Reset Total AR
No
Yes
V00509
&
DT Complete
CB Cls Fail
CB Closed 3 ph
CB Open 3 ph
Autoreclose Start
Total Shot Counter
(Increment on +ve edge )
Lockout Alarm
CB Healthy
AR SysChecks OK
&
&
&
Auto Close
Hold Reclaim Output
&
SD
R
Q
&
R
Q
&
S
R
Q
&
AR CB Unhealthy
AR No Sys Check
&
SD
Figure 155: AR CB Close Control logic
7.6 AR SYSTEM CHECKS
The permission to initiate an Autoreclose depends on the following AR system check settings. These are found in
the AUT
ORECLOSE column under the AR SYSTEM CHECKS sub-heading and are not to be confused with the main
system check settings in the SYSTEM CHECKS column.
The AR SYSTEM CHECKS are as follows:
● Live/Dead Ccts: When enabled this setting will give an AR Check OK signal when the LiveDead Ccts OK
signal is high. This logic input DDB would normally be mapped in PSL to appropriate combinations of Line
Live, Line Dead, Bus Live and Bus Dead DDB signals.
● No System Checks: When enabled this setting completely disables system checks thus allowing
Autoreclose initiation under any system conditions.
● SysChk on Shot 1: Can be used to disable system checks on the first AR shot.
● AR with ChkSyn: Only allows Autoreclose when the system satisfies the Check Sync Stage 1 (CS1) settings in
the main SYSTEM CHECKS menu.
● AR with SysSyn: Only allows Autoreclose when the system satisfies the Check Sync Stage 2 (CS2) settings in
the main SYSTEM CHECKS menu.
The AR System Check logic is as follows:
Chapter 13 - Autoreclose P14x
298 P14xEd1-TM-EN-1