ABB RELION Series, Technical Manual

Page: 666 / 804

parameter to "1" and connecting the protection start information to the corresponding
DEL_INIT_
input.
When the function detects a closing of the circuit breaker, that is, any other closing
except the reclosing done by the function itself, it always prohibits shot initiation for
the time set with the
Reclaim time parameter. Furthermore, if the Fourth delay in
SOTF parameter is "1", the Str _ delay shot 4 parameter delays are also activated.
Example 1
The protection operation time is 0.5 seconds, the Fourth delay in SOTF parameter is
set to "1" and the Str 2 delay shot 4 parameter is 0.05 seconds. The protection start
signal is connected to the
DEL_INIT_2
input.
If the protection starts after the circuit breaker closes, the fast trip follows after the set
0.05 seconds. The total trip time is the protection start delay + 0.05 s the time
it takes to open the circuit breaker.
9.4.7 Signals
Table 667: DARREC Input signals
Name Type Default Description
INIT_1 BOOLEAN 0=False AR initialization / blocking signal 1
INIT_2 BOOLEAN 0=False AR initialization / blocking signal 2
INIT_3 BOOLEAN 0=False AR initialization / blocking signal 3
INIT_4 BOOLEAN 0=False AR initialization / blocking signal 4
INIT_5 BOOLEAN 0=False AR initialization / blocking signal 5
INIT_6 BOOLEAN 0=False AR initialization / blocking signal 6
DEL_INIT_2 BOOLEAN 0=False Delayed AR initialization / blocking signal 2
DEL_INIT_3 BOOLEAN 0=False Delayed AR initialization / blocking signal 3
DEL_INIT_4 BOOLEAN 0=False Delayed AR initialization / blocking signal 4
BLK_RECL_T BOOLEAN 0=False Blocks and resets reclose time
BLK_RCLM_T BOOLEAN 0=False Blocks and resets reclaim time
BLK_THERM BOOLEAN 0=False Blocks and holds the reclose shot from the thermal
overload
CB_POS BOOLEAN 0=False Circuit breaker position input
CB_READY BOOLEAN 1=True Circuit breaker status signal
INC_SHOTP BOOLEAN 0=False A zone sequence coordination signal
INHIBIT_RECL BOOLEAN 0=False Interrupts and inhibits reclosing sequence
RECL_ON BOOLEAN 0=False Level sensitive signal for allowing (high) / not
allowing (low) reclosing
SYNC BOOLEAN 0=False Synchronizing check fulfilled
Section 9
1MRS758755 A
Control functions
660 REC615 and RER615
Technical Manual