Sel 411L - Page 353

P.3.245
Date Code 20151029 Protection Manual SEL-411L Relay
Protection Functions
Trip Logic
TPC1 Breaker 1 Trip C
TPA2 Breaker 2 Trip A
TPB2 Breaker 2 Trip B
TPC2 Breaker 2 Trip C
TOP Trip during pole open timer is timing
ULTR Unlatch all protection trips
ULMTR1 Breaker 1 unlatch manual trip
ULMTR2 Breaker 2 unlatch manual trip
ULTRA Unlatch Trip A
ULTRB Unlatch Trip B
ULTRC Unlatch Trip C
POTT3_A ECOMM=POTT3, single-pole trip, A-phase
POTT3_B ECOMM=POTT3, single-pole trip, B-phase
POTT3_C ECOMM=POTT3, single-pole trip, C-phase
87DTTI Differential element distributed trip Initiated
87STAG Differential element single-pole trip, A-phase
87STBG Differential element single-pole trip, B-phase
87STCG Differential element single-pole trip, C-phase
87SPTS Differential element single-pole trip selected
Table 3.126 Trip Logic Relay Word Bits (Sheet 2 of 2)
Name Description