MODEINT (integer) ARMode Type of fault 1st shot 2nd-5th shot
6 1ph + 1*2/3ph
1ph 1ph 3ph
2ph 2ph .....
3ph 3ph .....
A start of a new auto reclosing cycle during the set “reset time” is blocked when the set
number of reclosing shots have been reached.
12.2.2.14 External selection of auto reclosing mode
M12391-241 v5
The auto reclosing mode can be selected by use of available logic function blocks.
Below is an example where the choice of mode, ARMode
=3ph or ARMode=1/2/3ph, is
done from a hardware function key at the front of the IED, but alternatively there can
for example, be a physical selector switch on the front of the panel which is connected
to a binary to integer function block (BTIGAPC).
The connection example for selection of the auto reclosing mode is shown in Figure
125.
ANSI09000168_1_en.vsd
SMBRREC (79)
MODEINT
PSTO
SWPOSN
NAME1
NAME2
3
1/3
INTONE
SLGGIO
ANSI09000168 V1 EN-US
Figure 125: Selection of the auto-reclose mode from a hardware functional key in
front of the IED
12.2.2.15 Auto reclosing reset timer
M12391-202 v4
The tReset timer defines the time it takes from issue of the breaker closing command,
until the auto recloser resets. Should a new trip occur during this time, it is treated as a
continuation of the first fault. The reclaim timer is started when the circuit breaker
closing command is given.
12.2.2.16 Pulsing of the circuit breaker closing command and counter
M12391-205 v4
The circuit breaker closing command, CLOSECB is given as a pulse with a duration set
by the tPulse setting. For circuit breakers without an anti-pumping function, close
pulse cutting can be used. It is selected by the CutPulse setting. In case of a new start
1MRK 505 370-UUS A Section 12
Control
Busbar protection REB670 2.2 ANSI 323
Application manual
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