METALCLAD SWITCHGEAR CUBICLE Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: metalclad switchgear has body 1 where chamber 5 for entry of buses from adjacent cubicle incorporates interconnected round-section and flat buses. Draw-out chamber 3 accommodates roll-out bogie 7 with front posts 13 which abut on one side face panel 15 of bogie 7 mounting power transformer, power fuses, movable members 26 of power-circuit contacts and movable members 27 of split contacts. Frame of roll-out bogie 7 has rear posts 14, metal box with detachable cover, metal frame 35 with support insulators 36. Bottom part of cubicle has fixed members 30 of split contacts covered with metal case 49 and secured on inner wall 47 of draw-out chamber 3. Metal bracket 38 is mounted on front posts 13 of roll-out bogie 7 below frame 35 carrying support insulators 36. Movable members 26 of power-circuit split contacts are mounted on long rods 28. Bottom insulating box 55 has beveled flange; bottom bushing insulator 51 abuts bevel of insulating box 55. Round-section current-carrying buses running inside bushing insulators 51 are interconnected by means of metal bush and screws. EFFECT: improved design. 10 cl, 10 dwg