Compartments Of Withdrawable Type Switchgear - ABB Uniswitch Operation And Maintenance Manual

3.2.2 Compartments of withdrawable type switchgear

Figure 3.2
Withdrawable type switchgear (front and left views).
10
Enclosure
10.3
Pressure relief flap
10.2
Door of LV-compartment
10.1
Door of HV-compartments
41
Branch conductor
40
Busbar
41.1 Post insulators for branch bars
41.2
Fixed contact
46.1
Earthing switch
45.1
Current transformers
11.2
Main earthing bar
11.1
Cable clamp
The enclosure is completed by the top-mounted pressure relief flap which is common for the two high-
voltage compartments. This flap will open in the case of overpressure due to an internal arc fault.
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Uniswitch Operation and
Maintenance Manual
10.4
Non-metallic partition
10.5
Non-metallic shutter
44.4
Control wiring plug connector
44
Withdrawable part
61
Earthing switch operating mechanism
61.2
Operating shaft for earthing switch
60.1 Spindle mechanism
60.5
Lever (shutter lifting)
60.6
Opening pushbutton
60.7
Closing pushbutton
45.2
Voltage transformers
12.1
Travel trails
9
UNI S14GB 05-02