864-5091.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • Revision 06 27/214
Description
11 Make-proof busbar earthing switch
The busbar earthing switch is pre-assembled at the factory.
Fig. 11: Overview of busbar component: Busbar earthing switch
①
Low-voltage compartment
②
SIPROTEC bay controller (option)
③
Gas pressure manometer for circuit-breaker housing
④
Gas filling valve
⑤
Gas pressure manometer for three-position disconnector housing in system 1
⑥
Operating mechanism of three-position disconnector
⑦
Gas pressure manometer for three-position disconnector housing in system 2
⑧
Circuit-breaker operating mechanism
⑨
Capacitive voltage detecting system
⑩
Housing for busbar earthing switch
⑪
Operating unit
⑫
Busbars
⑬
Busbar housing
⑭
Gas pipe
⑮
Switchpanel pole housing with vacuum interrupter
⑯
4MC4 current transformer
⑰
Panel connection housing with inside-cone bushings for cable plugs, voltage transformers and
surge arresters, or for connection of bar systems
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