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1MAC050144-MB C
Section 7
Control functions
615 series ANSI
505
Technical Manual
CBBs that are set for shots 3, 4 and 5 are accepted. In other words, shot 2 can be
ignored.
In case there are multiple CBBs allowed for execution, the CBB with the smallest number
is chosen. For example, if CBB2 and CBB4 request an execution, CBB2 is allowed to
execute the shot.
The autoreclose function can perform up to five autoreclose shots or cycles.
7.2.6.3
Configuration examples
Figure 274:
Example connection between protection and autoreclose functions in
IED configuration
It is possible to create several sequences for a configuration.
Autoreclose sequences for overcurrent and non-directional ground-fault protection
applications where high speed and delayed autoreclosings are needed can be as follows:
Example 1
The sequence is implemented by two shots which have the same reclose time for all
protection functions, namely 50P-1, 51P and 51N/G. The initiation of the shots is done by
activating the trip signals of the protection functions.
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