Siemens SIPROTEC 4 7UT6 Series Manual page 9

2.8
2.8.1
2.8.2
2.8.3
2.8.4
2.9
2.9.1
2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.9.7
2.10
2.10.1
2.10.2
2.10.3
2.10.4
2.11
2.11.1
2.11.2
2.11.3
2.11.4
2.12
2.12.1
2.12.2
2.12.3
2.12.4
2.13
2.13.1
2.13.2
2.13.3
2.13.4
2.14
2.14.1
2.14.2
2.14.3
2.14.4
2.15
2.15.1
2.15.2
2.15.3
2.15.4
2.16
2.16.1
2.16.2
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
Unbalanced Load Protection............................................................................................187
Functional Description............................................................................................... 187
Setting Notes.............................................................................................................193
Settings.....................................................................................................................198
Information List......................................................................................................... 199
Thermal Overload Protection........................................................................................... 200
General..................................................................................................................... 200
Overload Protection Using a Thermal Replica..............................................................200
Overload protection using a thermal replica with ambient temperature influence....... 202
Hot-Spot Calculation and Determination of the Ageing Rate ...................................... 203
Setting Notes.............................................................................................................205
Settings.....................................................................................................................209
Information List......................................................................................................... 210
RTD-Boxes for Overload Detection................................................................................... 211
Functional Description............................................................................................... 211
Setting Notes.............................................................................................................211
Settings.....................................................................................................................211
Information List......................................................................................................... 216
Overexcitation Protection................................................................................................218
Functional Description............................................................................................... 218
Setting Notes.............................................................................................................219
Settings.....................................................................................................................222
Information List......................................................................................................... 222
Reverse Power Protection................................................................................................ 224
Functional Description............................................................................................... 224
Setting Notes.............................................................................................................225
Settings.....................................................................................................................227
Information List......................................................................................................... 228
Forward Power Supervision............................................................................................. 229
Functional Description............................................................................................... 229
Setting Notes.............................................................................................................230
Settings.....................................................................................................................232
Information List......................................................................................................... 232
Undervoltage Protection................................................................................................. 233
Functional Description............................................................................................... 233
Setting Notes.............................................................................................................234
Settings.....................................................................................................................235
Information List......................................................................................................... 235
Overvoltage Protection....................................................................................................236
Functional Description............................................................................................... 236
Setting Notes.............................................................................................................237
Settings.....................................................................................................................237
Information List......................................................................................................... 238
Frequency Protection...................................................................................................... 239
Functional Description............................................................................................... 239
Setting Notes.............................................................................................................240
Table of Contents
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