- SEL Fast Sequential Events Recorder (SER)
Transfer unsolicited binary fast SER data with time stamps, along with settings and other data, over a single communications link.
- Relay- and Recloser-Compatible Time-Overcurrent Protection
The included U.S. (IEEE) and IEC relay curves, user-programmable curves, and all traditional recloser curves maximize recloser control flexibility and coordination. Constant time adder, vertical multiplier, and minimum response time functions improve flexibility.
- Large Display and Operator Controls
Large front-panel display and programmable operator control interface pushbuttons make it easy to control your reclosers. Control interface pushbuttons include a "Lock" function to prevent inadvertent operation. Pushbuttons are preprogrammed and labeled with popular recloser control switch functions but can be reprogrammed and relabeled to meet your unique application requirements.
- Lightweight Cabinet
The lightweight painted aluminum cabinet exhibits the same outstanding resistance to corrosion as a stainless steel cabinet and is easy to install.
- Extra Cabinet Space
The cabinet accommodates 16 Ah batteries with additional space inside the recloser control enclosure to add communications equipment, such as a cellular modem and point-to-point radio, to integrate the recloser control into your distribution automation system.
- Advanced 24 Vdc Battery-Charging and -Monitoring System
The SEL-351R includes a 120 Vac-powered battery charging system that monitors and tests the 24 Vdc battery and comes with an automatic sleep and local wake-up function. A 12 Vdc battery is available for powering modems and radio communications equipment (6 W continuous, 13 W for 1 second).
- Per-Phase Operations Counter
Monitor breaker or recloser contact wear for each individual phase for efficient maintenance planning and troubleshooting.