GE Kelman DGA900 Operator's Manual page 3

Transformer oil dissolved gas and moisture monitor
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6.10.3 SMS Alerting.................................................................................................................................................................. 38
6.10.4 Firewall ............................................................................................................................................................................ 39
6.10.5 Communication Services ........................................................................................................................................ 40
6.11 Service ................................................................................................................................................... 41
6.11.1 Measurement ............................................................................................................................................................... 41
6.11.2 Controller Reprogramming .................................................................................................................................... 42
6.11.3 I/O PCB Reprogramming ......................................................................................................................................... 43
6.11.4 Oxygen Sensor ............................................................................................................................................................. 44
6.11.5 Gas Normalization ..................................................................................................................................................... 45
6.11.6 Factory ............................................................................................................................................................................. 45
6.11.7 User Administration .................................................................................................................................................. 48
6.12 TransOpto ............................................................................................................................................ 50
6.12.1 Measurements ............................................................................................................................................................. 50
6.12.2 Rate of Change ............................................................................................................................................................ 50
6.12.3 Alarms .............................................................................................................................................................................. 51
6.12.4 Rate of Change Alarms ............................................................................................................................................ 52
6.12.5 Channels ......................................................................................................................................................................... 53
6.12.6 Settings ........................................................................................................................................................................... 53
6.13 Logout .................................................................................................................................................... 54
6.14 Shutdown Procedure ....................................................................................................................... 55
6.15 Error Notifications ............................................................................................................................ 56
6.15.1 Error Codes.................................................................................................................................................................... 58
6.15.2 Other Notifications .................................................................................................................................................... 59
7
Manual Oil Sampling ............................................................................... 60
7.1
Sampling Arrangement ................................................................................................................... 60
7.2
Local HMI for manual sampling ................................................................................................... 61
7.3
Sampling Process .............................................................................................................................. 65
8
Communications ..................................................................................... 67
8.1
DNP3 ...................................................................................................................................................... 67
8.2
IEC 61850 ............................................................................................................................................. 67
8.3
Modbus Protocol ............................................................................................................................... 67
8.4
HTTP / HTTPS Protocol .................................................................................................................... 67
9
Technical Support ................................................................................... 67
Appendix A Security Configuration ............................................................ 68
Appendix B Transportation PGA Lock ........................................................ 75
Appendix C Maintenance Activities ........................................................... 79
Appendix D Time Sync Implementation ..................................................... 85
Alarm Settings: General Advice ............................................. 87
Contact & Copyright Details .......................................................................... 92
MA-025 - DGA 900 Operator Guide - Rev 2.0
12-Apr-19
Page 3 of 92

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