GE P4A Technical Manual page 10

Contents
5.8.1 Setting the Thresholds for the Total Broken Current
5.8.2 Setting the thresholds for the Number of Operations
5.8.3 Setting the thresholds for the Operating Time
5.8.4 Setting the Thresholds for Excesssive Fault Frequency
6 CB State Monitoring
6.1 CB State Monitor Logic diagram
7 Circuit Breaker Control
7.1 CB Control using the IED Menu
7.2 CB Control using the Hotkeys
7.3 CB Control using the Function Keys
7.4 CB Control using the Opto-inputs
7.5 Remote CB Control
7.6 CB Healthy Check
7.7 Synchronisation Check
7.8 CB Control AR Implications
7.9 CB Control Logic Diagram
8 Pole Dead Function
8.1 Pole Dead Logic
9 System Checks
9.1 System Checks Implementation
9.1.1 VT Connections
9.1.2 Voltage Monitoring
9.1.3 Check Synchronisation
9.1.4 Check Syncronisation Vector Diagram
9.2 Voltage Monitor for CB Closure
9.3 Check Synchronisation Monitor for CB Closure
9.4 System Check PSL
9.5 Application Notes
9.5.1 Predictive Closure of Circuit Breaker
9.5.2 Voltage and Phase Angle Correction
Chapter 13 Supervision
1 Chapter Overview
2 Current Differential Supervision
2.1 Current Differential Starter Supervision
2.1.1 Current Differential Starter Supervision Logic
2.1.2 Current Differential Start Logic
2.2 Switched Communication Path Supervision
2.3 Communications Asymmetry Supervision
3 Voltage Transformer Supervision
3.1 Loss of One or Two Phase Voltages
3.2 Loss of all Three Phase Voltages
3.3 Absence of all Three Phase Voltages on Line Energisation
3.4 VTS Implementation
3.5 VTS Logic
4 Current Transformer Supervision
4.1 Differential CTS
4.2 Differential CTS Logic
4.3 CTS Implementation
4.4 Standard CTS Logic
4.5 CTS Blocking
4.6 Application Notes
4.6.1 Setting Guidelines
4.6.2 Differential CTS Setting Guidelines
5 Trip Circuit Supervision
5.1 Trip Circuit Supervision Scheme 1
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