GE P4A Technical Manual page 6

Contents
9.5 Configuring the Protection Communications
9.6 Setting Up the Phase Differential Characteristic
9.7 Sensitivity Under Heavy Loads
9.8 Permissive Intertripping
9.9 CT Ratio Correction Setting Guidelines
9.10 Feeders with Small Tapped Loads
Chapter 7 Autoreclose
1 Chapter Overview
2 Introduction to Autoreclose
3 Autoreclose Implementation
3.1 Autoreclose Logic Inputs from External Sources
3.1.1 Circuit Breaker Healthy Input
3.1.2 Inhibit Autoreclose Input
3.1.3 Block Autoreclose Input
3.1.4 Reset Lockout Input
3.1.5 Pole Discrepancy Input
3.1.6 External Trip Indication
3.2 Autoreclose Logic Inputs
3.2.1 Trip Initiation Signals
3.2.2 Circuit Breaker Status Inputs
3.2.3 System Check Signals
3.3 Autoreclose Logic Outputs
3.4 Autoreclose Operating Sequence
3.4.1 AR Timing Sequence - Transient Fault
3.4.2 AR Timing Sequence - Evolving/Permanent Fault
3.4.3 AR Timing Sequence - Evolving/Permanent Fault Single-phase
4 Autoreclose System Map
4.1 Autoreclose System Map Diagrams
4.2 Autoreclose Internal Signals
4.3 Autoreclose DDB Signals
5 Logic Modules
5.1 Circuit Breaker Status Monitor
5.1.1 CB State Monitor Logic diagram
5.2 Circuit Breaker Open Logic
5.2.1 Circuit Breaker Open Logic Diagram
5.3 Circuit Breaker in Service Logic
5.3.1 Circuit Breaker in Service Logic Diagram
5.3.2 Autoreclose OK Logic Diagram
5.4 Autoreclose Enable
5.4.1 Autoreclose Enable Logic Diagram
5.5 Autoreclose Modes
5.5.1 Single-Phase and Three-Phase Autoreclose
5.5.2 Autoreclose Modes Enable Logic Diagram
5.6 AR Force Three-Phase Trip Logic
5.6.1 AR Force Three-Phase Trip Logic Diagram
5.7 Autoreclose Initiation Logic
5.7.1 Autoreclose Initiation Logic Diagram
5.7.2 Autoreclose Trip Test Logic Diagram
5.7.3 AR External Trip Initiation Logic Diagram
5.7.4 Protection Reoperation and Evolving Fault Logic Diagram
5.7.5 Fault Memory Logic Diagram
5.8 Autoreclose In Progress
5.8.1 Autoreclose In Progress Logic Diagram
5.9 Sequence Counter
5.9.1 Autoreclose Sequence Counter Logic Diagram
5.10 Autoreclose Cycle Selection
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