Siemens 7SG11 - Description of Operation; Introduction to Argus 8 Relays

7SG11 Argus 8 Description of Operation
Contents
1 Introduction..........................................................................................................................................4
3 Protection Functions....................................................................................................................8
3.1 Voltage Blocking Element............................................................................................................8
3.2 Voltage Elements ........................................................................................................................8
3.3 NPS Overvoltage Elements.........................................................................................................9
3.4 NVD Overvoltage Elements.........................................................................................................9
3.5 Frequency Elements....................................................................................................................9
3.6 Two Systems Connection..........................................................................................................10
3.7 External Tripping .......................................................................................................................10
4 Other Features ..........................................................................................................................10
4.1 Metering.....................................................................................................................................10
4.2 Data Storage .............................................................................................................................11
4.2.1 Waveform Records..........................................................................................................11
4.2.2 Event Records.................................................................................................................11
4.2.3 Fault Data Records .........................................................................................................12
4.3 Communications........................................................................................................................12
4.4 General Alarm Screens .............................................................................................................13
4.5 Default Instrument Screens.......................................................................................................13
4.6 Multiple Settings Groups. ..........................................................................................................13
4.7 Password Feature .....................................................................................................................13
4.8 Trip Circuit Supervision .............................................................................................................14
5 User Interface............................................................................................................................14
5.1 Liquid Crystal Display................................................................................................................14
5.2 LED Indications .........................................................................................................................14
5.3 Keypad.......................................................................................................................................14
5.4 Navigating the Menu System.....................................................................................................14
Table of Figures
Figure 1 - Voltage Element.......................................................................................................................8
Figure 2 - NPS Overvoltage Element.......................................................................................................9
Figure 3 - NVD Overvoltage Element.......................................................................................................9
Figure 4 - Frequency Element................................................................................................................10
Figure 5 - Display Menu Structure..........................................................................................................20
Tables
Table 1 - Argus 8 - 2 Pole Variants...........................................................................................................................5
Table 2 - Argus 8 - 3 Pole Variants...........................................................................................................................5
Table 3 - Output Relay Types ...................................................................................................................................6
Table 4 - Connection Table (E4 Versions) ..............................................................................................................16
Table 5 - Connection Table (E6 Versions) ..............................................................................................................17
Table 6 - Event Codes ............................................................................................................................................19
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