Schweitzer Engineering Laboratories SEL-751 - Page 796

F.20
SEL-751 Relay Instruction Manual Date Code 20170927
IEC 61850 Communications
Logical Nodes
ATPTOC20 Str.general 51AP A-phase time-overcurrent element pickup
ATPTOC20 Str.dirGeneral unknown Direction unknown due to settings
BFR1RBRF1 OpEx.general BFT Breaker failure trip
BFR1RBRF1 Str.general BFI Breaker failure initiation
BK1XCBR1 BlkCls.stVal 0 Breaker close blocking not configured by default
BK1XCBR1 BlkOpn.stVal 0 Breaker open blocking not configured by default
BK1XCBR1 CBOpCap.stVal None Breaker/Contactor physical operation capabilities not known to relay
BK1XCBR1 Loc.stVal LOCAL Breaker/Contactor local control status. Asserted when relay is in
Local mode.
BK1XCBR1 OpCnt.stVal INTT Internal trip counter
BK1XCBR1 OpCntEx.stVal EXTT External trip counter
BK1XCBR1 Pos.stVal 52A?1:2
b
Breaker position (52A = false, breaker opened; 52A = true,
breaker closed)
BKR1CSWI1 OpCls.general CC Breaker close control
BKR1CSWI1 OpOpn.general OC Breaker open control
BKR1CSWI1 Loc.stVal LOCAL Breaker/Contactor local control status. Asserted when relay is in
Local mode.
BKR1CSWI1 Pos.stVal 52A?1:2
b
Breaker position (52A = false, breaker opened; 52A = true,
breaker closed)
BTPTOC21 Op.general 51BT B-phase time-overcurrent element trip
BTPTOC21 Str.general 51BP B-phase time-overcurrent element pickup
BTPTOC21 Str.dirGeneral unknown Direction unknown due to settings
CTPTOC22 Op.general 51CT C-phase time-overcurrent element trip
CTPTOC22 Str.general 51CP C-phase time-overcurrent element pickup
CTPTOC22 Str.dirGeneral unknown Direction unknown due to settings
D1TPTOF1 Op.general 81D1T Level 1 trip definite time over-/underfrequency elements
D1TPTOF1 Str.general 81D1T Level 1 trip definite time over-/underfrequency elements
D1TPTOF1 Str.dirGeneral unknown Direction undefined
D2TPTOF2 Op.general 81D2T Level 2 trip definite time over-/underfrequency elements
D2TPTOF2 Str.general 81D2T Level 2 trip definite time over-/underfrequency elements
D2TPTOF2 Str.dirGeneral unknown Direction undefined
D3TPTOF3 Op.general 81D3T Level 3 trip definite time over-/underfrequency elements
D3TPTOF3 Str.general 81D3T Level 3 trip definite time over-/underfrequency elements
D3TPTOF3 Str.dirGeneral unknown Direction undefined
Table F.20 Logical Device: PRO (Protection) (Sheet 2 of 13)
Logical Node Attribute Data Source Comment