Schweitzer SEL-421 Protection, Automation, and Control System Mfg Date 07/2022

Description

Sc
hweitzer Engineering SEL-421 Protection, Automation,
and Control System Mfg Date 07/2022
.
Brand new.
Model # 04215615XB2X4H224XXXX
Unit made in 07/2022.
Apply the SEL-421 for high-speed distance and directional protection and complete control of a two-breaker bay.
Protect any transmission line using a combination of five zones of phase- and ground-distance and directional overcurrent elements. A graphical user interface system provides logic and application templates for typical line protection schemes. Patented coupling capacitor voltage transformer (CCVT) transient overreach logic enhances the security of Zone 1 distance elements. Best Choice Ground Directional Element logic optimizes directional element performance and eliminates many directional settings. Optional additional logic prevents Zone 1 overreach on series-compensated lines. Optional incremental components provide subcycle operation for application on critical lines requiring high-speed fault clearing. Optional Time-Domain Link (TiDL) technology and SEL Sampled Values (SV) technology using
IEC 61850-9-2
transform the way you modernize your substation.
BIN or best offer.
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(P13)
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