ABB RELION 620 Series Technical Manual page 751

1MAC504801-IB E
9.2.7
620 series ANSI
Technical Manual
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 pickup signal
is connected to the DEL_INIT_2 input.
If the protection picks up after the circuit breaker closes, the fast trip follows after the set
0.05 seconds. The total trip time is the protection pickup delay + 0.05 seconds + the time
it takes to open the circuit breaker.
Signals
Table 540: 79 Input signals
Name Type
INIT_1 BOOLEAN
INIT_2 BOOLEAN
INIT_3 BOOLEAN
INIT_4 BOOLEAN
INIT_5 BOOLEAN
INIT_6 BOOLEAN
DEL_INIT_2 BOOLEAN
DEL_INIT_3 BOOLEAN
DEL_INIT_4 BOOLEAN
BLK_RECL_T BOOLEAN
BLK_RCLM_T BOOLEAN
BLK_THERM BOOLEAN
CB_POS BOOLEAN
CB_READY BOOLEAN
INC_SHOTP BOOLEAN
INHIBIT_RECL BOOLEAN
RECL_ON BOOLEAN
SYNC BOOLEAN
Default Description
0=False AR initialization / blocking signal 1
0=False AR initialization / blocking signal 2
0=False AR initialization / blocking signal 3
0=False AR initialization / blocking signal 4
0=False AR initialization / blocking signal 5
0=False AR initialization / blocking signal 6
0=False Delayed AR initialization / blocking signal 2
0=False Delayed AR initialization / blocking signal 3
0=False Delayed AR initialization / blocking signal 4
0=False Blocks and resets reclose time
0=False Blocks and resets reclaim time
0=False Blocks and holds the reclose shot from the thermal
overload
0=False Circuit breaker position input
1=True Circuit breaker status signal
0=False A zone sequence coordination signal
0=False Interrupts and inhibits reclosing sequence
0=False Level sensitive signal for allowing (high) / not allowing
(low) reclosing
0=False Synchronizing check fulfilled
Section 9
Control functions
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