Siemens SIPROTEC 4 7UT6 Series Manual page 12

Table of Contents
3.2
3.2.1
3.2.2
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
3.3.10
3.3.11
3.3.12
3.3.13
3.3.14
3.4
4 Technical Data.......................................................................................................................................... 395
4.1
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
12
Checking Connections.....................................................................................................349
Checking Data Connections of Interfaces................................................................... 349
Checking the System Connections............................................................................. 351
Commissioning............................................................................................................... 354
Test Mode / Transmission Block..................................................................................355
Test Time Synchronisation Interface...........................................................................355
Testing the System Interface......................................................................................355
Checking the switching states of the binary Inputs/Outputs........................................ 357
Checking the Setting Consistency.............................................................................. 359
Secondary Tests.........................................................................................................365
Circuit Breaker Failure Protection Tests.......................................................................370
Symmetrical, Primary Current Tests on the Protected Object.......................................372
Zero Sequence Current Tests on the Protected Object.................................................378
Current Tests for Busbar Protection............................................................................ 383
Testing of the Non-Assigned 1-Phase Current Inputs.................................................. 385
Checking the Voltage Connections and Polarity Check................................................ 386
Testing User-defined Functions.................................................................................. 390
Stability Check and Triggering Oscillographic Recordings............................................391
Final Preparation of the Device........................................................................................ 393
General...........................................................................................................................396
Analogue Inputs........................................................................................................ 396
Auxiliary Voltage....................................................................................................... 396
Binary Inputs and Outputs .........................................................................................397
Frequency Measurement via the Positive Phase-sequence Voltage U1.........................398
Communications Interfaces....................................................................................... 399
Electrical Tests...........................................................................................................403
Mechanical Tests....................................................................................................... 405
Climatic Stress Test.................................................................................................... 405
Service Conditions..................................................................................................... 406
Construction .............................................................................................................406
Differential Protection..................................................................................................... 408
Restricted Earth Fault Protection......................................................................................414
Time Overcurrent Protection for Residual Current............................................................ 416
Time Overcurrent Protection for Earth Current................................................................. 428
Dynamic Cold Load Pickup for Time Overcurrent Protection............................................. 430
Single-Phase Time Overcurrent Protection....................................................................... 431
Unbalanced Load Protection............................................................................................432
Thermal Overload Protection........................................................................................... 440
RTD-Boxes for Overload Detection................................................................................... 443
Overexcitation Protection................................................................................................444
Reverse Power Protection................................................................................................ 446
Forward Power Supervision............................................................................................. 447
Undervoltage Protection................................................................................................. 449
Overvoltage Protection....................................................................................................450
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016