ABB Relion 650 Series Technical Manual page 317

1MRK 506 326-UUS B
pulse
initiate
1PT1
3PT1
3PT2
3PT3
3PT4
3PT5
RSTCOUNT
ANSI10000258 V1 EN-US
Figure 161: Pulsing of the closing command and driving the operation counters
10.3.6.8 Transient fault
After the reclosing command the reset timer
occurs within this time, the auto-reclosing will reset.
10.3.6.9 Permanent fault and reclosing unsuccessful signal
If a new trip occurs after the CB closing command, and a new input signal PICKUP or TRSOTF
appears, the output UNSUCCL (unsuccessful closing) is set high. The timers for the first shot can
no longer be started. Depending on the setting for the number of reclosing shots, further shots
may be made or the reclosing sequence will be ended. After the reset time has elapsed, the auto-
reclosing function resets but the CB remains open. The CB closed data at the 52a input will be
missing. Because of this, the reclosing function will not be ready for a new reclosing cycle.
Normally the signal UNSUCCL appears when a new trip and initiate is received after the last
reclosing shot has been made and the auto-reclosing function is blocked. The signal resets once
the reset time has elapsed. The "unsuccessful" signal can also be made to depend on CB position
input. The parameter
should also be set. If the CB does not respond to the closing command and does not close, but
remains open, the output UNSUCCL is set high after time
Line distance protection REL650
Technical manual
AND
AND
AND
AND
AND
AND
AND
UnsucClByCBChk should then be set to CB Check , and a timer tUnsucCl
© Copyright 2011 ABB Power Grids. All rights reserved
CLOSECMD
COUNT1P
counter
COUNT3P1
counter
COUNT3P2
counter
COUNT3P3
counter
COUNT3P4
counter
COUNT3P5
counter
COUNTAR
counter
tReset starts running for the set time. If no tripping
tUnsucCl .
Section 10
Control
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