THOLHOLD
Signal “Thermal overload protection holding back auto reclosing”. It can be
connected to a thermal overload protection trip signal which resets only when the
thermal content has fallen to an acceptable level, for example, 70%. As long as the
signal is high, indicating that the line is hot, the auto reclosing is held back. When
the signal resets, a reclosing cycle will continue. Observe that this have a
considerable delay. Input can also be used for other purposes if for some reason the
auto reclosing shot needs to be halted.
TRSOTF
This is the signal “Trip by Switch Onto Fault”. It is usually connected to the
“switch onto fault” output of line protection if multi-shot auto reclosing attempts
are used. The input will start the shots two to five.
Recommendations for output signals
M12399-46 v9
Please see Figure
and default factory configuration for examples.
IPT1, IPT2, IPT3, IPT4 and IPT5
Indicates that auto reclosing shots one to five are in progress. The signals can be
used as an indication of progress or for own logic.
ABORTED
The
ABORTED
output indicates that the auto recloser is inhibited while it is in one
of the following internal states:
•
inProgress: auto recloser is started and dead time is in progress
•
reclaimTimeStarted: the circuit breaker closing command has started the
reclaim timer
ACTIVE
Indicates that the auto recloser is active, from start until end of reclaim time.
BLOCKED
Indicates that auto recloser is temporarily or permanently blocked.
CLOSECB
Connect to a binary output for circuit breaker closing command.
COUNTT1, COUNTT2, COUNTT3, COUNTT4 and COUNTT5
Indicates the number of auto reclosing shots made for respective shot.
COUNTAR
Indicates the total number of auto reclosing shots made.
Section 12
1MRK 506 375-UEN A
Control
232
Railway application RER670 2.2 IEC
Application manual
Summary of Contents for RELION RER670
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