GE MiCOM P40 Technical Manual page 20

Contents
12.2 Scheme Testing
12.2.1 Signal Send Test for Permissive Schemes
12.2.2 Signal Send Test for Blocking Schemes
13 Out of Step Protection
13.1 OST Setting
13.2 Predictive OST Setting
13.3 Predictive and OST Setting
13.4 OST Timer Test
14 Protection Timing Checks
14.1 Overcurrent Check
14.2 Connecting the Test Circuit
14.3 Performing the Test
14.4 Check the Operating Time
15 System Check and Check Synchronism
15.1 Check Synchronism Pass
15.2 Check Synchronism Fail
16 Check Trip and Autoreclose Cycle
17 End-to-End Communication Tests
17.1 Remove Local Loopbacks
17.1.1 Restoring Direct Fibre Connections
17.1.2 Restoring C37.94 Fibre Connections
17.1.3 Communications using P59x Interface Units
17.2 Remove Remote Loopbacks
17.3 Verify Communication between IEDs
18 End-to-End Scheme Tests
18.1 Aided Scheme 1
18.1.1 Preparation at Remote End
18.1.2 Performing the Test
18.1.3 Channel Check in the Opposite Direction
18.2 Aided Scheme 2
19 Onload Checks
19.1 Confirm Current Connections
19.2 Confirm Voltage Connections
19.3 On-load Directional Test
20 Final Checks
21 Commmissioning the P59x
21.1 Visual Inspection
21.2 Insulation
21.3 External Wiring
21.4 P59x Auxiliary Supply
21.5 P59x LEDs
21.6 Received Optical Signal Level
21.7 Optical Transmitter Level
21.8 Loopback Test
Chapter 25 Maintenance and Troubleshooting
1 Chapter Overview
2 Maintenance
2.1 Maintenance Checks
2.1.1 Alarms
2.1.2 Opto-isolators
2.1.3 Output Relays
2.1.4 Measurement Accuracy
2.2 Replacing the Device
2.3 Repairing the Device
2.4 Removing the front panel
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