GE MiCOM P40 Technical Manual page 22

Contents
3.6 Phase Overcurrent Protection
3.6.1 Transient Overreach and Overshoot
3.6.2 Phase Overcurrent Directional Parameters
3.7 Earth Fault Protection
3.7.1 Earth Fault Directional Parameters
3.8 Sensitive Earth Fault Protection
3.8.1 Sensitive Earth Fault Protection Directional Element
3.9 High Impedance Restricted Earth Fault Protection
3.10 Negative Sequence Overcurrent Protection
3.10.1 NPSOC Directional Parameters
3.11 Circuit Breaker Fail and Undercurrent Protection
3.12 Broken Conductor Protection
3.13 Thermal Overload Protection
4 Monitoring, Control and Supervision
4.1 Voltage Transformer Supervision
4.2 Standard Current Transformer Supervision
4.3 Differential Current Transformer Supervision
4.4 CB State and Condition Monitoring
4.5 PSL Timers
5 Measurements and Recording
5.1 General
5.2 Disturbance Records
5.3 Event, Fault and Maintenance Records
5.4 Fault Locator
6 Ratings
6.1 AC Measuring Inputs
6.2 Current Transformer Inputs
6.3 Voltage Transformer Inputs
6.4 Auxiliary Supply Voltage
6.5 Nominal Burden
6.6 Power Supply Interruption
6.7 Battery Backup
7 Input / Output Connections
7.1 Isolated Digital Inputs
7.1.1 Nominal Pickup and Reset Thresholds
7.2 Standard Output Contacts
7.3 High Break Output Contacts
7.4 Watchdog Contacts
8 Mechanical Specifications
8.1 Physical Parameters
8.2 Enclosure Protection
8.3 Mechanical Robustness
8.4 Transit Packaging Performance
9 Type Tests
9.1 Insulation
9.2 Creepage Distances and Clearances
9.3 High Voltage (Dielectric) Withstand
9.4 Impulse Voltage Withstand Test
10 Environmental Conditions
10.1 Ambient Temperature Range
10.2 Temperature Endurance Test
10.3 Ambient Humidity Range
10.4 Corrosive Environments
11 Electromagnetic Compatibility
11.1 1 MHz Burst High Frequency Disturbance Test
11.2 Damped Oscillatory Test
11.3 Immunity to Electrostatic Discharge
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P446SV-TM-EN-1