ABB Relion 650 Series Technical Manual page 306

Section 10
Control
pulse
initiate
3PT1
3PT2
3PT3
3PT4
3PT5
RSTCOUNT
ANSI08000245 V1 EN-US
Figure 153: Pulsing of closing command and driving the operation counters
Transient fault
After the reclosing command the reset timer
occurs within this time, the auto-reclosing will reset.
Permanent fault and reclosing unsuccessful signal
If a new trip occurs after the CB closing command, and a new input signal RI 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
300
AND
AND
AND
AND
AND
AND
UnsucClByCBChk should then be set to CBCheck , and a timer tUnsucCl
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counter
counter
counter
counter
counter
counter
tReset starts running for the set time. If no tripping
tUnsucCl .
1MRK 506 326-UUS B
CLOSECMD
COUNT3P1
COUNT3P2
COUNT3P3
COUNT3P4
COUNT3P5
COUNTAR
ANSI08000245-1-en.vsd
M12394-257 v3
M12394-260 v4
Line distance protection REL650
Technical manual