Ar Timing Sequence - Evolving/Permanent Fault Single-Phase; Ar Timing Sequence - Transient Fault Dual Cb; Figure 133: Autoreclose Sequence For An Evolving Or Permanent Fault; Figure 134: Autoreclose Sequence For An Evolving Or Permanent Fault - Single-Phase Operation - GE MiCOM P40 Technical Manual

P446SV
Protection Trip
AR in Progress
CB Open
Dead Time
Auto-close
Reclaim Time
Successful Autoreclose
Autoreclose Lockout
V03396

Figure 133: Autoreclose sequence for an evolving or permanent fault

3.4.3

AR TIMING SEQUENCE - EVOLVING/PERMANENT FAULT SINGLE-PHASE

If the Autorecloser is set for single-phase operation, then single phase operation is only allowed on the first shot.
Subsequent tripping will be three-phase only until the AR has been successful or until AR has locked out as shown
in the figure below.
Protection Trip
AR in Progress
CB Open
Dead Time
Auto -close
Reclaim Time
Successful Autoreclose
Autoreclose Lockout
V03397

Figure 134: Autoreclose sequence for an evolving or permanent fault - single-phase operation

3.4.4

AR TIMING SEQUENCE - TRANSIENT FAULT DUAL CB

The figure below describes the operating sequence for a single-shot on a dual CB (2CB) Autorecloser for a transient
fault that clears when the faulted line is isolated.
P446SV-TM-EN-1
1-ph
Chapter 11 - Autoreclose
3-ph
257