SEL-411L Advanced Line Differential Protection, Automation, and Control System
001416-HW-SEL-016
Overview
Apply the SEL-411L for complete protection and control of any transmission line (short, long, or series-compensated). The SEL-411L provides differential and distance protection with both phase- and sequence-based operating elements for sensitivity and high-speed operation.
- Line Current Differential Protection
- Series-Compensated and Long Lines
- Traveling-Wave Fault Locator
- Bay Control, Reclosing, and Breaker Failure Detection
- Out-of-Step Blocking and Tripping
- Multiterminal Transmission Lines
- Flexible Communications Options
- Bay Control, Reclosing, and Breaker Failure Detection
- Multiterminal Protection With Fault Location
- Synchrophasor Measurements to Increase Asset Utilization
You can choose from many popular fiber and multiplexed communications options. Distance protection and logic from a complete SEL-421 Protection, Automation, and Control System are included to provide redundant protection and integration. The SEL-411L includes a traveling-wave fault locating method to locate faults within a tower span. Broken conductor detection in the SEL-411L detects conductor breaks in overhead lines. This function can prevent a shunt fault that could occur from a falling conductor.