NormClosed and connect a CB auxiliary contact of type NC (normally closed) to
inputs CBPOS and START. When the signal changes from CB closed to CB open an
auto-reclosing start pulse of limited length is generated and latched in the function,
subject to the usual checks. Then the reclosing sequence continues as usual. One needs
to connect signals from manual tripping and other functions, which shall prevent
reclosing, to the input INHIBIT.
en08000078.vsd
AND
AND
1
³1
100 ms
100 ms
StartByCBOpen = On
START
start
IEC08000078 V1 EN
Figure 108: Pulsing of the start inputs
10.2.7 Technical data
Table 175: SMBRREC technical data
Function
Range or value Accuracy
Number of autoreclosing shots 1 - 5 -
Autoreclosing open time:
shot 1 - t1 3Ph
(0.000-60.000) s
± 0.5% ± 25 ms
shot 2 - t2 3Ph
shot 3 - t3 3Ph
shot 4 - t4 3Ph
shot 5 - t5 3Ph
(0.00-6000.00) s
Autorecloser maximum wait time for sync (0.00-6000.00) s
Maximum trip pulse duration (0.000-60.000) s
Inhibit reset time (0.000-60.000) s
Reclaim time (0.00-6000.00) s
Minimum time CB must be closed before AR
becomes ready for autoreclosing cycle
(0.00-6000.00) s
CB check time before unsuccessful (0.00-6000.00) s
Wait for master release (0.00-6000.00) s
Wait time after close command before
proceeding to next shot
(0.000-60.000) s
1MRK 511 287-UEN A Section 10
Control
235
Technical manual
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