SEL Schweitzer Engineering SEL351S Protection System (0351S61342552XX

Sel 351s. Schweitzer 035174A3F54XX1 SCHWEITZER SEL351 SYSTEM PROTECTION RELAY Our substation consists of 2ea power transformers (69kV/12.47kV, 15/20MVA ABB) feeding a dual lineup with a tie breaker. The SEL SEL-351S Protection and Breaker Control Relay includes a robust set of phase, negative-sequence, residual, and neutral overcurrent elements

Large, easy-to-use operator controls and optional independent SafeLock trip/close pushbuttons enhance operation and simplify panels. Each element type has six levels of instantaneous protection (four of these levels have definite-time functions)

Schweitzer Engineering Laboratories Sel351S Protection System

If older SEL-351S relays (with firmware revisions R102 through R107) are upgraded to R108 (or higher) firmware, they too can be wye connected or delta connected, provided that the voltage rating is not exceeded Figure 2 shows some of the typical protection applica-tions that are well suited for the SEL-351S The SEL-351S Relay is a protection and breaker control device that integrates overcurrent, directional, and reclosing elements with SELogic control and metering functions

SEL351S Schweitzer 0351S6X9D3J5421 SEL351S Protection System. It has various features such as second-harmonic blocking, synchrophasors, metering, fault locator, and communications protocols. Figure 2.31 SEL-351S Example Wiring Diagram Using the Auxiliary {TRIP}/{CLOSE} Pushbuttons for 0351Sxxx5/6/A/B Models Circuit Board Connections Figure 2.32 Jumper, Connector, and Major Component Locations on the SEL-351S Main Board

Schweitzer Engineering Laboratories Sel351S Protection System. The SEL-351 Relay has built-in Ethernet and IEEE C37.118 synchrophasors, and is ideal for directional overcurrent applications The SEL-351S Protection System is a relay that provides protection, automation, and breaker control for power systems