networks through a communications processor. Use File Transfer Protocol (FTP) for high-speed data collection.
➤Serial Data Communication. The relay can communicate serial data through SEL ASCII, SEL Fast Message,
SEL Fast Operate, MIRRORED BITS®, and DNP3 protocols.
SEL-487B-2 Bus Differential and
Breaker Failure Relay

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
2
➤Automation. The enhanced automation features include programmable elements for local control, remote control,
protection latching, and automation latching. Local metering on the large front-panel LCD eliminates the need for
separate panel meters. Serial and Ethernet links efficiently transmit key information, including metering data, protection
element and control I/O status, IEC 61850 Edition 2 GOOSE messages, Sequential Events Recorder (SER)
reports, relay summary event reports, and time synchronization. Apply expanded SELOGIC®control equations with
math and comparison functions in control applications. Incorporate as many as 1000 lines of automation logic to
accelerate and improve control actions.
➤Battery Monitoring. An alarm contact provides notification of substation battery voltage problems even if voltage
is low only during trip or close operations.
➤Digital Secondary Systems (DSS) Technologies. You can order the relay as either an SV subscriber relay or a
TiDL relay. DSS capable relays receive current and voltage information that is published by remote merging units
instead of standard PT and CT inputs. DSS technologies reduce copper cable lengths and associated installation
labor costs and improve the overall safety of the substation.
➤IEC 61850-9-2LE SV Relay. The SV subscriber relay can subscribe to current and voltage information that is
published by as many as seven SV merging units that are compliant with the IEC 61850-9-2LE guideline.
➤TiDL Relay. The TiDL relay can receive current and voltage information from as many as eight SEL-TMUs (TiDL
Merging Units) over direct point-to-point fiber-optic connections. The TiDL relay automatically synchronizes data
collection, alleviating the need or impact of an external clock on protection.
➤Selective Protection Disabling. The subscriber or TiDL relay provides selective disabling of protection functions
by using hard-coded logic or available torque-control equations in case of a loss of communications between your
merging unit and relay that results in the loss of relevant analog data.
➤Current Summation. The relay can combine multiple SV stream currents to simplify external wiring.
➤Six Independent Settings Groups. The relay includes group logic to adjust settings for different operating conditions,
such as station maintenance, seasonal operations, emergency contingencies, loading, source changes, and adjacent
relay settings changes. Select the active group settings by control input, command, or other programmable conditions.
➤Parallel Redundancy Protocol (PRP). PRP provides seamless recovery from any single Ethernet network failure.
The Ethernet network and all traffic are fully duplicated with both copies operating in parallel.
➤IEC 61850 Operating Modes. The relay supports IEC 61850 standard operating modes such as Test, Blocked,
On, and Off.
➤IEEE 1588, Precision Time Protocol (PTP). PTP provides high-accuracy timing over an Ethernet network.
➤Digital Relay-to-Relay Communications. MIRRORED BITS communications can monitor internal element conditions
between bays within a station, or between stations, using SEL fiber-optic transceivers. Send digital, analog, and
virtual terminal data over the same MIRRORED BITS channel.
➤Sequential Events Recorder (SER). The SER records the last 1000 events, including setting changes, startups,
and selectable logic elements.
➤Oscillography and Event Reporting. The relay records voltages, currents, and internal logic points at a sampling
rate as fast as 8 kHz. Offline phasor and harmonic-analysis features allow investigation of bay and system performance.
Time-tag binary COMTRADE event reports with high-accuracy time stamping for accuracy better than 10 s.
➤Digitally Signed Upgrades. The relay supports upgrading the relay firmware with a digitally signed upgrade file.
The digitally signed portion of the upgrade file helps ensure firmware and device authenticity after it is sent over a
serial or Ethernet connection.
➤Increased Security. The relay divides control and settings into seven relay access levels; the relay has separate
breaker, protection, automation, and output access levels, among others. Set unique passwords for each access level.
➤Rules-Based Settings Editor. You can communicate with and set the relay by using an ASCII terminal or use
Grid Configurator to configure the relay and analyze fault records with relay element response. Use as many as
200 aliases to rename any digital or analog quantity in the relay.

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
3
Functional Overview
SV
The SEL-487B subscribes to data streams that are published
by merging units, such as the SEL-421-7 SV Publisher or
SEL-401 Protection, Automation, and Control Merging
Unit. The SEL-421-7 SV Publisher provides full backup
protection while the SEL-401 can provide basic phase
overcurrent and breaker-failure protection in the absence
of communication. The data may be synchronized using
Precision Time Protocol (PTP).
TiDL
The SEL-487B-2 TiDL receives and automatically syn-
chronizes data streams from connected and commissioned
SEL-TMUs. The TiDL technology does not require an
external time source for local relay protection functions.
Figure 1 SEL-487B Functional Overview
27
59
DFR LGC MET
SBM
RTU SER
SEL-487B-2
50 50 50 50 50 50 50
51 51 51 51 51 51 51
50BF 50BF 50BF 50BF 50BF 50BF 50BF
8787
Zone 1 Zone 2
DSS
Inputs
Process
Bus
Mapped
Voltages
Mapped Zone 2 Currents and
Breaker Status
Mapped Zone 1 Currents and
Breaker Statuses ANSI NUMBERS/ACRONYMS AND FUNCTIONS
27/59 Over- and Undervoltage
50 Overcurrent (Phase)
50BF Breaker Failure Overcurrent
51 Time-Overcurrent (Phase)
87 Current Differential
ADDITIONAL FUNCTIONS
16 SEC Access Security (Serial, Ethernet)
85 RIO SEL MIRROREDBITS Communications
DFR Event Reports
LGC SELOGIC Control Equations
MET High-Accuracy Metering
RTU Remote Terminal Unit
SBM Station Battery Monitor
SER Sequential Events Recorder
ADDITIONAL FEATURES
Open CT Detection
Three Independent Check Zones
Disconnect Status and Monitoring Logic for 60 Disconnects
Single-Relay Application: 2 Three-Phase Zones for as many as 7 Terminals
Two-Relay Application: 3 Three-Phase Zones for as many as 10 Terminals
Three-Relay Application: 6 Single-Phase Zones for as many as 21 Terminals
Five-port Ethernet card ordering option depicted.
4
EIA-232
2
Ethernet
Station Bus
(Ports 5C, 5D)
1
IRIG-B
2
Ethernet
Process Bus
(Ports 5A, 5B)
1
Ethernet
Enginnering
Access
(Port 5E)
16 S
E
C
85
RIO
Figure 2 SV Network
Process Bus
q
qTime synchronization
is required for SV
communications. Time
synchronization can be
done over a process
bus or station bus
Figure 3 SEL TiDL System
T-Protocol

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
4
Protection Features
Differential Protection
The SEL-487B includes six independent current differ-
ential elements. Operating time for internal faults, including
high-speed output contact closure, is less than one cycle.
Figure 4 shows an example of an internal fault and dif-
ferential element operation.
Each of the differential elements provides the following:
➤Fast operating times for all busbar faults
➤Security for external faults with heavy CT saturation
➤Security with subsidence current present
➤High sensitivity for busbar faults
➤Minimum delay for faults evolving from external
to internal faults
Figure 5 shows a block diagram of one of the six differ-
ential protection elements.
CT saturation is one of the main factors to address when
considering relay security. Because of the high sampling
rate, the fault detection logic detects external faults in less
than 2 ms by comparing the rate of change of the restraint
and operating currents. Following the detection of an
external fault, the relay enters a high-security mode, during
which it dynamically selects a higher slope for the differ-
ential elements (see Figure 5). Figure 6 shows an exter-
nal fault with heavy CT saturation, without differential
element operation.
Dynamic Zone Configuration
The SEL-487B dynamically assigns the input currents to
the correct differential elements without the need for aux-
iliary relays. Connect the digital inputs from the busbar
disconnect auxiliary contacts directly to the relay. SELOGIC
control equations and zone selection logic will correctly
assign the currents to the differential elements, even for
complex bus arrangements such as the one in Figure 7.
Busbar configuration information, as a function of the
disconnect status, is readily available. Figure 8 depicts
the response of the relay to the ZONE command, showing
the terminals and bus zones assigned to each protection zone.
Figure 4 Differential Element Operation in Less Than
One Cycle for Internal Faults
Figure 5 External Fault Detection Logic Increases
Differential Element Security
Time (s)
Current (A)
0 0.05 0.10 0.15 0.20
0
5
–5
0
0
5
10
15
20
Fault
Inception
Internal
Fault Detection (<1 cycle)
IO1
IO2
Fault
Detection Logic
Differential
Element Trip
Output
Internal
Fault
External
Fault
CT
Supervision
Slope 1
Slope 2
Current
Input I01
Current
Input I18
IOP
IRT
Figure 6 Differential Element Does Not Operate for
External Fault With Heavy CT Saturation
–50
0
50
100
–150
0
–100
–50
0
50
Current (A)
0.05 0.10 0.15 0.20
Time (s)
(No Differential
Element Operation)
IO1
IO2
Internal
Fault Detection

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
5
Closing disconnect DS2 combines Zone 1 and Zone 2,
resulting in a single zone. Figure 9 shows the new pro-
tection zone configuration. In this combination, Zone 1
includes North and East bus-zones. Figure 10 shows the
new Zone 1 that includes bus-zones North and East.
Zone Selection Logic
Busbar protection requires assignment of the correct cur-
rent values to the appropriate differential elements as a
function of user-defined conditions. To achieve this, the
SEL-487B employs a two-step process:
➤Evaluates the user-defined conditions.
➤Assigns the currents to the differential element of
the appropriate zone.
Current assignment conditions vary from simple to com-
plex. A simple condition would be a statement such as
“always include this terminal in the differential calcula-
Figure 7 Bus-Zone Protection Based on Disconnect
Switch Positions
=>>ZONE <Enter>
BUS PROTECTION
Rinadel Station
Terminals in Protection Zone 1
HELIUM SILICON
Bus-Zones in Protection Zone 1
NORTH
Terminals in Protection Zone 2
BORON ARGON LITHIUM
Bus-Zones in Protection Zone 2
EAST
Terminals in Protection Zone 3
SILICON KRYPTON
Bus-Zones in Protection Zone 3
SOUTH
Terminals in Protection Zone 4
SODIUM NEON
Bus-Zones in Protection Zone 4
WEST
=>>
Figure 8 Result of ZONE Command, Indicating the
Protection Zone Configuration According to Disconnect
Switch Positions
52
Silicon
Zone 1
Zone 2 Zone 4
Zone 3
52
Argon
52
Lithium
5252
Sodium
Neon
North
52
Boron
East West
South
DS1
DS2 DS3
52
Helium
52
Krypton
Figure 9 Bus Arrangement With Disconnect DS2 Closed;
the New Zone 1 That Includes Bus Zones North and East
=>>ZONE <Enter>
BUS PROTECTION
Rinadel Station
Terminals in Protection Zone 1
HELIUM SILICON BORON ARGON
LITHIUM
Bus-Zones in Protection Zone 1
NORTH EAST
Terminals in Protection Zone 3
SILICON KRYPTON
Bus-Zones in Protection Zone 3
SOUTH
Terminals in Protection Zone 4
SODIUM NEON
Bus-Zones in Protection Zone 4
WEST
=>>
Figure 10 Result of ZONE Command, Showing the
Protection Zone Configuration After Zone 1 Merges With
Zone 2
52
Silicon
Zone 1
Zone 4
Zone 3
52
Argon
52
Lithium
5252
Sodium
Neon
North
52
Boron
East West
South
DS1
DS2 DS3
52
Helium
52
Krypton

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
6
tions.” A more complex condition statement could be
“when Disconnect 2 is closed, and the transfer discon-
nect is open.”
SELOGIC control equations provide the mechanism by
which the user enters the conditions for assigning the
currents to the differential elements when these condi-
tions are met. When a SELOGIC control equation becomes
true (e.g., the disconnect is closed), the relay dynamically
assigns the current to the differential elements. Conversely,
when the SELOGIC control equation is false (the discon-
nect is open), the relay dynamically removes the currents
from the differential elements. This is also true for the trip
output. When the SELOGIC control equation of a termi-
nal is false, the relay issues no trip signal to that terminal.
Table 1 shows a simple case where the disconnect status
is the only condition for the relay to consider.
End-Zone Protection
To illustrate the flexibility of use of SELOGIC control
equations for user-defined conditions, consider the ease
of achieving end-zone protection with the SEL-487B.
Figure 11 shows fault F1 between an open circuit breaker
and CT of a feeder at a substation. This area is a dead zone
because neither busbar protection nor local line protec-
tion can clear this fault; the remote end of the feeder must
clear this fault. Because the feeder circuit breaker is already
open, operation of the busbar protection serves no pur-
pose. The busbar protection must not operate for this fault.
By including the circuit breaker auxiliary contact in one
of the SELOGIC control equations (Figure 12), we can
cause the value of the SELOGIC control equation to be
false when the circuit breaker is open, removing the cur-
rent from the differential element calculations. This
capability ensures stability of the busbar protection. By
our use of SELOGIC control equations and normal com-
munications channels to configure the protection system,
the relay sends a trip signal to the remote end of the feeder.
Check Zones
The SEL-487B provides three completely independent
check zones, each with its own adaptive differential ele-
ment. Supervise zone differential elements by using the
independent check zones to monitor all incoming sources
and outgoing feeders on a per-phase basis. During an
internal fault, the check zone differential element will
assert. During an external fault, the check zone element
will remain deasserted.
CT Supervision
Open or shorted current transformers produce equal and
opposite changes in restraint and operate current. The
advanced CT supervision in the SEL-487B monitors dif-
ferential zone restraint and operating current for these
changes, to provide rapid and dependable detection of
open or shorted CT conditions. Use the CT supervision
logic in zone trip equations.
Disconnect Status Monitor
Figure 13 shows the disconnect open and close contact
relationship. During the open-to-close operation, the 89b
contact must open (disconnect is CLOSED) during the
transition zone before the main contact arcing starts. The
89a contact must close in this transition zone.
During the close-to-open operation, the 89b contact must
close during the transition zone after the main contact
arcing is extinguished (disconnect is OPEN), as shown in
Figure 13. The 89a contact must open in this transition zone.
Table 2 shows the four possible disconnect auxiliary con-
tact combinations and how the relay interprets each com-
bination.
Table 1 Conditions for Automatic Terminal Assignment
Example of Condition
SELOGIC
Control
Equation
Result
Consider
Terminal in
Protection
Calculations?
Issue
Trip?
Disconnect is open False No No
Disconnect is closed True Yes Yes
Figure 11 Fault Between Breaker and CT
Busbar Primary
Fault Current
Circuit
Breaker Open
End-Zone
Fault
52
F1
Figure 12 Bus Protection Is Not Affected by Fault, F1;
Use Transfer Trip to Clear the Fault
Busbar Primary Fault
Current
End-Zone
Fault
52a Auxiliary
Contact
52
F1

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
7
Tie-Breaker Configurations
Figure 14, Figure 15, and Figure 16 show three tie-
breaker schemes:
➤Two CTs configured in overlap (Figure 14)
➤A single CT with two cores configured in overlap
(Figure 15)
➤Two CTs configured with a differential element
across the breaker (Figure 16)
Configure any one of these schemes without using exter-
nal auxiliary relays. Figure 14 and Figure 15 also show
the tie breaker closing onto an existing fault, F1. The
SEL-487B includes tie-breaker logic to prevent the loss
of both zones for this fault.
T
Table 2 Disconnect Status as a Function of the
Auxiliary Contacts
89a 89b Relay 89 Status
Interpretation
00Closed
01Open
10Closed
11Closed
Figure 13 Disconnect Switch Auxiliary Contact Requirements for the Zone Selection Logic; No CT Switching Required
Closed
89a Status
Open Open
Closed Closed
89b Status
Open
Disconnect Switch Starts to Close
Disconnect Switch Starts to Open
Open
Intermediate
Position
Intermediate
Position
Arcing Closed Arcing Open
Closing
qw
q
w
Opening
Main Contact Status
Intermediate
Position
Intermediate
Position
Figure 14 Two CTs Configured in Overlap
Figure 15 A Single CT With Two CT Cores Configured in
Overlap
52
Bus 1 Bus 2
B1
F1
B2
Bus 1 Bus 2
B1
B2
52
F1

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
8
Configure one of the differential zones as a differential
across the tie breaker. This arrangement has the follow-
ing advantages:
➤Both main zones are secure for a fault between the
tie breaker and the CT.
➤Only one main zone is tripped for a fault between
the tie breaker and the CT (as opposed to both main
zones with an overlapping tie-breaker arrangement).
Applications
Figure 17 and Figure 18 show a station with a double bus configuration in both a SV installation (Figure 17) and a TiDL
installation (Figure 18).
Figure 16 Two CTs Configured With a Differential
Element Across the Breaker
52
Bus 1 Bus 2
B1 B2
87
Figure 17 Double-Breaker Double-Bus Application (SV)
Zone 1
Zone 2
PTP Time Source
qDC connections for breaker
status and control
wNo physical connection.
Published data do not contain
valid analog measurements
GOOSE Publications
1. TRIP01–TRIP18
Substation Yard
Control House
IW
IX
3
3
q
q
SV Publication
1. IW, VYw
2. IX, VZw
GOOSE Publications
1. 52AA1, 52AA2
IW VY
IX
3
3
q
q
SV Publication
1. IW, VY
2. IX, VZw
GOOSE Publications
1. 52AA1, 52AA2
SV Publication
1. IW, VYw
2. IX, VZw
GOOSE Publications
1. 52AA1, 52AA2
3
3
q
q
3
Process Bus
Network
SV Subscriber #1
SV Subscriber #2
SV Publisher
#1 IW
IX
#2

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
9
Additional Features
Front-Panel Display
The LCD shows event, metering, setting, and relay self-
test status information.
The LCD is controlled by the navigation pushbuttons
(Figure 20), automatic messages the relay generates, and
programmable display points. The rotating display
scrolls through any active, nonblank display points. If
none are active, the relay scrolls through displays of the
differential operating and restraint quantities, the termi-
nals in each enabled zone, and the primary current and
voltage values. Each display remains for 5 seconds
Figure 19 and Figure 20 show close-up views of the front
panel of the SEL-487B. The front panel includes a
128 x 128 pixel, 3" x 3" LCD screen; 24 LED target indi-
cators; and 12 direct-action control pushbuttons with
indicating LEDs for local control functions. You can use
easily changed slide-in labels to custom configure target
and pushbutton identification. Use the capabilities of the
SEL-487B front panel to integrate a wide range of con-
trol and system annunciation functions.
Figure 18 Double-Breaker Double-Bus Application (TiDL)
Zone 1
Zone 2
qDC connections for breaker
status and control
Substation Yard
Control House
3
3
q
q
3
3
q
q
3
TiDL Relay
TiDL Relay
TiDL Relay
#1 #2 #4
Figure 19 Front Panel With 24 Tricolor Target LEDs and
12 Pushbuttons
Figure 20 Front-Panel Display and Pushbuttons

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
10
before the display continues scrolling. Any message the
relay generates because of an alarm condition takes prece-
dence over the rotating display.
Status and Trip Target LEDs
The SEL-487B includes programmable target LEDs, as
well as programmable direct-action control pushbuttons/
LEDs on the front panel. Figure 19 shows these targets.
The SEL-487B features a versatile front panel that you
can customize to fit your needs. Use SELOGIC control
equations and slide-in configurable front-panel labels to
change the function and identification of target LEDs
and operator control pushbuttons and LEDs. The blank
slide-in label set is included with the SEL-487B. You can
use templates supplied with the relay or hand label sup-
plied blank labels and print label sets from a printer.
Communications Features
See Specifications on page 18 for specific supported protocols.
The relay offers the following communications features:
➤Four independent EIA-232 serial ports.
➤Access to event history, relay status, and meter
information from the communications ports.
➤Password-controlled settings management and
automation features.
➤SCADA interface capability, including FTP,
IEC 61850, DNP3 LAN/WAN (via Ethernet), and
DNP3 (via serial port). The relay does not require
special communications software. You only need
ASCII terminals, printing terminals, or a computer
supplied with terminal emulation and a serial
communications port.
Ethernet Card
The Ethernet card has five small form-factor pluggable
(SFP) ports.aPORT 5A and PORT 5B are reserved for the
process bus network. PORT 5C and PORT 5D are reserved
for the station bus network. The process and station bus
networks support PRP and fast failover redundancy
modes. PORT 5E operates on an isolated network with a
unique IP address making it ideal for engineering and
data access. All ports support 100 Mbps speeds. PORT 5A
and PORT 5B also support 1 Gbps speeds to satisfy poten-
tially large traffic requirements on the process bus. The
process bus, station bus, and engineering access net-
works use separate MAC addresses and are logically
delineated, including in the Configured IED Description
(CID) file.b
Use popular Telnet applications for easy terminal com-
munications with SEL relays and other devices. Transfer
data at high speeds for fast file uploads. The Ethernet
card communicates using FTP applications for easy and
fast file transfers.
Communicate with SCADA by DNP3 and other substation
IEDs by using IEC 61850 Manufacturing Message Speci-
fication (MMS) and GOOSE messaging.
Choose Ethernet connection media options for primary
and standby connections:
➤10/100BASE-T twisted pair networkc
➤100BASE FX fiber-optic network
➤1000BASE-X fiber-optic networkd
Figure 21 System Functional Overview
Automation
Over Ethernet:
Five Ethernet Ports
(PORT 5A, PORT 5B, PORT 5C,
PORT 5D, and PORT 5E)
100BASE-FX
1000BASE-X
To Remote SEL Relay
Using M
IRRORED B ITS
Spare
Front Port Local
Operator or
Engineering Access
IEC 61850 or
DNP LAN/WAN
Communications
Processor
Serial Communication:
Three Rear EIA-232 Ports
One Front EIA-232 Port
aSFP transceivers are not included with the card and must be ordered
separately. See selinc.com/products/sfp for a list of compatible SFP
transceivers.
bThis paragraph describes the five-port Ethernet cardordering option.
It does not apply to the four-port Ethernet card ordering option.
cFour-port Ethernet card ordering option only.
dGigabit speeds are only available on PORT 5A and PORT 5B of the five-
port Ethernet card ordering option.

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
11
Telnet and FTP
Use Telnet to access relay settings, metering, and event
reports remotely by using the ASCII interface. Use FTP to
transfer settings files to and from the relay via the high-
speed Ethernet port.
DNP3 LAN/WAN
DNP3 LAN/WAN provides the relay with DNP3 Level 2
Outstation functionality over Ethernet. Configure DNP3
data maps for use with specific DNP3 masters.
PTP
The Ethernet card provides the ability for the relay to accept
IEEE 1588 PTPv2 for data time synchronization. PTP
support includes the Default, Power System, and Power
Utility Automation Profiles. When connected directly to
a grandmaster clock providing PTP at 1-second synchro-
nization intervals, the relay can be synchronized to an
accuracy of ±100 ns in the PTP time scale.
SNTP Time Synchronization
Use SNTP to cost-effectively synchronize relays to as lit-
tle as ±1 ms with no time source delay. Use SNTP as a
primary time source, or as a backup to a higher accuracy
time input to the relay.
PRP
Use PRP to provide seamless recovery from any single
Ethernet network failure, in accordance with IEC 62439-3.
The Ethernet network and all traffic are fully duplicated
with both copies operating in parallel.
HTTP Web Server
The relay can serve read-only webpages displaying cer-
tain settings, metering, and status reports. The web server
also allows quick and secure firmware upgrades over
Ethernet. As many as four users can access the embedded
HTTP server simultaneously.
IEC 61850 Ethernet Communications
IEC 61850 Ethernet-based communication protocols
provide interoperability between intelligent devices within
the substation. Standardized logical nodes allow inter-
connection of intelligent devices from different manufac-
turers for monitoring and control of the substation.
Eliminate system RTUs by streaming monitor and con-
trol information from the intelligent devices directly to
remote SCADA client devices.
You can order the relay with IEC 61850 protocol for relay
monitor and control functions, including:
➤As many as 128 incoming GOOSE messages. You
can use the incoming GOOSE messages to control
as many as 256 control bits in the relay with <3 ms
latency from device to device depending on network
design. These messages provide binary control
inputs to the relay for high-speed control functions
and monitoring.
➤As many as eight outgoing GOOSE messages.
Configure outgoing GOOSE messages for Boolean
or analog data such as high-speed control and
monitoring of external breakers, switches, and other
devices. Boolean data are provided with <3 ms latency
from device to device depending on network design.
➤IEC 61850 Data Server. The relay equipped with
embedded IEC 61850 Ethernet protocol provides
data according to predefined logical node objects.
Each relay supports as many as seven unbuffered
MMS report client associations. Relevant Relay
Word bits are available within the logical node
data, so status of relay elements, inputs, outputs, or
SELOGIC control equations can be monitored.
➤As many as 256 virtual bits. Configure the virtual
bits within GOOSE messaging to represent a variety
of Boolean values available within the relay. These
bits that the relay receives are available for use in
SELOGIC control equations.
➤As many as 64 remote analog outputs. Assign the
remote analog outputs to virtually any analog quantity
available in the relay. You can also use SELOGIC
math variables to develop custom analog quantities
for assignment as remote analog outputs. Remote
Figure 22 Example PTP Network
GPS

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
12
analog outputs that use GOOSE messages provide
peer-to-peer transmission of analog data. Each relay
can receive as many as 256 remote analog inputs
and use those inputs as analog quantities within
SELOGIC control equations.
➤IEC 61850 standard operating modes. The relay
supports Test, Blocked, On, and Off. The relay also
supports Simulation mode for added flexibility.
MMS File Services
This service of IEC 61850 MMS provides support for file
transfers completely within an MMS session. All relay
files that can be transferred via FTP can also be transferred
via MMS file services.
MMS Authentication
When enabled via a setting in the Configured IED Descrip-
tion (CID) file, the relay requires authentication from any
client requesting to initiate an MMS session.
Architect Software
Use ACSELERATOR Architect SEL-5032 Software to
manage the IEC 61850 configuration for devices on the
network. This Windows-based software provides easy-
to-use displays for identifying and binding IEC 61850
network data among logical nodes that use IEC 61850-
compliant CID files. Architect uses CID files to describe
the data available in each relay.
Serial Communications
MIRRORED BITS Communications
The SEL patented MIRRORED BITS technology provides
bidirectional relay-to-relay digital communication.
Figure 23 shows two relays with SEL-2815 Fiber-Optic
Transceivers that use MIRRORED BITS communications.
MIRRORED BITS communications can operate simultane-
ously on any two serial ports. This bidirectional digital
communication creates additional outputs (transmitted
MIRRORED BITS) and additional inputs (received
MIRRORED BITS) for each serial port operating in the
MIRRORED BITS communications mode.
Communicated information can include digital, analog,
and virtual terminal data. Virtual terminal allows opera-
tor access to remote relays through the local relay. You
can use this MIRRORED BITS protocol to transfer infor-
mation between stations to enhance coordination and
achieve faster tripping.
Open Communications Protocols
The relay does not require special communications software. ASCII terminals, printing terminals, or a computer sup-
plied with terminal emulation and a serial communications port are all that is required. Table 3 lists a brief description of
the terminal protocols.
Figure 23 Integral Communication Provides Secure Protection, Monitoring, and Control as Well as Terminal Access to
Both Relays Through One Connection
Fiber-Optic Cable
SEL-2815 SEL-2815
Bus 1 Bus 2
1Transmission Line 2
Digital, Analog, and Virtual Terminal Data
Other
Relays
Other
Relays
TX
RX
SEL-400 Series Relay
TX
RX
SEL-400 Series Relay

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
13
Automation
Flexible Control Logic and
Integration Features
Use the control logic to perform the following:
➤Replace traditional panel control switches
➤Eliminate remote terminal unit (RTU)-to-bay wiring
➤Replace traditional latching relays
➤Replace traditional indicating panel lights
Eliminate traditional panel control switches with 64 local
control points. Set, clear, or pulse local control points
with the front-panel pushbuttons and display. Program
the local control points to implement your control scheme
via SELOGIC control equations. Use the local control
points for such functions as trip testing, enabling/disabling
reclosing, and tripping/closing circuit breakers.
Eliminate RTU-to-bay wiring with 96 remote control
points per relay. Set, clear, or pulse remote control points
via serial port commands. Incorporate the remote control
points into your control scheme via SELOGIC control
equations. Use remote control points for SCADA-type
control operations (e.g., trip, close, settings group selection).
Replace traditional latching relays for such functions as
remote control enable with 64 latching control points.
Program latch set and latch reset conditions with SELOGIC
control equations. Set or reset the latch control points via
control inputs, remote control points, local control points,
or any programmable logic condition. The relay retains
the states of the latch control points after turning on fol-
lowing a power interruption.
Replace traditional indicating panel lights and switches
with as many as 24 latching target LEDs and as many as
12 programmable pushbuttons with LEDs. Define cus-
tom messages (i.e., BREAKER OPEN) to report power sys-
tem or relay conditions on the large format LCD. Control
displayed messages with SELOGIC control equations by
driving the LCD via any logic point in the relay.
SELOGIC Control Equations With
Expanded Capabilities and Aliases
Expanded SELOGIC control equations put relay logic in
the hands of the engineer. Assign inputs to suit your
application, logically combine selected bay elements for
various control functions, and assign outputs to your
logic functions.
Programming SELOGIC control equations consists of
combining relay elements, inputs, and outputs with
SELOGIC control equation operators (Table 4). Any ele-
ment in the Relay Word can be used in these equations.
For complex or unique applications, these expanded
SELOGIC functions allow superior flexibility.
Table 3 Open Communications Protocol
Type Description
ASCII Plain-language commands for human and simple machine communications. Use for metering, setting, self-test
status, event reporting, and other functions.
Compressed ASCII Comma-delimited ASCII data reports. Allows external devices to obtain bay data in an appropriate format for
direct import into spreadsheets and database programs. Data are checksum protected.
Extended Fast Meter, Fast
Operate, and Fast SER
Binary protocol for machine-to-machine communications. Quickly updates communications processors, RTUs,
and other substation devices with metering information, bay element, I/O status, time-tags, open and close
commands, and summary event reports. Data are checksum protected. Binary and ASCII protocols operate
simultaneously over the same communications lines so that control operator metering information is not lost
while a technician is transferring an event report.
Ymodem Support for reading event, settings, and oscillography files.
DNP3 Level 2 Outstation DNP with point remapping. Includes access to metering data, protection elements, contact I/O, targets, SER,
relay summary event reports, and settings groups.
MIRRORED BITS SEL protocol for exchanging digital and analog information among SEL relays and for use as low-speed termi-
nal connection.
IEC 61850 Ethernet-based international standard for interoperability between intelligent devices in a substation.
PRP PRP provides redundant Ethernet network capabilities for seamless operation in the event of loss to one network.
SNTP Ethernet-based SNTP for time synchronization among relays.
FTP and Telnet Use Telnet to establish a terminal-to-relay connection over Ethernet. Use FTP to move files in and out of the
relay over Ethernet.

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
14
Use the relay alias capability to assign more meaningful
names to analog and Boolean quantities. This improves
the readability of customized programming. Use as many
as 200 aliases to rename any digital or analog quantity.
The following is an example of possible applications of
SELOGIC control equations that use aliases.
Add programmable control functions to your relay and
automation systems. New functions and capabilities enable
using analog values in conditional logic statements. The
following are examples of possible applications of
SELOGIC control equations with expanded capabilities.
➤Emulate a motor-driven reclose timer, including
stall, reset, and drive-to-lockout conditions.
➤Scale analog values for SCADA retrieval.
➤Initiate remedial action sequence based on load
flow before fault conditions.
➤Interlock breakers and disconnect switches.
➤Restrict breaker tripping in excessive duty
situations without additional relays.
➤Hold momentary change-of-state conditions for
SCADA polling.
Metering and Monitoring
Access a range of useful information in the relay with the
metering function. Metered quantities include fundamen-
tal primary and secondary current and voltage magni-
tudes and angles for each terminal. Secondary quantities
also include the PT ratio and CT ratio of each terminal.
Zone information displays primary current and voltage
magnitudes and angles for each terminal and also
includes the polarity of each CT and the bus-zones in
each of the protective zones at the station. The same
information is available in secondary quantities and
includes both the CT ratio and polarity. Differential
metering shows the operating and restraint currents, as
well as the reference current, for each zone.
Event Reporting and SER
Event reports and SER features simplify post-fault analy-
sis and help improve your understanding of both simple
and complex protective scheme operations. These fea-
tures also aid in testing and troubleshooting relay settings
and protective schemes.
Table 4 SELOGIC Control Equation Operators
Operator Type Operators Comments
Boolean AND, OR, NOT Allows combination of measuring units.
Edge Detection F_TRIG, R_TRIG Operates at the change of state of an internal function.
Comparison >, , =, <=, <, < >
Arithmetic +, –, *, / Uses traditional math functions for analog quantities in an easily programmable equation.
Numerical ABS, SIN, COS, LN, EXP,
SQRT, LOG
Precedence Control ( ) Allows multiple and nested sets of parentheses.
Comment #, (* *) Provides for easy documentation of control and protection logic.
=>>SET T <Enter>
1: PMV01,THETA
(assign the alias “THETA” to math variable PMV01)
2: PMV02,TAN
(assign the alias “TAN” to math variable PMV02)
=>>SET L <Enter>
1: # CALCULATE THE TANGENT OF THETA
2: TAN:=SIN(THETA)/COS(THETA)
(use the aliases in an equation)
Table 5 Flexible Metering Capabilities and Large Screen
Display Eliminate Need for Panel Instruments (Sheet 1 of 2)
Capabilities Description
V01, V02, V03 Fundamental phase voltage magnitude and
angle in primary and secondary values
I01, I02, . . ., I21 Fundamental phase current magnitude and
angle in primary and secondary values
IOP, IRT, IREF Operating and restraint currents for each
zone, check zone, and the reference current
Bus Zones in
Protection Zone n
Names of the bus-zones in Protection
Zone n(where n= 1 to 6)
PTR, CTR PT ratio and CT ratio for each terminal
POL Polarity of each CT
Table 5 Flexible Metering Capabilities and Large Screen
Display Eliminate Need for Panel Instruments (Sheet 2 of 2)
Capabilities Description

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
15
Oscillography and Event Reporting
In response to a user-selected internal or external trigger,
the voltage, current, and element status information con-
tained in each event report confirms relay, scheme, and
system performance for every fault. The relay provides
sampling rates as fast as 8 kHz for analog quantities in a
COMTRADE file format, as well as eight-sample-per-
cycle and four-sample-per-cycle event reports. The relay
stores as much as 3 seconds of 8 kHz event data. The
relay supports inclusion of user-configurable analogs in
the events. Reports are stored in nonvolatile memory.
Relay settings operational in the relay at the time of the
event are appended to each event report.
Each relay provides event reports for analysis with soft-
ware such as SEL-5601-2 SYNCHROWAVE®Event Soft-
ware. With SYNCHROWAVEEvent, you can display
events from several relays to make the fault analysis eas-
ier and more meaningful. Because the different relays
time-stamp the events with values from their individual
clocks, be sure to time synchronize the relay with an
IRIG-B clock input or PTP source to use this feature.
Event Summary
Each time the relay generates a standard event report, it
also generates a corresponding event summary. This is a
concise description of an event that includes the follow-
ing information:
➤Relay/terminal identification
➤Event date and time
➤Event type
➤Event number
➤Time source
➤Active settings group
➤Targets asserted during the fault
➤Current magnitudes and angles for each terminal
➤Voltage magnitudes and angles
➤Terminals tripped for this fault
➤Breaker Status (open/close)
➤Bus-zones in Protection Zone n(n= 1–6)
With an appropriate setting, the relay sends an event
summary in ASCII text automatically to one or more
serial ports each time an event report is triggered.
SV Reporting
The SV Subscriber includes a comprehensive report of
the SV communication stream. The ASCII command
COM SV displays statistics information from the sample
values stream to aid in troubleshooting.
SER
Use this feature to gain a broad perspective of relay ele-
ment operation. Items that trigger an SER entry are select-
able and can include as many as 250 monitoring points,
such as I/O change-of-state and element pickup/dropout.
The relay SER stores the latest 1000 events.
Analog Signal Profiling
The relay provides analog signal profiling for as many as
20 analog quantities. Select any analog quantity mea-
sured or calculated by the relay for analog signal profil-
ing. You can select signal sampling rates of 1, 5, 15, 30,
and 60 minutes through settings. The analog signal pro-
file report provides a comma-separated variable (CSV)
list that you can load into any spreadsheet or database for
analysis and graphical display.
SELOGIC enable/disable functions can start and stop sig-
nal profiling based on Boolean or analog comparison
conditions.
Substation Battery Monitor for DC
Quality Assurance
The relay measures and reports the substation battery
voltage for one battery system. The battery monitor sup-
ports programmable threshold comparators and associ-
ated logic provides alarm and control for one battery and
charger. The relay also provides dual ground detection.
Monitor dc system status alarms with an SEL communi-
cations processor and trigger messages, telephone calls,
or other actions.
The measured dc voltage is reported in the METER display
via serial port communications and in the event report.
Use the event report data to see an oscillographic display
of the battery voltage. Monitor the substation battery
voltage drops during trip, close, and other control operations.

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
16
Diagrams and Dimensions
Figure 24 Rack-Mount Front Panel
Figure 25 SEL-487B-2 SV Subscriber Rear Panel
Figure 26 SEL-487B-2 TiDL Rear Panel
i7289a
TAR G ET
RESET
TRIP
ENABLED
SCHWEITZER
ENGINEERING
LABORATORIES
PORT F
ESC ENT
SEL-487B
PROTECTION AUTOMATION CONTROL
ENABLED
BKR FAIL
RELAY
TEST
MODE
87 (DIFF)
ENABLED
PT ALARM
ZONE 6
ZONE 4
ZONE 5
ZONE 3
V02 ON
V01 ON
ZONE 2
BKR FAIL
ZONE 1
87 (DIFF)
89 IN PROG
89 ALARM
59
TOS
27
87 BLOCKED
51
CT ALARM
50
IRIG LOCK
52 ALARM
V03 ON
BUS FAULT
Five-port Ethernet card ordering option depicted.
PORT 1
PORT 2
EIA-232
PORT 3
1
9
1
9
1
9
TIME IRIG–B
i7289a
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01 B
200
B
200
BAY 4
BAY 3
BAY 2BAY 1
31
GND
302928
27
2625
+
/H
–
/N
POWER
+
Vdc 1
MONITOR
Z
–
OUT01 OUT02 OUT03 OUT04 OUT05 OUT06 OUT07 OUT08 IN01 IN02 IN03 IN04 IN05 IN06 IN07 IN08 IN09 IN10 IN11 IN12 COM IN14 IN15 IN16 IN17 IN18 IN19 IN20 IN21 IN22 IN23 IN24 COM
IN13
HS HSHS HS HS HS
ACT LNK
100M
PORT 5E
ACT LNK ACT LNK
PORT 5D
ACT LNK
PORT 5CPORT 5B
ACT LNK
100/1000M
PORT 5A
Five-port Ethernet card ordering option depicted.
PORT 1
PORT 2
EIA-232
PORT 3
1
9
1
9
1
9
TIME IRIG–B
i7289a
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
B
200
B
200
BAY 4
BAY 3
BAY 2BAY 1
31
GND
302928
27
2625
+/H –/N
POWER
+
Vdc 1
Z
MONITOR
–
OUT01 OUT02 OUT03 OUT04 OUT05 OUT06 OUT07 OUT08 OUT14 OUT15 IN01 IN02 IN03OUT09 OUT10 OUT11 OUT12 OUT13 IN04 IN05 IN06 IN07 IN08
ACT LNK
100M
PORT 5E
ACT LNK ACT LNK
PORT 5DPORT 5C
ACT LNK
PORT 5B
ACT LNK
100/1000M
PORT 5A
EN AL
PORT 6A
EN AL
PORT 6B
EN AL
PORT 6C
EN AL
PORT 6D
EN AL
PORT 6E
EN AL
PORT 6F
EN AL
PORT 6G
EN AL
PORT 6H
TiDL CONNECTIONS ONLY

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
17
Models and Options
Consider the following options when ordering and con-
figuring the SEL-487B.
➤DSS connector type
➢IEC 61850-9-2LE-compliant SV subscriber
relay
➢SEL TiDL relay with T-Protocol
➤Chassis size
➢4U (U is one rack unit—1.75 in or 44.45 mm)
➤Chassis orientation and type
➢Horizontal rack mount
➢Horizontal panel mount
➢Vertical rack mount
➢Vertical panel mount
➤Power supply
➢24–48 Vdc
➢48–125 Vdc or 110–120 Vac
➢125–250 Vdc or 110–240 Vac
Figure 27 Dimensions for Rack- and Panel-Mount Models
Table 6 Interface Board Information
Board Name Inputs Description Outputs Description
INT2 8 Optoisolated, independent, level-sensitive 13 Standard Form A
2 Standard Form C
INT4 18 Two sets of 9 common optoisolated, level-sensitive 6 High-speed, high-current interrupting, Form A
6 Optoisolated, independent, level-sensitive 2 Standard Form A

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
18
➤Ethernet card options
➢Four-port Ethernet card with port combinations
of:
➣Four copper (10BASE-T/100BASE-TX)
➣Four fiber (100BASE-FX)
➣Two copper (10BASE-T/100BASE-TX) and
two fiber (100BASE-FX)
➢Five-port Ethernet card with small form-factor
pluggable (SFP) ports (100BASE-FX and
1000BASE-X)e
➤Communications protocols
➢Complete group of protocols
(SEL ASCII, SEL Compressed ASCII, SEL
Settings File Transfer, SEL Fast Meter, SEL
Fast Operate, SEL Fast SER, MIRRORED BITS
Communications), and DNP3
➢Above protocols plus IEC 61850 Edition 2
Contact the SEL factory or your local Technical Service
Center for ordering information (see Technical Support
on page 24). You can also view the latest ordering infor-
mation on the SEL website at selinc.com.
Specifications
eAll ports support 100 Mbps speeds. PORT 5A and PORT 5B also sup-
port 1 Gbps speeds.
Note: Because the SEL-487B-2 uses DSS, the relay operating times are
delayed. For SV applications, operating times are delayed by the configured
channel delay, CH_DLY. See <CrossRefBook>SV Network Delays on
page 17.25 in the SEL-400 Series Relays Instruction Manual for more
details. For TiDL applications, the operating times are delayed by a fixed
1 ms. Use caution when setting relay coordination to account for this added
delay.
Note: The metering and protection element accuracies specified for the
SEL-487B SV Subscriber Relay are valid only when using SEL merging
units. For SV applications, third-party SV publisher devices are supported,
but hardware accuracies and analog filtering need to be considered to
determine the effect on SEL-487B-2 SV Subscriber performance.
Compliance
Designed and manufactured under an ISO 9001 certified quality
management system
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference in which case the
user will be required to correct the interference at his own expense.
UL Listed to U.S. and Canadian safety standards
(File E212775; NRGU, NRGU7)
CE Mark
RCM Mark
General
Frequency and Rotation
System Frequency: 50/60 Hz
Phase Rotation: ABC
Power Supply
24—48 Vdc
Rated Voltage: 24–48 Vdc
Operational Voltage Range: 18–60 Vdc
Vdc Input Ripple: 15% per IEC 60255-26:2013
Interruption: 20 ms at 24 Vdc, 100 ms at 48 Vdc
per IEC 60255-26:2013
Burden
SV Relay: <35 W
TiDL Relay: <40 W
48—125 Vdc or 110—120 Vac
Rated Voltage: 48–125 Vdc, 110–120 Vac
Operational Voltage Range: 38–140 Vdc
85–140 Vac
Rated Frequency: 50/60 Hz
Operational Frequency
Range: 30–120 Hz
Vdc Input Ripple: 15% per IEC 60255-26:2013
Interruption: 14 ms @ 48 Vdc, 160 ms @ 125 Vdc
per IEC 60255-26:2013
Burden
SV Relay: <35 W, <90 VA
TiDL Relay: <40 W, <90 VA
125—250 Vdc or 110—240 Vac
Rated Voltage: 125–250 Vdc, 110–240 Vac
Operational Voltage Range: 85–300 Vdc
85–264 Vac
Rated Frequency: 50/60 Hz
Operational Frequency
Range: 30–120 Hz
Vdc Input Ripple: 15% per IEC 60255-26:2013
Interruption: 46 ms @ 125 Vdc, 250 ms @ 250 Vdc
per IEC 60255-26:2013
Burden
SV Relay: <35 W, <90 VA
TiDL Relay: <40 W, <90 VA
Control Outputs
Note: IEEE C37.90-2005 and IEC 60255-27:2013
Update Rate: 1/8 cycle
Make (Short Duration
Contact Current):
30 Adc
1,000 operations at 250 Vdc
2,000 operations at 125 Vdc
Limiting Making Capacity: 1000 W at 250 Vdc (L/R = 40 ms)
Mechanical Endurance: 10,000 operations
Standard
Rated Voltage: 24–250 Vdc
110–240 Vrms
Operational Voltage Range: 0–300 Vdc
0–264 Vrms

Schweitzer Engineering Laboratories, Inc. SEL-487B-2 Data Sheet
19
Operating Time: Pickup 6 ms (resistive load)
Dropout 6 ms (resistive load)
Short-Time Thermal
Withstand: 50 A for 1 s
Continuous Contact
Current:
6 A at 70°C
4 A at 85°C
Contact Protection: MOV protection across open contacts
264 Vrms continuous voltage
300 Vdc continuous voltage
Limiting Breaking
Capacity/Electrical
Endurance:
10,000 operations
10 operations in 4 seconds, followed by
2 minutes idle
Fast Hybrid (High-Speed High-Current Interrupting)
Rated Voltage: 48–250 Vdc
Operational Voltage Range: 0–300 Vdc
Operating Time: Pickup 0 µs (resistive load)
Dropout 8 ms (resistive load)
Short-Time Thermal
Withstand: 50 Adc for 1 s
Continuous Contact
Current:
6 Adc at 70°C
4 Adc at 85°C
Contact Protection: MOV protection across open contacts
300 Vdc continuous voltage
Limiting Breaking
Capacity/Electrical
Endurance:
10,000 operations
4 operations in 1 second, followed by
2 minutes idle
Note: Do not use hybrid control outputs to switch ac control signals.
Control Inputs
Optoisolated (For Use With AC or DC Signals)
INT2 Interface Board: 8 inputs with no shared terminals
INT4 Interface Board: 6 inputs with no shared terminals
18 inputs with shared terminals
(2 groups of 9 inputs with each group
sharing one terminal)
Voltage Options: 24, 48, 110, 125, 220, 250 V
Current Draw: <5 mA at nominal voltage
<8 mA for 110 V option
Sampling Rate: 2 kHz
DC Thresholds (Dropout thresholds indicate level-sensitive option)
24 Vdc: Pickup 19.2–30.0 Vdc;
Dropout <14.4 Vdc
Rated Voltage Resistive Break
Inductive Break
L/R = 40 ms (DC)
PF = 0.4 (AC)
24 Vdc 0.75 Adc 0.75 Adc
48 Vdc 0.63 Adc 0.63 Adc
125 Vdc 0.30 Adc 0.30 Adc
250 Vdc 0.20 Adc 0.20 Adc
110 Vrms 0.30 Arms 0.30 Arms
240 Vrms 0.20 Arms 0.20 Arms
Rated Voltage Resistive Break Inductive Break
24 Vdc 10 Adc 10 Adc (L/R = 40 ms)
48 Vdc 10 Adc 10 Adc (L/R = 40 ms)
125 Vdc 10 Adc 10 Adc (L/R = 40 ms)
250 Vdc 10 Adc 10 Adc (L/R = 20 ms)
48 Vdc: Pickup 38.4–60.0 Vdc;
Dropout <28.8 Vdc
110 Vdc: Pickup 88.0–132.0 Vdc;
Dropout < 66.0 Vdc
125 Vdc: Pickup 105–150 Vdc;
Dropout <75 Vdc
220 Vdc: Pickup 176–264 Vdc;
Dropout <132 Vdc
250 Vdc: Pickup 200–300 Vdc;
Dropout <150 Vdc
AC Thresholds (Ratings met only when recommended control input
settings are used)
24 Vac: Pickup 16.4–30.0 Vac rms;
Dropout <10.1 Vac rms
48 Vac: Pickup 32.8–60.0 Vac rms;
Dropout <20.3 Vac rms
110 Vac: Pickup 75.1–132.0 Vac rms;
Dropout <46.6 Vac rms
125 Vac: Pickup 89.6–150.0 Vac rms;
Dropout <53.0 Vac rms
220 Vac: Pickup 150.3–264.0 Vac rms;
Dropout <93.2 Vac rms
250 Vac: Pickup 170.6–264.0 Vac rms;
Dropout <106 Vac rms
Current Drawn: <5 mA at nominal voltage
<8 mA for 110 V option
Sampling Rate: 2 kHz
Communications Ports
EIA-232: 1 Front and 3 Rear
Serial Data Speed: 300–57600 bps
Ethernet Card Slot for Four-Port Ethernet Card
Ordering Option: 10/100BASE-T
Connector Type: RJ45
Ordering Option: 100BASE-FX fiber-optic Ethernet
Mode: Multi
Wavelength (nm): 1300
Source: LED
Connector Type: LC
Min. TX Pwr. (dBm): –19
Max. TX Pwr. (dBm): –14
RX Sens. (dBm): –32
Sys. Gain (dB): 13
Ethernet Card Slot for the Five-Port Ethernet Card
Ordering Option: 100BASE-FX fiber-optic Ethernet SFP
transceiver
Part Number: 8103-01 or 8109-01
Mode: Multi
Wavelength (nm): 1310
Source: LED
Connector Type: LC
Min. TX Pwr. (dBm): –24
Max. TX Pwr. (dBm): –14
Min. RX Sens. (dBm): –31
Max. RX Sens. (dBm): –12
Approximate Range: 2 km
Transceiver Internal
Temperature Accuracy: ±3.0°C

SEL-487B-2 Data Sheet Schweitzer Engineering Laboratories, Inc.
20
Transmitter Average
Optical Power Accuracy: ±3.0 dB
Received Average Optical
Input Power Accuracy: ±3.0 dB
Ordering Option: 1000BASE-LX fiber-optic Ethernet SFP
transceiver
Part Number: 8130-01, 8130-02, 8130-03, or 8130-04
Mode: Single
Wavelength (nm): 1310
Source: LED
Connector Type: LC
Transceiver Internal
Temperature Accuracy: ±3.0°C
Transmitter Average
Optical Power Accuracy: ±3.0 dB
Received Average Optical
Input Power Accuracy: ±3.0 dB
Ordering Option: 1000BASE-XD fiber-optic Ethernet SFP
transceiver
Part Number: 8130-05
Mode: Single
Wavelength (nm): 1550
Source: LED
Connector Type: LC
Min. TX Pwr. (dBm): –5
Max. TX Pwr. (dBm): 0
Min. RX Sens. (dBm): –24
Max. RX Sens. (dBm): –3
Approximate Range: 50 km
Transceiver Internal
Temperature Accuracy: ±3.0°C
Transmitter Average
Optical Power Accuracy: ±3.0 dB
Received Average Optical
Input Power Accuracy: ±3.0 dB
Ordering Option: 1000BASE-ZX fiber-optic Ethernet SFP
transceiver
Part Number: 8130-06, 8130-08, or 8130-10
Mode: Single
Wavelength (nm): 1550
Source: LED
Connector Type: LC
Part Number
8130-01 8130-02 8130-03 8130-04
Min. TX Pwr.
(dBm)
–9.5 –6 –5 –2
Max. TX Pwr.
(dBm)
–3 –1 0 3
Min. RX Sens.
(dBm)
–21 –22 –24 –24
Max. RX Sens.
(dBm)
–3 –3 –3 –3
Approximate
Range (km)
10 20 30 40
Transceiver Internal
Temperature Accuracy: ±3.0°C
Transmitter Average
Optical Power Accuracy: ±3.0 dB
Received Average Optical
Input Power Accuracy: ±3.0 dB
Ordering Option: 1000BASE-SX fiber-optic Ethernet SFP
transceiver
Part Number: 8131-01
Mode: Multi
Wavelength (nm): 850
Source: LED
Connector Type: LC
Min. TX Pwr. (dBm): –9
Max. TX Pwr. (dBm): –2.5
Min. RX Sens. (dBm): –18
Max. RX Sens. (dBm): 0
Approximate Range: 300 m for 62.5/125 m; 550 m for
50/125 m
Transceiver Internal
Temperature Accuracy: ±3.0°C
Transmitter Average
Optical Power Accuracy: ±3.0 dB
Received Average Optical
Input Power Accuracy: ±3.0 dB
Optional TiDL Communication Ports
Number of Ports: 8
Protocol: T-Protocol
Supported SFP
Transceivers: 8103-01 or 8109-01
Note: For SFP Transceiver specification, see Ethernet Card Slot for the Five-
Port Ethernet Card on page 19.
Time Inputs
IRIG Time Input—Serial PORT 1
Input: Demodulated IRIG-B
Rated I/O Voltage: 5 Vdc
Operational Voltage Range: 0–8 Vdc
Logic High Threshold: 2.8 Vdc
Logic Low Threshold: 0.8 Vdc
Input Impedance: 2.5 k
IRIG-B Input—BNC Connector
Input: Demodulated IRIG-B
Rated I/O Voltage: 5 Vdc
Operational Voltage Range: 0–8 Vdc
Logic High Threshold: 2.2 Vdc
Logic Low Threshold: 0.8 Vdc
Input Impedance: 50 or >1 k
Dielectric Test Voltage: 0.5 kVac
Part Number
8130-06 8130-08 8130-10
Min. TX Pwr. (dBm) 0 1 5
Max. TX Pwr. (dBm) 5 5 8
Min. RX Sens. (dBm) –24 –36 –36
Max. RX Sens. (dBm) –3 –10 –10
Approximate Range (km) 80 160 200