MR MSENSE DGA 2 - Page 4

Table of contents
Messko GmbH 20204 BA4001150/10 ENMSENSE
®
DGA 2/3
6.2 Mounting the device.......................................................................................................................... 25
6.2.1 Preparing the transformer and ball valve ............................................................................................................25
6.2.2 Mounting the MSENSE® DGA 2/3......................................................................................................................30
6.3 Electrical connection......................................................................................................................... 39
6.3.1 Electromagnetic compatibility..............................................................................................................................40
6.3.2 Cable recommendation .......................................................................................................................................40
6.3.3 Routing and preparing the cables .......................................................................................................................40
6.3.4 Supply voltage and protective conductor ............................................................................................................41
6.3.5 Device grounding ................................................................................................................................................42
6.3.6 Analog outputs ....................................................................................................................................................42
6.3.7 Main switching contacts ......................................................................................................................................44
6.3.8 SCADA connection .............................................................................................................................................45
6.4 Ensuring offshore capability.............................................................................................................. 48
7 Commissioning................................................................................................................. 51
7.1 Service interface ............................................................................................................................... 51
7.2 Installing the MESSKO® MSET parameterization software ............................................................. 52
7.3 Commissioning in existing systems .................................................................................................. 53
7.4 Parameterization............................................................................................................................... 53
7.4.1 Settings for carbon monoxide (DGA 3 only), hydrogen and H2O concentrations in the oil ................................54
7.4.2 General settings ..................................................................................................................................................55
7.4.3 Modbus settings ..................................................................................................................................................56
8 Operation........................................................................................................................... 58
8.1 Operating the device with display ..................................................................................................... 59
8.1.1 General operation ...............................................................................................................................................60
8.1.2 Main screen / Operating display..........................................................................................................................61
8.1.3 Events .................................................................................................................................................................63
8.2 Operating the device without display ................................................................................................ 64
9 Fault elimination ............................................................................................................... 65
9.1 Messages regarding the safety switching contact ............................................................................ 65
9.2 Other faults ....................................................................................................................................... 66
9.3 Replace safety fuse .......................................................................................................................... 66
10 Maintenance...................................................................................................................... 68
10.1 Inspection ......................................................................................................................................... 68
10.2 Maintenance ..................................................................................................................................... 69