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Siemens Argus 8 7SG11 Manual page 73

Voltage and frequency relays

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Contents
1 Introduction ........................................................................................................................................................ 3
2 Required test equipment .................................................................................................................................... 3
3 Commissioning tests .......................................................................................................................................... 4
3.1 Inspection .................................................................................................................................................. 4
3.2 Insulation ................................................................................................................................................... 4
3.3 Wiring Check ............................................................................................................................................. 4
3.4 Auxiliary Supply Check .............................................................................................................................. 4
3.5 Energising the Relay.................................................................................................................................. 5
3.6 Visual Inspection........................................................................................................................................ 5
3.7 Precautions................................................................................................................................................ 5
3.8 Status Input Tests ...................................................................................................................................... 5
3.9 Output Relay Tests .................................................................................................................................... 6
3.10 Voltage Input Tests .................................................................................................................................... 7
3.11 Applying Settings ....................................................................................................................................... 7
3.12 Optional Test ............................................................................................................................................. 7
3.12.1 Under/Over Voltage Element.......................................................................................................... 7
4 Putting into service ............................................................................................................................................. 8
4.1 On-load Testing ......................................................................................................................................... 8
4.2 Final Checks .............................................................................................................................................. 8
5 Trouble shooting................................................................................................................................................. 9
Tables
Table 1 - Status Input Tests...............................................................................................................................11
Table 2 - Output Relay Tests.............................................................................................................................11
Table 3 - Measured Voltages.............................................................................................................................12
Table 4 - Under/Over Voltage Element Tests ....................................................................................................12
©2010 Siemens Protection Devices Limited
7SG11 Argus 8 Commissioning
Chapter 7 Page 2 of 12

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