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
Table of Figures
Figure 1 - Voltage Element....................................................................................................................... 8
Figure 4 - Frequency Element................................................................................................................ 10
Tables
Table 3 - Output Relay Types ...................................................................................................................................6
Table 6 - Event Codes ............................................................................................................................................19
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7SG11 Argus 8 Description of Operation
Chapter 1 Page 2 of 20