SEL-651RA
Recloser Control
The SEL-651RA offers exceptional protection and communications capabilities for 14-pin applications, such as Automatic Network Reconfiguration and controlling distributed energy resource (DER) interconnections. 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 CompatibilityCables and Accessories
Starting at
$5,540
Customer Outage Minimization
Reduce system and customer impacts by integrating reclosers and controls into your distribution system. You can improve reliability by maintaining service to customers who are not on the faulted segment of the feeder.
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. You can use communications for local and remote engineering access, SCADA, real-time protection and control, loop restoration, islanding detection, blocking, and fast bus tripping schemes. The Parallel Redundancy Protocol (PRP) is also available as a standard option on SEL-651RA recloser controls with dual-Ethernet copper or dual-Ethernet fiber ports. PRP is an Ethernet-based redundancy protocol that provides seamless network failover for systems such as electrical substations.
High-Impedance Fault Detection
Detect downed conductors and high-impedance faults with the optional AST.
Distributed Generation Protection
Protect both the utility and the independent power producer with one low-cost device. You can control DER interconnections with IEEE 1547-2018 protection and synchronization and innovative SEL fast islanding detection.
Inrush Detection
Detect transformer energization or motor startup and block tripping for inrush conditions with a second-harmonic blocking element. The harmonic detection element lets you block selected tripping elements until the inrush subsides.
Load Shedding
Use underfrequency and undervoltage elements to implement basic load-shedding schemes. For more advanced loadshedding schemes, rate-of-change-offrequency (ROCOF) elements can shed load for increasing or decreasing frequency.
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.
Secure Ethernet Communications
Use Media Access Control Security (MACsec) to enhance the existing cybersecurity of the SEL-651RA and reduce operation and maintenance expenses. MACsec secures Ethernet traffic (except IEC 61850 GOOSE and PRP) between an SEL-651RA and SEL-3622 or Key Server MACsec-enabled routers/radios, providing confidential communication and maintaining message integrity between devices. Key management is automated via the MACsec Key Agreement (MKA) to simplify commissioning and improve the overall user experience.
SEL-651RA Features
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- Corrosion-resistant painted aluminum cabinet provides a maintenance-free enclosure
- EIA-232 front serial port provides local access
- USB port provides fast local access
- Navigation controls make information readily accessible
- Optional software-programmable tricolored LEDs for improved status indication
- Standard three-point latch for physical security
- Programmable control pushbuttons and configurable labels for ease of operation
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- Two standard EIA-232 ports and an EIA-485 port provide several communications options. (EIA-232 ports are hidden from this view.)
- 64 SELogic variables replace traditional panel switches with 32 latching, 16 local, and 32 remote control points.
- Standard multisession Modbus TCP and DNP3 and optional IEC 61850 easily integrate with existing systems.
- Standard dual copper Ethernet ports or optional dual fiber Ethernet ports allow communication between devices and provide redundancy. An optional single fiber Ethernet port is also available.
- Standard single PT voltage input and optional six voltage inputs with PT and LEA options easily integrate with many reclosers.
- Built-in synchrophasor measurements for real-time electrical quantities.