SEL-411L

Use 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 phase- and sequence-based functional elements for sensitivity and high-speed operation.

You can choose from many popular fiber optic and multiplexed communications options. The protection and distance logic of a complete SEL-421 protection, automation, and control system are provided to ensure redundant protection and integration. The SEL-411L includes a traveling wave fault location method for fault location to a tower perimeter. The SEL-411L detects broken conductors in overhead lines. This feature helps prevent a shunt fault that could occur if a conductor falls.

Transform the way you modernize your substation with optional Time Domain Link (TiDL) technology or Sampled Value (SV) technology using IEC 61850-9-2.