ABB 615 Series ANSI, Technical Manual

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1MAC050144-MB C
Section 7
Control functions
615 series ANSI 509
Technical Manual
Figure 279: Simplified logic diagram of initiation lines
Each delayed initiation line has four different time settings:
Table 423: Settings for delayed initiation lines
7.2.6.5 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.
Example 1
When a two-shot-sequence is used, the pickup information from the protection function is
routed to the
DEL_INIT 2
input and the trip information to the
INIT_2
input. The
following conditions have to apply:
• protection trip time = 0.5s
•
Str 2 delay shot 1 = 0.05s
• Str 2 delay shot 2 = 60s
• Str 2 delay shot 3 = 60s
Setting name Description and purpose
Str x delay shot 1 Time delay for the
DEL_INIT_x
line, where x is the
number of the line 2, 3 or 4. Used for shot 1.
Str x delay shot 2
Time delay for the
DEL_INIT_x
line, used for shot
2.
Str x delay shot 3
Time delay for the
DEL_INIT_x
line, used for shot
3.
Str x delay shot 4
Time delay for the
DEL_INIT_x
line, used for shots
4 and 5. Optionally, can also be used with SOTF.