Siemens Argus 7SR21 - Section 1: Common Functions;Section 2: Protection Functions

7SR21 & 7SR22 Performance Specification
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Contents
Software Revision History ................................................................................................................ 2
Section 1: Common Functions ......................................................................................................... 8
1.1 General ................................................................................................................................ 8
1.1.1 CE Conformity ......................................................................................................... 8
1.1.2 Reference ................................................................................................................ 8
1.1.3 Dimensions .............................................................................................................. 8
1.1.4 Weights ................................................................................................................... 9
1.2 Energising Quantities ......................................................................................................... 10
1.2.1 Auxiliary Power Supply .......................................................................................... 10
1.2.2 AC Current............................................................................................................. 11
1.2.3 AC Voltage ............................................................................................................ 12
1.2.4 Binary (Digital) Outputs .......................................................................................... 13
1.2.5 Binary (Digital) Inputs ............................................................................................. 14
1.3 Functional Performance ..................................................................................................... 15
1.3.1 Instrumentation ...................................................................................................... 15
1.3.2 USB Data Communication Interface ....................................................................... 15
1.3.3 Fibre Optic Serial Data Communication Interface (Optional Rear Mounted Port) ..... 15
1.3.4 RS485 Data Communication Interface (Standard Rear Port) .................................. 15
1.3.5 RS485 Data Communication Interface (Optional Rear Mounted Port) ..................... 15
1.3.6 RS232 Data Communication Interface (Optional Rear Mounted Port) ..................... 15
1.3.7 Fibre Optic Ethernet Data Communication Interface (IEC 61850 Option) ................ 16
1.3.8 Electrical Ethernet Data Communication Interface (IEC 61850 Option) ................... 16
1.3.9 Real Time Clock .................................................................................................... 16
1.4 Environmental Performance ............................................................................................... 17
1.4.1 General.................................................................................................................. 17
1.4.2 Emissions .............................................................................................................. 18
1.4.3 Immunity ................................................................................................................ 18
1.4.4 Mechanical ............................................................................................................ 20
Section 2: Protection Functions ..................................................................................................... 21
2.1 27/59 Phase Under/Over Voltage ....................................................................................... 21
2.1.2 Reference .............................................................................................................. 21
2.1.3 Operate and Reset Level ....................................................................................... 21
2.1.4 Operate and Reset Time ........................................................................................ 21
2.2 27/59 Vx Under/Over Voltage ............................................................................................. 22
2.2.1 Reference .............................................................................................................. 22
2.2.2 Operate and Reset Level ....................................................................................... 22
2.2.3 Operate and Reset Time ........................................................................................ 22
2.3 32 Power............................................................................................................................ 23
2.3.1 Reference .............................................................................................................. 23
2.3.2 Operate and Reset Level ....................................................................................... 23
2.3.3 Operate and Reset Time ........................................................................................ 23
2.3.4 Operate Threshold ................................................................................................. 23
2.4 32S Sensitive Power .......................................................................................................... 24
2.4.1 Reference .............................................................................................................. 24
2.4.2 Operate and Reset Level ....................................................................................... 24
2.4.3 Operate and Reset Time ........................................................................................ 24
2.4.4 Operate Threshold ................................................................................................. 24
2.5 37 Undercurrent ................................................................................................................. 25
2.5.1 Reference .............................................................................................................. 25
2.5.2 Operate and Reset Level ....................................................................................... 25
2.5.3 Operate and Reset Time ........................................................................................ 25
2.6 37G & 37SEF Undercurrent................................................................................................ 26
2.6.1 Reference .............................................................................................................. 26
2.6.2 Operate and Reset Level ....................................................................................... 26