Products

Overhead AutoRANGER Fault Indicators are self-adjusting fault indicators for overhead lines. You can apply the SEL-AR360 on distribution systems up to 35 kV and the SEL-AR on systems up to 69 kV for permanent and momentary fault indication using bright LEDs and flash patterns.

Economical timed-reset fault indicator eliminates false reset concerns.

Select your trip value in the field. Stock one fault indicator for a variety of system conditions.

Line-powered fault indicator provides years of maintenance-free operation.

Load current-powered faulted circuit indicator (FCI) with no minimum voltage requirement provides a solution for low-voltage applications.

Battery-free automatic reset fault indicator provides maintenance-free fault indication.

Apply the SEL-FLT and SEL-FLR Fault and Load Transmitter and Receiver System to improve distribution system reliability metrics and customer satisfaction. The SEL-FLT Fault and Load Transmitter operates using 900 MHz wireless sensors that continuously monitor the line for faults while providing load data with 2 percent accuracy to the SEL-FLR Fault and Load Receiver, with a range of up to 10 miles. Speed up system restoration by pinpointing faults and knowing where to send repair crews. Accurate and real-time load monitoring enables improved switching decisions, since operators confidently know which viable alternate feeders are available to pick up the impacted customers.

This distribution automation sensor stores load data and monitors the distribution line for loss of current or fault events. Reports are transmitted to an access point on a communications network using an integrated radio.

The SEL Wireless Protection System helps relays make better tripping and reclosing decisions based on the location of the fault. You can easily adapt it to your power system without interrupting service. The Wireless Protection System provides an innovative approach to enhance distribution substation protection and improve the reliability and safety of your feeder.