Tettex 2293 - Magnetic Balance; Measurement; Short circuit impedance; Dynamic resistance on tap changer

VI
Introduction
13.5.1 Measurement steps ..................................................................... 135
13.5.2 Set up DUT data ......................................................................... 135
13.5.3 Data handling definitions ............................................................. 136
13.5.4 Test Voltage Selection ................................................................ 136
13.5.5 Test frequency selection ............................................................. 137
13.5.6 Magnetic Imbalance selection ..................................................... 137
13.5.7 Delta Winding Configuration selection ......................................... 137
13.5.8 Measuring ................................................................................... 138
13.5.9 Exporting and printing results ...................................................... 140
13.6 Application hints ....................................................................................... 141
13.6.1 Core Magnetization ..................................................................... 141
13.6.2 Winding short-circuits .................................................................. 141
14 Short circuit impedance 143
14.1 Overview .................................................................................................. 143
14.2 Theory ...................................................................................................... 143
14.2.1 Definitions ................................................................................... 143
14.3 User interface ........................................................................................... 144
14.3.1 Function keys .............................................................................. 144
14.3.2 Active window ............................................................................. 145
14.4 Measurement ........................................................................................... 145
14.4.1 Measurement procedure ............................................................. 145
14.4.2 Transformer connection .............................................................. 146
14.4.3 Set up DUT data ......................................................................... 147
14.4.4 Measurement Settings ................................................................ 147
14.4.5 Data Handling ............................................................................. 149
14.4.6 Tap Control ................................................................................. 149
14.4.7 Miscellaneous ............................................................................. 149
14.4.8 Measuring ................................................................................... 150
14.4.9 Measurement results ................................................................... 150
14.4.10 Exporting and printing results ...................................................... 151
15 Dynamic resistance on tap changer 152
15.1 Overview .................................................................................................. 152
15.2 Theory ...................................................................................................... 152
15.2.1 Tap changer generalities ............................................................. 152
15.2.2 Dynamic resistance test .............................................................. 153
15.3 User Interface .......................................................................................... 155
15.3.1 Function Keys ............................................................................. 155
15.3.2 Active window ............................................................................. 156
15.4 Measurement ........................................................................................... 158
15.4.1 Measurement procedure ............................................................. 158
15.4.2 Transformer Connection .............................................................. 159
15.4.3 Set up DUT data ......................................................................... 161
15.4.4 Measurement Settings ................................................................ 161
15.4.5 Static resistance settings ............................................................. 162
15.4.6 Dynamic resistance settings ........................................................ 163
15.4.7 Temperature settings .................................................................. 165