SEL-FLT and SEL-FLR

Fault and Load Transmitter and Receiver System

The SEL-FLT and SEL-FLR Fault and Load Transmitter and Receiver System improves the overall reliability of your distribution system through accurate fault indication and load monitoring. The system enables you to locate faults faster and make informed switching decisions. Restoring power quickly is essential to ensuring satisfied customers and better CAIDI reliability metrics. Locating momentary faults allows you to address system issues and improve MAIFI metrics. Highly accurate (1% typical) load data also enables phase balancing and system planning.

The SEL-FLT Fault and Load Transmitter and the SEL-FLR Fault and Load Receiver work in combination using unlicensed 900 MHz wireless communications. Line powering, with as little as 3.5 A continuous current, reduces ongoing maintenance and allows you to use the SEL-FLT throughout your distribution system. SEL-FLR receivers are easy to integrate into existing systems with DNP3/IP output and comprehensive security. In addition, deploying the SEL-FLT and SEL-FLR system in pole-mount applications is quick and easy with the fully integrated enclosure option.

Starting at

SEL-FLT: $978 USD
SEL-FLR: $1,386 USD
SEL-FLR With Enclosure: $4,547 USD

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Improve Fault Location Throughout the Distribution System—Adding the SEL-FLT and SEL-FLR System provides more detail for momentary and permanent fault location on feeders, taps, and laterals to provide a more granular and extended view of the distribution system. With centralized fault information from the SEL-FLT and SEL-FLR System, utility operations teams can dispatch crews to more precise locations, speeding up restoration. Bright LEDs on the SEL-FLT provide local identification for line crews confirming the fault indication reported through the SCADA system or outage management system (OMS).

Use Load Data to Improve Operations—Highly accurate (1% typical) and timely load data (as fast as 5-minute intervals) from SEL-FLT transmitters on feeders, taps, and laterals enables better decision-making in emergency switching situations. Load data is also essential for phase balancing, system planning, and identifying potential power theft.

Speed Up Deployment in Pole-Mount Applications—The fully integrated SEL-FLR enclosure with built-in mounting bracket makes it quick and easy to deploy the system in pole-mount applications. It contains an SEL-FLR, an uninterruptible power supply, and other related equipment to provide connectivity with SEL-FLT transmitters and comes prewired with connections for power, communications, and antenna circuits. The front-facing Ethernet jack panel in the enclosure provides ease of access for setup. An SEL-3061 Cellular Router can be pre-installed to provide secure communications over public cellular networks to SCADA, or you can self-install your own backhaul radio. The enclosure also includes DIN-rail space for mounting additional hardware, such as the SEL-3505-3 Real-Time Automation Controller (RTAC) for local automation schemes.

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  Fiberglass enclosure
2. 2
  
  Built-in mounting bracket for quick deployment on distribution poles
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  Optional SEL-3061 Cellular Router for secure communications over public cellular networks to SCADA
4. 4
  
  Four front-facing Ethernet ports for ease of access during setup
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  SEL-FLR collects fault, load, and heartbeat information from SEL-FLT transmitters
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  Power supply
7. 7
  
  DIN-rail space to self-install an SEL-3505-3 Real-Time Automation Controller for local automation schemes (ordered separately)
8. 8
  
  Fused ac power input
9. 9
  
  Uninterruptible power supply
10. 10
  
  Backup battery for ride-through during distribution system reconfiguration events and to ensure fault indication messages are sent during permanent outages
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  Three surge-arrested external antenna ports: one for an SEL-FLR antenna and two for backhaul radio antennas
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1. 1
  
  System status
2. 2
  
  Ethernet communications status display
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  Serial communications status display
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  Radio status display
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  Front-facing Ethernet port
6. 6
  
  Reset button
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1. 1
  
  Ethernet ports
2. 2
  
  900 MHz antenna port
3. 3
  
  Grounding terminal
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  12–24 V power input
5. 5
  
  Alarm 01, 02
6. 6
  
  Reserved for future use
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  Spring-loaded clamp with 6.4–38.1 mm (0.25-1.5 in) range
2. 2
  
  Bright 360° LED display
3. 3
  
  900 MHz radio
4. 4
  
  Clamp lock
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Details

Accurately Indicate Faults and Monitor Load
When a fault occurs, the SEL-FLT wirelessly transmits a fault or outage status to an SEL-FLR. The SEL-FLR receives the fault and load status from several SEL-FLT transmitters located within the receiver's line of sight. It then passes the sensor data through a wired or wireless network to the central SCADA master via the DNP3 protocol.

Improve Reliability Metrics and Planning
With a unique and powerful combination of capabilities, the SEL-FLT and SEL-FLR System provides a cost-effective way to integrate wireless fault indication and load data into centralized SCADA systems, allowing for better CAIDI and MAIFI metrics, proactive planning, and more informed switching decisions.

Reduce Operation and Maintenance Costs
Line-powered SEL-FLT transmitters remove the need for battery replacement programs, and autoranging eliminates manual configuration of trip thresholds. SEL-FLR receivers can be tied into existing networks with no extra software to purchase.

Simplify Deployment
SEL-FLT transmitters can be installed with a single hotstick. Using standard DNP3/IP output, SEL-FLR receivers integrate easily into Ethernet networks. With the SEL-FLR enclosure option, deploying the system in pole-mount applications is quick and easy, too. All configuration and troubleshooting for the SEL-FLT and SEL-FLR System is performed through the SEL-FLR web interface.

Trust the Strong Built-In Security
Wireless communications are protected with 128-bit encryption as well as message and device authentication. Users are authorized using role-based access, and unused Ethernet ports can be locked down. If security events occur, the SEL-FLR logs all events locally and can send alerts to syslog destinations.

Develop a Deployment Plan With a Wireless Area Coverage Overview
SEL provides a wireless path overview for the planned use of an SEL-FLT and SEL-FLR System. Customers provide information for the SEL-FLR and SEL-FLT locations, and the overview estimates the viability of the wireless links. SEL offers a free overview for up to five SEL-FLT transmitters and offers complete system path overviews for a fee through SEL Engineering Services.

Countries
The SEL-FLT and SEL-FLR System is approved for use by the governments of the following countries:

Argentina
Bermuda
Brazil
Canada
Cayman Islands
Costa Rica
Ecuador
Mexico
United States

The SEL-FLR enclosure is approved for use in the United States and Canada.

SEL-FLR With Enclosure Options

SEL-3061 Cellular Router for AT&T, T-Mobile, or Rogers wireless networks
SEL-3061 Cellular Router for Verizon wireless networks
Low-profile omnidirectional antenna(s) with mounting bracket and 6 ft (1.8 m) antenna cable(s)

Substation Installation Accessories

SEL-C968-75 Low-Loss LMR-400 N-to-N Connector, 50 ohm, 75 ft*
SEL-C964-25 RG-8X TNC-to-N Connector, 50 ohm, 25 ft*
200-2004 Radio Surge Protector With N Connectors
SEL 235-0233 9.15 dBi Omnidirectional Antenna
240-0106 Mast Mount for Omnidirectional Antennas

Cabinet Installation Accessories

SEL-C968-30 Low-Loss LMR-400 N-to-N Connector, 50 ohm, 30 ft*
SEL-C964-5 RG-8X TNC-to-N Connector, 50 ohm, 5 ft*
200-2004 Radio Surge Protector With N Connectors
SEL 235-0232 7.15 dBi Omnidirectional Antenna
240-0103 Vertical Omnidirectional Antenna Mount for up to 14" Diameter Pole

*Cable length may vary.

Some configurations, such as those with an LED or timed-reset feature, may contain a battery. For configurations with a battery, please see the lithium metal battery warning.

View Lithium Battery Warning

FLRE#4NC4

Price: $5,754.10

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SEL-FLR, Enclosure, and Cellular Router for AT&T, T-Mobile, and Rogers Networks

SEL-FLR to report faults and load current measurements from SEL-FLT to SCADA
Fiberglass enclosure
SEL-3061 Cellular Router
Antennas and antenna cables included

This configuration is for use in United States, Canada, and Mexico.

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FLRE#4GBB

Price: $5,754.10

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SEL-FLR, Enclosure, and Cellular Router for Verizon Networks

SEL-FLR to report faults and load current measurements from SEL-FLT to SCADA
Fiberglass enclosure
SEL-3061 Cellular Router
Antennas and antenna cables included

This configuration is for use in United States, Canada, and Mexico.

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FLRE#KCC8

Price: $4,547.00

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SEL-FLR With Enclosure

SEL-FLR to report faults and load current measurements from the SEL-FLT to SCADA
Fiberglass enclosure
Accessory shelf space for installing a backhaul radio
Antenna and antenna cable included for the SEL-FLR

This configuration is for use in United States, Canada, and Mexico.

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