Siemens 7SR12 Argus - Section 1: Common Functions;Section 2: Protection Functions

7SR11 & 7SR12 Performance Specification
©2017 Siemens Protection Devices Limited Chapter 3 Page 3 of 56
Contents
Section 1: Common Functions ................................................................................................................................. 6
1.1 General ................................................................................................................................................... 6
1.1.1 CE Conformity ........................................................................................................................... 6
1.1.2 Reference ................................................................................................................................. 6
1.1.3 Dimensions ............................................................................................................................... 6
1.1.4 Weights ..................................................................................................................................... 7
1.2 Energising Quantities .............................................................................................................................. 8
1.2.1 Auxiliary Power Supply ............................................................................................................. 8
1.2.2 AC Analogue Current .............................................................................................................. 10
1.2.3 AC Analogue Voltage .............................................................................................................. 10
1.2.4 Binary (Digital) Outputs ........................................................................................................... 11
1.2.5 Binary (Digital) Inputs .............................................................................................................. 11
1.3 Functional performance ........................................................................................................................ 12
1.3.1 Instrumentation ....................................................................................................................... 12
1.3.2 Real Time Clock ...................................................................................................................... 12
1.4 Data Communication Interfaces ............................................................................................................ 13
1.4.1 USB 2.0 Data Communication Interface ................................................................................. 13
1.4.2 RS485 Data Communication Interface .................................................................................... 13
1.4.3 Fibre Optic Ethernet Data Communication Interface (IEC 61850 Option) ............................... 13
1.4.4 Electrical Ethernet Data Communication Interface (IEC 61850 Option) .................................. 13
1.5 Environmental Performance .................................................................................................................. 14
1.5.1 General ................................................................................................................................... 14
1.5.2 Emissions................................................................................................................................ 15
1.5.3 Immunity ................................................................................................................................. 15
1.5.4 Mechanical .............................................................................................................................. 17
Section 2: Protection Functions ............................................................................................................................. 18
2.1 27/59 Under/over voltage ...................................................................................................................... 18
2.1.1 Reference ............................................................................................................................... 18
2.1.2 Operate and Reset Level ........................................................................................................ 18
2.1.3 Operate and Reset Time ......................................................................................................... 18
2.2 32 Power ............................................................................................................................................... 19
2.2.1 Reference ............................................................................................................................... 19
2.2.2 Operate and Reset Level ........................................................................................................ 19
2.2.3 Operate and Reset Time ......................................................................................................... 19
2.2.4 Operate Threshold .................................................................................................................. 19
2.3 32S Sensitive Power ............................................................................................................................. 20
2.3.1 Reference ............................................................................................................................... 20
2.3.2 Operate and Reset Level ........................................................................................................ 20
2.3.3 Operate and Reset Time ......................................................................................................... 20
2.3.4 Operate Threshold .................................................................................................................. 20
2.4 37 Undercurrent .................................................................................................................................... 21
2.4.1 Reference ............................................................................................................................... 21
2.4.2 Operate and Reset Level ........................................................................................................ 21
2.4.3 Operate and Reset Time ......................................................................................................... 21
2.5 46 Negative Phase Sequence Overcurrent .......................................................................................... 22
2.5.1 Reference (46DT) ................................................................................................................... 22
2.5.2 Operate and Reset Level (46DT) ............................................................................................ 22
2.5.3 Operate and Reset Time (46DT) ............................................................................................. 22
2.5.4 Reference (46IT) ..................................................................................................................... 22
2.5.5 Operate and Reset Level (46IT) .............................................................................................. 22
2.5.6 Operate and Reset Time (46IT) .............................................................................................. 23
2.6 47 Negative Phase Sequence Voltage................................................................................................. 24
2.6.1 Reference (47) ........................................................................................................................ 24
2.6.2 Operate and Reset Level (47) ................................................................................................. 24
2.6.3 Operate and Reset Time (47) ................................................................................................. 24
2.7 49 Thermal Overload ............................................................................................................................ 25
2.7.1 Reference ............................................................................................................................... 25
2.7.2 Operate and Reset Level ........................................................................................................ 25
2.7.3 Operate and Reset Time ......................................................................................................... 25
2.8 50 Instantaneous Overcurrent ............................................................................................................... 27