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Sepam Relay Series 20, 40 and 80 - When would the automatic recloser (ANSI 79) give a breaker open command?

The recloser (ANSI 79) uses the orders from the phase overcurrent (ANSI 50/51), ground fault (ANSI 50N/51N or ANSI 50G/51G), directional phase overcurrent (ANSI 67) and directional ground fault (ANSI 67N) protection functions to give trip and open orders to the switchgear following a permanent fault. The recloser can also be activated remotely by using the V_TRIPCB command sent over comms from a supervisor. The Sepam Relay can also be set up to perform different reclosing cycles, depending on which protection function gives the trip order. It can be set up to perform simply 1 reclosing cycle (shot 1) or all 4 reclosing cycles (shot 4). This information can be set using SFT2841:


  • Date Created: February 22, 2008
    Last Revised: March 25, 2008
    Original Author: JJ
    All content © 1992-2008 Schneider Electric

Legacy KB System (APS) Data: RESL191508 V1.0, Originally authored by PhHa on 03/26/2008, Last Edited by PhHa on 03/26/2008
Related ranges: SFT 2841 - SFT2848 (Sepam series 20, 40, 80 software), Sepam series 80, Sepam series 40, Sepam series 20
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