While any of the auto-reclosing open time timers are running, the output INPROGR is activated.
When the "open time" timer runs out, the respective internal signal is transmitted to the
output module for further checks and to issue a closing command to the circuit breaker.
When a CB closing command is issued the output prepare 3-phase trip is set. When issuing a
CB closing command a “reclaim” timer
tReclaim is started. If no tripping takes place during
that time the auto-reclosing function resets to the “Ready” state and the signal ACTIVE resets.
If the first reclosing shot fails, a 3-phase trip will be initiated and 3-phase reclosing can follow,
if selected.
14.2.2.10
ARMode=1/2ph, 1-phase or 2-phase reclosing in the first shot.
M12391-136 v4
In 1-phase or 2-phase tripping, the operation is as in the above described example, program
mode
1/2/3ph. If the first reclosing shot fails, a 3-phase trip will be issued and 3-phase
reclosing can follow, if selected. In the event of a 3-phase trip, TR3P high, the auto-reclosing
will be blocked and no reclosing takes place.
14.2.2.11
ARMode=1ph + 1*2ph, 1-phase or 2-phase reclosing in the first shot
M12391-139 v4
The 1-phase reclosing attempt can be followed by 3-phase reclosing, if selected. A failure of a
2-phase reclosing attempt will block the auto-reclosing. If the first trip is a 3-phase trip the
auto-reclosing will be blocked. In the event of a 1-phase trip, (TR2P low and TR3P low), the
operation is as in the example described above, program mode
1/2/3ph. If the first reclosing
shot fails, a 3-phase trip will be initiated and 3-phase reclosing can follow, if selected. A
maximum of four additional shots can be done (according to the
NoOfShots parameter). At 2-
phase trip (TR2P high and TR3P low), the operation is similar to the above. But, if the first
reclosing shot fails, a 3-phase trip will be issued and the auto-reclosing will be blocked. No
more shots are attempted! The expression
1*2ph should be understood as “Just one shot at 2-
phase reclosing” During 3-phase trip (TR2P low and TR3P high) the auto-reclosing will be
blocked and no reclosing takes place.
14.2.2.12
ARMode=1/2ph + 1*3ph, 1-phase, 2-phase or 3-phase reclosing in the first
shot
GUID-9C2FB801-F324-465E-8FD2-715A9C3D0BD8 v1
At 1-phase or 2-phase trip, the operation is as described above. If the first reclosing shot fails,
a 3-phase trip will be issued and 3-phase reclosing will follow, if selected. At 3-phase trip, the
operation is similar to the above. But, if the first reclosing shot fails, a 3-phase trip command
will be issued and the auto-reclosing will be blocked. No more shots take place! 1*3ph should
be understood as “Just one shot at 3-phase reclosing”.
14.2.2.13
ARMode=1ph + 1*2/3ph, 1-phase, 2-phase or 3-phase reclosing in the first
shot
M12391-146 v4
At 1-phase trip, the operation is as described above. If the first reclosing shot fails, a 3-phase
trip will be issued and 3-phase reclosing will follow, if selected. At 2-phase or 3-phase trip, the
operation is similar as above. But, if the first reclosing shot fails, a 3-phase trip will be issued
and the auto-reclosing will be blocked. No more shots take place! “1*2/3ph” should be
understood as “Just one shot at 2-phase or 3-phase reclosing”.
Table 46: Type of reclosing shots at different settings of ARMode or integer inputs to MODEINT
MODEINT (integer)
ARMode
Type of fault
1st shot
2nd-5th shot
1
3ph
1ph
3ph
3ph
2ph
3ph
3ph
3ph
3ph
3ph
Table continues on next page
Section 14
1MRK 505 343-UEN B
Control
538
Application manual
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