Schweitzer Engineering Laboratories, Inc.
SEL-3061 Data Sheet
5
Distribution Automation
The SEL-3061 provides cellular connectivity to remotely
monitor and control recloser controls and sectionalizers
for distribution power systems, as shown in
cases where customers rely on communications schemes
for power restoration, the SEL-3061 provides the con-
nectivity. The main difference between the distribution
automation (DA) systems that use line-of-sight radios
and DA systems that use an SEL-3061 is that the
SEL-3061 and DA can be installed at any IED location
that has cellular coverage. The DA controller polls data
from each recloser control for monitoring and sends con-
trol signals through the WAN and the SEL-3061.
SEL-FLT/SEL-FLR Network Backhaul
The SEL-FLT and SEL-FLR Fault and Load Transmitter
and Receiver System provides wide-area load monitoring
and fault location from line-powered SEL-FLT devices.
The SEL-FLR collects load data and fault information
from the SEL-FLT devices and sends the collected data
to an Operation Management System (OMS) or Energy
Management System (EMS) via a WAN. The SEL-3061
provides the communications link between the OMS and
the SEL-FLR. When connected to the SEL-FLR the
SEL-3061 provides wireless connectivity for the
SEL-FLT/SEL-FLR networks, as illustrated in
.
Figure 4 Distribution Automation
SEL-351S
SEL-351S
SEL-3530
Recloser 3
Cell Tower
Cellular Link
Wired Network Link
SEL-3061
SEL-651R
SEL-651R
SEL-651R
Circuit Breaker 2
Recloser 1
Recloser 2
SEL-651R
SEL-3061
SEL-651R
Recloser 1
Recloser 2
Distribution Feeder
Wide-Area
Network
SEL-3061
SEL-3061
SEL-3061
SEL-3061
SEL-3061
Circuit Breaker 1
DC Control Circuit
Figure 5 Backhaul Communication for Distribution Line Sensors
Ethernet
SEL
Backhaul
Distribution System
Utilities/EMS/OMS
SEL-FLR
SEL-FLT
SEL-3061
Wide-Area
Network
Load
Monitoring
Events