ABB RELION 620 Series Technical Manual page 749

1MAC504801-IB E
9.2.6.5
620 series ANSI
Technical Manual
The autoreclose function can also open the circuit breaker from any of the initiation lines.
It is selected with the Tripping line setting. As a default, all initiation lines activate the
OPEN_CB output.
A070276 V1 EN
Figure 380: Simplified logic diagram of initiation lines
Each delayed initiation line has four different time settings:
Table 539: Settings for delayed initiation lines
Setting name
Str x delay shot 1
Str x delay shot 2
Str x delay shot 3
Str x delay shot 4
Shot initiation from protection pickup signal
All autoreclose shots are initiated by protection trips. As a result, all trip times in the
sequence are the same. This is why using protection trips may not be the optimal solution.
Using protection pickup signals instead of protection trips for initiating shots shortens the
trip times.
Control functions
Description and purpose
Time delay for the DEL_INIT_x line, where x is the
number of the line 2, 3 or 4. Used for shot 1.
Time delay for the DEL_INIT_x line, used for shot 2.
Time delay for the DEL_INIT_x line, used for shot 3.
Time delay for the DEL_INIT_x line, used for shots
4 and 5. Optionally, can also be used with SOTF.
Section 9
743