P.16.3
Date Code 20151029 Protection Manual SEL-411L Relay
Relay Word Bits
Alphabetic
50FOA1 Circuit Breaker 1 A-phase flashover current threshold exceeded 69
50FOA2 Circuit Breaker 2 A-phase flashover current threshold exceeded 75
50FOB1 Circuit Breaker 1 B-phase flashover current threshold exceeded 69
50FOB2 Circuit Breaker 2 B-phase flashover current threshold exceeded 75
50FOC1 Circuit Breaker 1 C-phase flashover current threshold exceeded 69
50FOC2 Circuit Breaker 2 C-phase flashover current threshold exceeded 75
50G1–50G4 Level 1–4 residual overcurrent element 32
50GF Forward zero-sequence supervisory current element 26
50GR Reverse zero-sequence supervisory current element 26
50LCA1 Circuit Breaker 1 A-phase load current threshold exceeded 68
50LCA2 Circuit Breaker 2 A-phase load current threshold exceeded 74
50LCB1 Circuit Breaker 1 B-phase load current threshold exceeded 68
50LCB2 Circuit Breaker 2 B-phase load current threshold exceeded 74
50LCC1 Circuit Breaker 1 C-phase load current threshold exceeded 68
50LCC2 Circuit Breaker 2 C-phase load current threshold exceeded 74
50P1–50P4 Level 1–4 phase overcurrent element 31
50Q1–50Q4 Level 1–4 negative-sequence overcurrent element 34
50QF Forward negative-sequence supervisory current element 26
50QR Reverse negative-sequence supervisory current element 26
50R1 Circuit Breaker 1 residual current threshold exceeded 68
50R2 Circuit Breaker 2 residual current threshold exceeded 74
51MM01 Inverse-time element 01 pickup setting outside of specified limits 108
51MM02 Inverse-time element 02 pickup setting outside of specified limits 108
51MM03 Inverse-time element 03 pickup setting outside of specified limits 109
51MM04 Inverse-time element 04 pickup setting outside of specified limits 109
51MM05 Inverse-time element 05 pickup setting outside of specified limits 110
51MM06 Inverse-time element 06 pickup setting outside of specified limits 110
51MM07 Inverse-time element 07 pickup setting outside of specified limits 111
51MM08 Inverse-time element 08 pickup setting outside of specified limits 111
51MM09 Inverse-time element 09 pickup setting outside of specified limits 112
51MM10 Inverse-time element 10 pickup setting outside of specified limits 112
51R01 Inverse-time element 01 reset 108
51R02 Inverse-time element 02 reset 108
51R03 Inverse-time element 03 reset 109
51R04 Inverse-time element 04 reset 109
51R05 Inverse-time element 05 reset 110
51R06 Inverse-time element 06 reset 110
51R07 Inverse-time element 07 reset 111
51R08 Inverse-time element 08 reset 111
51R09 Inverse-time element 09 reset 112
51R10 Inverse-time element 10 reset 112
Table 16.1 Alphabetical List of Relay Word Bits (Sheet 3 of 39)
Name Bit Description Row
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