GE Kelman DGA 900 Plus Installation & Commissioning Manual page 6

Figure 10-15: OltcGroups.cfg .................................................................................................................. 84
Figure 10-16: OltcRefData.cfg................................................................................................................. 84
Figure 10-17: Required files for OLTC commissioning .......................................................................... 85
Figure 10-18: Configuration Import – TapPositionCalibration.cfg, OltcGroups.cfg & OltcRefData.cfg 85
Figure 10-19: OLTC Tap Position Tracking Configuration...................................................................... 86
Figure 10-20: BMT > General Settings .................................................................................................... 87
Figure 10-21: BMT > Configuration ......................................................................................................... 87
Figure 10-22: Voltage Measurement ...................................................................................................... 88
Figure 10-23: Bushing ............................................................................................................................. 88
Figure 10-24: Exponential Moving Average Configuration .................................................................... 89
Figure 10-25: Measured Phase Angle ..................................................................................................... 89
Figure 10-26: Bushing Alarms Configuration ......................................................................................... 90
Figure 10-27: Exponential Moving Average Configuration .................................................................... 90
Figure 10-28: Live HF Noise .................................................................................................................... 90
Figure 10-29: HF Gain Control ................................................................................................................ 91
Figure 10-30: PD > Primary > Associated ............................................................................................... 91
Figure 10-31: PD Alarms Configuration > Primary PDI .......................................................................... 92
Figure 10-32: PD > Primary > Avg Apparent Charge .............................................................................. 92
Figure 10-33: PD Alarms Configuration > Primary PD value ................................................................. 92
Figure 10-34: PD > Primary > Max Apparent Charge ............................................................................. 93
Figure 10-35: PD Alarms Configuration > Primary PD value ................................................................. 94
Figure 10-36: PD Alarms Configuration > Primary B PD Max ................................................................ 94
Figure 10-37: PD Alarms Configuration > Primary C PD Max ................................................................ 94
Figure 10-38: BMT > General Settings .................................................................................................... 95
Figure 10-39: Bushing Adaptor Failure Alarms ...................................................................................... 95
Table A-1: GE-supplied items ................................................................................................................. 96
Table A-2: GE FSE-supplied items .......................................................................................................... 97
Table A-3: Customer-supplied items...................................................................................................... 98
Related Documents
Ref# Title
MA-024 DGA 900 Installation Manual
MA-025 DGA 900 Operator Guide
MA-040 DGA 900 Plus - Operator Guide
Abbreviations & Definitions
Abbreviation Meaning
HFCT High Frequency Current Transformer
HMI Human Machine Interface
HV High Voltage
LOTO Lock Out, Tag Out procedure
LV Low Voltage
OLTC On Load Tap Changer
PD Partial Discharge
RTD Resistive Temperature Detectors
MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1 4-Mar-22 Page 6 of 99