SEL-651RA

Recloser Control

The SEL-651RA offers exceptional protection and communications capabilities for Automatic Network Reconfiguration and other distribution automation needs. These capabilities assist you in maintaining reliable service to as many customers as possible in the event of a fault.

Quickly commission the SEL-651RA by applying just the settings you need using acSELerator QuickSet SEL-5030 Software Design Templates. Easy-to-use Design templates create a simplified settings interface and can be customized for your needs. Store templates on the recloser control for quick access when making settings changes. Familiar “EZ” recloser control settings further simplify and speed commissioning for basic applications.

Recloser Compatibility

Starting At

3,900 USD

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Examples

Applications

Customer Outage Minimization—Reduce system and customer impacts by integrating reclosers and controls into your distribution system. Improve reliability by maintaining service to customers who are not on the faulted segment of the feeder.

Distributed Generation Protection—Protect both the utility and the independent power producer with one low-cost device. Apply directional protection and simultaneously use different protection settings for faults in either direction. Protect the system from voltage angle differences by enabling synchronism check before closing.

Load Shedding—Use underfrequency and undervoltage elements to implement basic load-shedding schemes. For more advanced loadshedding schemes, take advantage of the rate-of-change-offrequency (ROCOF) elements to shed load for increasing or decreasing frequency.

Communications-Assisted Protection Schemes—Integrate the SEL-651RA into either Ethernet- or serial based communications networks with standard DNP3 and Modbus protocols or optional IEC 61850. Use communications for local and remote engineering access, SCADA, real-time protection and control, loop restoration, islanding detection, blocking, and fast bus tripping schemes.

Inrush Detection—Detect transformer energization or motor startup and block tripping for inrush conditions with a second-harmonic blocking element. Implement the harmonic detection element to block selected tripping elements until the inrush subsides.

Synchrophasors Improve Distribution Performance—Apply synchrophasors in distribution applications to identify island conditions.

Fault Location—Combine SEL fault indicators with recloser controls to pinpoint the exact location of a fault, even on lateral feeds—something neither product can do on its own. When a fault occurs, the SEL recloser control reports the distance from the recloser to the fault; however, for lines with branches, the recloser control cannot determine on which branch of the line the fault has occurred. By following the line along the tripped fault indicators, the line crew can easily find the fault area.

Overview

Protection

Compatible Reclosers
The SEL-651RA is compatible with reclosers using the 14-pin control cable interface. The SEL-651RA comes in a lightweight, corrosion-resistant painted aluminum cabinet with the 14-pin control cable connector mounted and ready to connect to your recloser. View the table of compatible reclosers.

Recloser Options
The ordering options for the SEL-651RA provide the flexibility to support common options found in popular 14-pin reclosers, including the integral LEA voltage sensors, recloser power cables, and control cables. Configure your SEL-651RA for direct plug-and-work replacement of popular recloser controls from other manufacturers while adding the advanced recloser control functionality found only in the SEL recloser controls.

Reclosing Control
Apply four-shot reclosing with sequence coordination, synchronism check, and voltage check. When load levels vary from phase to phase, set trip levels independently for each phase.

Relay- and Recloser-Compatible Time-Overcurrent Protection
Apply 10 U.S. (IEEE) and IEC curves and 38 traditional curves, each customizable with time adder, vertical multiplier, and minimum response time functions to coordinate your feeder protection.

Second-Harmonic Blocking
Detect transformer energization with the second-harmonic blocking elements. Use the output of the harmonic detection elements to block selected tripping elements until the inrush conditions subside.

Arc Sense Technology
Detect downed conductors and high-impedance faults with the optional Arc Sense technology. Learn more about this exciting technology.

Six Voltage Inputs
Make better switching decisions and execute more complex Automatic Network Reconfiguration by knowing the voltage on both sides of the recloser for each phase with the option for six voltage input channels.

Optional Low-Energy Analog (LEA) Inputs
Reduce costs and save space with three or six LEA inputs. Several versions of LEAs are supported, including those that are integral to popular reclosers as well as externally installed.

Configurable Power Elements
Determine the real or reactive power flow direction and magnitude. Apply the elements at system intertie points, capacitor bank installations, and similar locations.

Frequency and Voltage Protection
Provide advanced load shedding or network decoupling with six levels of frequency elements and four rate-of-change-of-frequency elements along with under-/overvoltage protection.

Full-Function Clock Elements
Vary logic according to the time of year/week/day to accommodate variations in the load type for seasonal or other predictable load changes.

Eight Settings Groups
Use the eight settings groups to easily configure multiple applications in one settings file and to fit operational situations.

Communications

Simple Configuration Tools
Quickly commission the SEL-651RA by applying just the settings you need using acSELerator QuickSet SEL-5030 Software Design Templates. Easy-to-use Design Templates create a simplified settings interface and can be customized for your needs. Store templates on the recloser control for quick access when making settings changes. Familiar “EZ” recloser control settings further simplify and speed commissioning for basic applications.

IEC 61850 Communications Protocol
Apply optional IEC 61850 communications for guaranteed performance of substation automation and control. Streamline configurations of IEC 61850 enabled relays with acSELerator Architect SEL-5032 Software.

Mirrored Bits Communications Technology
Provide fast and reliable relay-to-relay communication for advanced communications-assisted protection, network reconfiguration, pilot protection, and restoration schemes.

Modbus, DNP3, and ASCII Protocols
Integrate into new or existing networks. SCADA links, local human-machine interfaces (HMIs), and dial-in modems can access important relay data with these popular protocols.

Simple Network Time Protocol (SNTP)
Simplify wiring and installation by receiving a time signal over existing Ethernet networks. SNTP makes a good backup to more accurate IRIG-B time synchronization. The 5 ms accuracy is adequate for basic time synchronization.

Built-In Web Server
Access basic relay information on a standard Ethernet network with the built-in web server. View relay status, Sequential Events Recorder (SER) data, metering information, and settings for easy access within a local network. Web server access requires a relay password and is limited to read-only viewing of information or to secure remote firmware upgrades requiring an additional login level.

Monitoring and Metering

Fault Location
Take advantage of accurate distance-to-fault measurements using the impedance-based fault locator.

Per-Phase and Max-Phase Recloser Wear Monitor
Monitor breaker or recloser contact wear for each phase to assist in efficient maintenance planning and troubleshooting.

Metering and Power Quality (PQ) Monitoring
The control reports fundamental, power factor, RMS, energy, max./min., and instantaneous/peak demand metering data. Simplify PQ analysis using harmonic metering to the 16th harmonic as well as PQ analysis and monitoring records for voltage sags, swells, and interruptions (VSSI) and load profile reports.

Event Reports
View the latest 1,000 event records with the user-defined Sequential Event Recorder (SER) to aid in testing and troubleshooting relay settings, simplify postfault analysis, and help improve your understanding of protection schemes. Capture event oscillography data in both Compressed ASCII and COMTRADE file formats. Event reports can record up to 60 cycles with a user-defined prefault duration and triggering.

Use acSELerator Team SEL-5045 Software to automatically gather relay event reports on your PC and manage them with a database. Use synchroWAVe Event 2015 Software to display oscillograms and vector diagrams to analyze event reports.

Base Model Features

Communications Ports
Three EIA-232 serial ports, one USB Standard-B port, one 10/100BASE-T Ethernet port, and one BNC IRIG-B port are provided.

Display and Operator Controls
A large front-panel display and programmable operator control interface pushbuttons allow easy interaction. In addition to the navigation pushbuttons, 12 programmable pushbuttons are included. The pushbuttons are preprogrammed and labeled with popular recloser control switch functions, including a “Lock” function to prevent inadvertent operation. They can be reprogrammed and relabeled to meet your unique application requirements.

Contact Inputs and Outputs
In addition to the recloser interface, two Form C contact outputs and two contact inputs are included in the standard configuration. Use these contacts for alarms or control points.

Secondary Voltage Input
One traditional 300 Vac potential transformer input is included. Use phantom phasing to emulate voltage on additional channels, or order one of the options with six input channels.

Current Inputs
Each phase is monitored by a 1 A current transformer input. The neutral current is monitored by a 0.2 A sensitive earth fault (SEF) current transformer input.

Enclosure
The SEL-651RA includes a lightweight, corrosion-resistant painted aluminum cabinet. The enclosure provides space to install radios, modems, switches, security gateways, and other equipment that allow you to integrate the control into your distribution automation system.

The enclosure achieves an IP45 rating from the IEC 60529 ”Degrees of protection provided by enclosures (IP Code)” standard and is also tested to meet the Type 3RX category from the NEMA 250 “Enclosures for Electrical Equipment (1000 Volts Maximum)” standard.

Advanced 12 Vdc Battery Charging and Monitoring System
The 12 Vdc battery charger is continually monitored, and the battery health is tested daily to ensure backup power availability. A 16 Ah battery is standard with the SEL-651RA to power the control and accessories, including security devices, radios, modems, and other communications equipment in the event that ac power is lost.

Low-Energy Analog (LEA) Voltage Inputs
Reduce costs and save space with LEA voltage inputs. Use LEA inputs for three or all six voltage input channels. Many popular reclosers have the sensors built right into the recloser bushings, eliminating the need to hang and wire potential transformers to measure the line voltages, and are supported by the SEL-651RA.

High-Impedance Fault Detection
Detect more high-impedance faults than with traditional protection by using Arc Sense technology.

Additional Inputs and Outputs
Add seven inputs and eight outputs consisting of two 125 Vdc and five 12 V inputs with five Form A outputs and two Form C outputs.

EIA-485 Port
Increase communications flexibility with the addition of the EIA-485 port.

Ethernet
Choose from single-fiber, dual-redundant copper, and dual-redundant fiber Ethernet port upgrade options.

IEC 61850
Easily integrate the SEL-651R into your IEC 61850 communications systems.

Battery
Upgrade to the 40 Ah extended capacity battery to increase your operation time after a loss of ac power.

Configurable Labels
Customize your control pushbutton and target LEDs to match your application and workflow with the user-configurable label insert kit.

Tricolor LEDs
Program the pushbutton and target LEDs to display as red, amber, or green to meet your application needs and preferences.

Accessories
Select one of the accessories from our published list, or contact us with your specific needs.