TRANSFER DEVICE ASSEMBLY OF MOVABLE CONTACTS OF ELECTRICAL DEVICES Russian patent published in 2020 - IPC H01H3/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to transfer device of movable contacts of electrical devices and is used in cabin metal-clad switchgear. Transfer device comprises housing base (1) and side walls (2) and (3). Two drive shafts (7) and (4) are installed coaxially in side walls with possibility of rotation independently from each other. Below them, at one height and spaced along depth, in side walls (3) and (2) there are two hollow shafts with torsion bars. Side walls are fixed by rods. Drive shafts (7) and (4) are connected with torsion bars by means of levers and tie rods arranged on outer side of walls (3) and (2). Hollow shafts are fastened with torsion bars by fasteners (14). Locking disks and turn limiters are fixed on hollow shafts. When a command is sent to short-circuit the contacts of the electrical apparatus, movement from the source of mechanical energy through the rod and lever (8) is transmitted to drive shaft (7), and then through levers and thrust to torsion bar (12). Hollow shaft (13) does not rotate as it is locked by locking plates resting against lock disk. At further twisting of torsion bar (12), cam (20) fixed on it, pushes locking plate from locking disc. Hollow shaft rotates against stop in sector cutout of rotation limiter. Through the lever fixed on hollow shaft (13), the traction and the earring movement is transmitted to the movable contact of the electrical apparatus.

EFFECT: reduced dimensions of the assembly of the transmitting device of the movable contacts drive and the distribution device cabinet.

4 cl, 6 dwg