ABB Relion 620 Series Applications Manual page 54

Section 3
RER620 application
SCBXCBR1_52_SELECTED
XNSPTOC1_46-1_OPERATE
XNSPTOC2_46-2_OPERATE
PDNSPTOC_46PD_OPERATE
SPCGGIO1_O10_RECLOSE_BLOCK
HOTLINE_TAG
Figure 31: Auto reclose function
48
'Latched_Open' channel (see Figure 9). LHMI close, Remote/SCADA Close and
Reclosing (79) re-close commands are not allowed while in the Latched Open state.
"Latched Open" can be activated through push button 16 [Key 16], circled in the figure
below, which is labeled as "Emergency Open 3 Ph". A corresponding Pushbutton LED
will be activated to indicate a Latched Open state which can be used as a visual reference.
Figure 30: "LACHED_OPEN" channel connected to Auto Recloser function
Once 'Latched Open' state is activated, unless it is de-activated, a Close operation will no
longer be possible. The 'Latched Open' state can be de-activated by the same push-button,
after a minimal interval of 5 seconds.
The "Figure 31" shows the Auto reclose function with "Latched Open" as one of the input
channel connected. Here when "Latched Open" input activated, it inhibits recloser
function.
OR6
B1 O
B2
B3
B4
B5
B6
DLCM1_LCM_SWOTF
LATCHED_OPEN
OR6
B1 O
B2
B3
B4
B5
B6
SECRSYN1_25_SYNC_OK
1MAC308145-MB E
SDARREC1(79;O->
INIT_1 OPEN_CB
INIT_2 CLOSE_CB
INIT_3 CMD_WAIT
INIT_4 INPRO
SDARREC1_79_INPRO
INIT_5 PROT_CRD
SDARREC1_79_PROT_CRD
INIT_6 UNSUC_RECL
SDARREC1_79_UNSUC_RECL
DEL_INIT_2 AR_ON
DEL_INIT_3 READY
DEL_INIT_4
BLK_RECL_T
BLK_RCLM_T
BLK_THERM
CB_POS
CB_READY
INC_SHOTP
INHIBIT_RECL
RECL_ON
SYNC
Application Manual
RER620