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INIT_2
and
INIT_4
lines are active for the second shot, that is, the shot
pointer is 2, CBB2 is started instead of CBB5.
Even if the initiation signals are not received from the protection functions, the AR
function can be set to continue from the second to the fifth reclose shot. The AR function
can, for example, be requested to automatically continue with the sequence when the
circuit breaker fails to close when requested. In such a case, the AR function issues a
CLOSE_CB
command. When the wait close time elapses, that is, the closing of the circuit
breaker fails, the next shot is automatically started. Another example is the embedded
generation on the power line, which can make the synchronism check fail and prevent the
reclosing. If the autoreclose sequence is continued to the second shot, a successful
synchronous reclosing is more likely than with the first shot, since the second shot lasts
longer than the first one.
Section 9
1MAC059074-MB A
Control functions
1002
615 series ANSI
Technical Manual
Содержание Relion 615 series
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