GE MiCOM P40 User Manual

3.2 Getting Started 74
3.3 Default Display 75
3.4 Default Display Navigation 76
3.5 Password Entry 77
3.6 Processing Alarms and Records 78
3.7 Menu Structure 78
3.8 Changing the Settings 79
3.9 Direct Access (The Hotkey menu) 80
3.9.1 Setting Group Selection Using Hotkeys 80
3.9.2 Control Inputs 81
3.9.3 Circuit Breaker Control 81
3.10 Function Keys 82
4 Line Parameters 84
4.1 Tripping Mode 84
4.1.1 CB Trip Conversion Logic Diagram 85
4.2 Residual Compensation 85
4.3 Mutual Compensation 86
5 Date and Time Configuration 88
5.1 Using an SNTP Signal 88
5.2 Using an IRIG-B Signal 88
5.3 Using an IEEE 1588 PTP Signal 88
5.4 Without a Timing Source Signal 89
5.5 Time Zone Compensation 89
5.6 Daylight Saving Time Compensation 90
6 Settings Group Selection 91
Chapter 6 Sampled Value Operation 93
1 Chapter Overview 95
2 Introduction To Sampled Values 96
3 Data Resampling 97
4 Sampled Value Alignment 98
4.1 Channel mappings for SAV Test, SAV Questionable, SAV Invalid 98
4.2 Data Quality 98
4.2.1 Impact of Data Quality on Protection Functions 99
4.3 Process Bus Performance 99
4.3.1 Sample Loss Data 100
4.4 VT Switching 100
4.5 Virtual Inputs and Outputs 101
4.5.1 P446, P546, P841B Virtual Inputs and Outputs DDBs 101
4.5.2 Virtual CT and VT Ratio Settings 101
4.6 IED Alarms 102
4.6.1 P446, P546, P841B Alarms 102
Chapter 7 Distance Protection 105
1 Chapter Overview 107
2 Introduction 108
2.1 Distance Protection Principle 108
2.2 Performance Influencing Factors 108
2.3 Impedance Calculation 109
2.4 Implementation with Comparators 109
2.5 Polarization of Distance Characteristics 109
3 Distance Measuring Zones Operating Principles 110
3.1 Mho Characteristics 111
3.1.1 Directional Mho Characteristic for Phase Faults 111
3.1.2 Offset Mho Characteristic for Phase Faults 111
P446SV Contents
P446SV-TM-EN-1 iii

GE MiCOM P40 Specifications

General

Brand	GE
Model	MiCOM P40
Category	Relays
Language	English