ABB RELION REB670, Applications Manual

Page: 327 / 554

12.2.2.9
ARMode = 1/2/3ph
M12391-127 v8
Single-phase, two-phase or three-phase auto reclosing first shot, followed by 3-phase
auto reclosing shots, if selected. Here, the auto recloser is assumed to be "On" and
"Ready". The circuit breaker is closed and the operation gear ready (operating energy
stored).
START input (or STARTHS ) is received and sealed-in. The READY output is
reset (set to false). ACTIVE output is set.
• If TR2P and TR3P inputs are low (i.e. single-phase trip): The timer for single-
phase auto reclosing dead time is started and the 1PT1 output (single-phase
reclosing in progress) is activated. It can be used to suppress pole disagreement
and earth-fault protection trip during the single-phase dead time interval..
• If TR2P input is high and TR3P input is low (i.e. two-phase trip): The timer for
two-phase auto reclosing dead time is started and the 2PT1 output (two-phase
reclosing in progress) is activated.
• If TR3P input is high (i.e. three-phase trip): The timer for three-phase auto
reclosing dead time, t1 3Ph or t1 3PhHS , is started depending on if START or
STARTHS input has been activated and 3PT1 output (three-phase reclosing shot 1
in progress) is set..
While any of the auto reclosing dead time timers are running, the INPROGR output is
activated. When the dead time runs out, the respective internal signal is transmitted to
the output module for further checks and to issue a breaker closing command.
When a circuit breaker closing command is issued, the prepare three-pole output trip is
set. When issuing a circuit breaker closing command the
tReclaim timer is started. If no
tripping takes place during that time, the auto recloser resets to the “Ready” state and
the
ACTIVE output resets. If the first reclosing shot fails, a three-phase trip will be
initiated and three-phase reclosing can follow, if selected.
12.2.2.10
ARMode = 1/2ph, 1-phase or 2-phase reclosing in the first shot
M12391-136 v5
At single-pole or two-pole tripping, the operation is as in the example described above,
program mode
1/2/3ph . If the first reclosing shot fails, a three-pole trip will be issued
and three-pole auto reclosing can follow, if selected. In the event of a three-pole trip,
TR3P input high, the auto recloser will be inhibited and no auto reclosing takes place.
12.2.2.11
ARMode = 1ph+1*2ph, 1-phase or 2-phase reclosing in the first shot
M12391-139 v5
At single-pole tripping, the operation is as in the above described example, program
mode
1/2/3ph . The single-pole auto reclosing attempt can be followed by three-pole
reclosing, if selected. At two-pole trip, a failure of a two-pole auto reclosing attempt
will inhibit the auto recloser. No more shots are attempted. If the first trip is a three-
pole trip, the auto-reclosing will be inhibited. No more shots are attempted. The
1MRK 505 370-UUS A
Section 12
Control
Busbar protection REB670 2.2 ANSI 321
Application manual