GE CB Watch 3 User Manual page 5

Figure 46 - Thermodynamic law applied to SF6 gas ................................................................................ 36
Figure 47 - Equivalent density lines and liquefaction curve ................................................................... 37
Figure 48 - Gas sensor alarms ................................................................................................................. 37
Figure 49 - Gas measurements ............................................................................................................... 38
Figure 50 - gas pressure thresholds ........................................................................................................ 39
Figure 51 - Gas thresholds ....................................................................................................................... 40
Figure 52 - Gas alarms ............................................................................................................................. 40
Figure 53 - gas liquefaction pressure ...................................................................................................... 40
Figure 54 - Gas alarms ............................................................................................................................. 41
Figure 55 - Gas moisture level ................................................................................................................. 41
Figure 56 - Moisture alarm threshold ..................................................................................................... 41
Figure 57 - Excessive moisture alarm ...................................................................................................... 42
Figure 61 - Linear gas pressure extrapolation ......................................................................................... 42
Figure 62 - Time horizons setup .............................................................................................................. 43
Figure 63 - Forecasted gas pressure values ............................................................................................ 43
Figure 66 - Gas leak rates (ganged CB) .................................................................................................... 44
Figure 67 - Gas leak rates (IPO CB) .......................................................................................................... 44
Figure 64 - Gas alarms ............................................................................................................................. 44
Figure 58 - gas graph selection ................................................................................................................ 45
Figure 59 - Short-term gas graphs ........................................................................................................... 45
Figure 60 - Long-term gas graphs ............................................................................................................ 46
Figure 72 - Gas level data ........................................................................................................................ 47
Figure 73 - Setting primary current measurement ................................................................................. 49
Figure 74 - Current before and during interruption ................................................................................ 49
Figure 75 - Interrupted current value ..................................................................................................... 50
Figure 76 - Stored interrupted current curve .......................................................................................... 50
Figure 77 - Separation offset input ......................................................................................................... 51
Figure 78 - Opening operation timing diagram ....................................................................................... 51
Figure 79 - Arcing time ............................................................................................................................ 51
Figure 80 - Max arcing time threshold .................................................................................................... 51
Figure 81 - Max arcing time threshold .................................................................................................... 52
Figure 82 - Contact electrical wear cumulative value ............................................................................. 52
Figure 83 - Initial electrical wear setting ................................................................................................. 52
Figure 84 - Opening electrical wear thresholds ...................................................................................... 53
Figure 85 - Arcing contact electrical wear alarms ................................................................................... 53
Figure 86 - Electrical wear weighting table ............................................................................................. 53
Figure 87 - Contact wear alarm summary ............................................................................................... 54
Figure 88 - Contact wear alarm summary ............................................................................................... 55
Figure 89 - Continuous display of DC voltage for source 1 and 2 ........................................................... 56
Figure 90 - DC voltage in last operation measurements ......................................................................... 56
Figure 91 - DC voltage alarm thresholds ................................................................................................. 57
Figure 92 - DC voltage alarms ................................................................................................................. 57
Figure 93 - Coil currents and coil charges ............................................................................................... 57
Figure 94 - Change in coil charge ............................................................................................................ 58
Figure 95 - Graph of coil current during opening or closing operation .................................................. 59
Figure 96 - Drop-down list of previous archives ..................................................................................... 59
Figure 97 - Maximum mean current threshold settings ......................................................................... 60
Figure 98 - Coil charge alarms ................................................................................................................. 60
CB Watch 3 User Manual v6.3 - May 2019 Page 5 of 100