ABB Uniswitch Operation And Maintenance Manual

Contents

ABB Uniswitch Operation And Maintenance Manual Manual pdf 12 page image

ABB 9Uniswitch Operation andMaintenance Manual UNI S14GB 05-023.2.2 Compartments of withdrawable type switchgearFigure 3.2Withdrawable type switchgear (front and left views).10 Enclosure 10.4 Non-metallic partition10.3 Pressure relief flap 10.5 Non-metallic shutter10.2 Door of LV-compartment 44.4 Control wiring plug connector10.1 Door of HV-compartments 44 Withdrawable part41 Branch conductor 61 Earthing switch operating mechanism40 Busbar 61.2 Operating shaft for earthing switch41.1 Post insulators for branch bars 60.1 Spindle mechanism41.2 Fixed contact 60.5 Lever (shutter lifting)46.1 Earthing switch 60.6 Opening pushbutton45.1 Current transformers 60.7 Closing pushbutton11.2 Main earthing bar 45.2 Voltage transformers11.1 Cable clamp 12.1 Travel trailsThe 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.