ABB Relion 650 Series Technical Manual page 303

1MRK 506 326-UUS B
The logic for switching the auto-recloser
shown in figure 151. The following should be considered:
• Setting
possibility of switching by external switches to inputs ON and OFF, communication
commands to the same inputs, and so on.
• SMBRREC (79) is normally started by tripping. It is either a Zone 1 and Communication aided
trip or a general trip. If the general trip is used the function must be blocked from all back-up
tripping connected to INHIBIT. In both alternatives the breaker failure function must be
connected to inhibit the function. RI makes a first attempt with synchronism-check. TRSOTF
starts shots 2-5.
• Circuit breaker checks that the breaker was closed for a certain length of time before the
starting occurred and that the CB has sufficient stored energy to perform an auto-reclosing
sequence and is connected to inputs 52a and CBREADY.
Operation:Enabled
Operation:Disabled
Operation:External Ctrl
ON
OFF
RI
autoInitiate
TRSOTF
CBREADY
52a
Blocking conditions
Inhibit condistions
count 0
ANSI08000017 V1 EN-US
Figure 151: Auto-reclosing Disabled/Enabled and start
10.2.6.3 Control of the auto-reclosing open time
There are settings for three-phase auto-reclosing open time,
10.2.6.4 Long trip signal
In normal circumstances the trip command resets quickly due to fault clearing. The user can set a
maximum trip pulse duration
same way as a signal to input INHIBIT.
Line distance protection REL650
Technical manual
Operation can be set to Disabled , External ctrl or Enabled . External ctrl offers the
OR
AND
OR
AND
Additional conditions
120 ms
t
tCBClosedMin
CB Closed
t
OR
tTrip . A long trip signal interrupts the reclosing sequence in the
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Enabled/Disabled and the starting of the reclosing is
AND S
R
OR
AND
AND
AND
AND S
R
AND
t1 3Ph to t5 3Ph .
SETON
initiate
pickup
READY
AND
ANSI08000017-1-en.vsd
Section 10
Control
M12394-49 v4
M12394-78 v4
297