- Additional Monitoring and Control
Eight digital inputs monitor the status of external contacts that are transmitted via SEL Fast Meter messages to a communications processor. Control eight contact outputs using SEL Fast Operate commands.
- Improved Safety
Use fiber-optic cable instead of control wiring to outside apparatus to eliminate exposure to ground-potential rise and other dangerous voltages that can be present in a substation yard.
- Easy Application
LEDs indicate the position of each contact output and the status of each sensed input. An "ENABLE" LED indicates that the unit is properly functioning. A "LAMP TEST" pushbutton illuminates all of the LEDs. DIP switches are used to set basic operating parameters.
- Dependability
Fiber-optic links reduce or eliminate data errors from electromagnetic interference. The SEL communications processor monitors the fiber-optic connection to the SEL-2515. The communications processor creates alarms when the fiber-optic cabling is damaged, disturbed, or disconnected.
- High Reliability and Rugged Design
Built to the same high standards as SEL protective relays, the SEL-2515 withstands vibration, electrical surges, fast transients, and extreme temperatures, meeting stringent industry standards. The printed circuit boards are conformal-coated to provide an additional barrier to airborne contaminants, such as hydrogen sulfide, chlorine, salt, and moisture.