ABB Uniswitch User Manual

ABB 9
Uniswitch Operation and
Maintenance Manual
UNIS14GB 05-02
3.2.2 Compartments of withdrawable type switchgear
Figure 3.2
Withdrawable type switchgear (front and left views).
10
Enclosure
10.4
Non-metallic partition
10.3
Pressure relief flap
10.5
Non-metallic shutter
10.2
Door of LV-compartment
44.4
Control wiring plug connector
10.1
Door of HV-compartments
44
Withdrawable part
41
Branch conductor
61
Earthing switch operating mechanism
40
Busbar
61.2
Operating shaft for earthing switch
41.1
Post insulators for branch bars
60.1
Spindle mechanism
41.2
Fixed contact
60.5
Lever (shutter lifting)
46.1
Earthing switch
60.6
Opening pushbutton
45.1
Current transformers
60.7
Closing pushbutton
11.2
Main earthing bar
45.2
Voltage transformers
11.1
Cable clamp
12.1
Travel trails
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.

ABB Uniswitch Specifications

General

Brand	ABB
Model	Uniswitch
Category	Switch
Language	English