METALCLAD SWITCHGEAR Russian patent published in 2003 - IPC

FIELD: electrical engineering. SUBSTANCE: metal-clad switchgear designed for three-phase power distribution at frequency of 50 and 60 Hz and at voltage of 6-10 kV has draw-out component provided with mechanism for setting it in working and check-up positions and vice versa with doors held closed. Metal strip mounted bushing is provided in partition inserted between collecting-bus compartment and drawout component compartment. Bottom current-conducting contact is fixed to current transformer. Insulating partition fitted between compartments of current transformer and draw-out component has air clearance ensuring air insulation for bottom fixed conducting contact of cubicle and movable contact of draw-out component. Doors provided with lifting and locking device are tightly fitted over perimeter of opening in draw-out component compartment. EFFECT: enhanced safety in servicing. 1 cl, 5 dwg