A disc member is for a Thomson coil actuator of an electrical switching apparatus. The Thomson coil actuator has at least one generally planar coil. The disc member includes at least one annular-shaped conductive member structured to be driven by the coil, and a structural support member directly coupled to the conductive member.

A disc member is for a Thomson coil actuator of an electrical switching apparatus. The Thomson coil actuator has at least one generally planar coil. The disc member includes at least one annular-shaped conductive member structured to be driven by the coil, and a structural support member directly coupled to the conductive member.

A speed regulating hand brake mechanism and method for speed regulation of the speed regulating hand brake mechanism is disclosed. The mechanism includes: a housing, wherein an installation cavity is defined inside the housing; a speed regulating button is hinged to the side wall of the housing; an installation cavity is internally provided with the driving part hinged to the speed regulating button; the rack is hinged to the driving part and can slide along the inner wall of the installation cavity in a horizontal direction after receiving the pressing force transmitted from the speed regulating button; the encoder is fixed on a first fixing plate in the installation cavity, the rack drives a gear arranged at the top of the encoder to rotate, and changes the code value output by the encoder; the elastic end of the return piece is located inside the speed regulating button.

An operating mechanism for opening and closing at least two contacts simultaneously is provided. The operating mechanism includes a base frame and a bridge body having an elongate contact surface with a length and a width. The elongate contact surface is configured to extend in a length direction over and be in contact with operating rods of the at least two contacts. The operating mechanism further includes a first reaction arm extending substantially parallel to the length of the elongate contact surface and a second reaction arm extending parallel to the first reaction arm and at a distance of the first reaction arm in the direction perpendicular to the elongate contact surface. The operating mechanism also includes a rod mechanism of two links and a cam arranged on a shaft.

An operating mechanism for opening and closing at least two contacts simultaneously is provided. The operating mechanism includes a base frame and a bridge body having an elongate contact surface with a length and a width. The elongate contact surface is configured to extend in a length direction over and be in contact with operating rods of the at least two contacts. The operating mechanism further includes a first reaction arm extending substantially parallel to the length of the elongate contact surface and a second reaction arm extending parallel to the first reaction arm and at a distance of the first reaction arm in the direction perpendicular to the elongate contact surface. The operating mechanism also includes a rod mechanism of two links and a cam arranged on a shaft.

A current interrupter system has a series arrangement of at least two interrupter units. At least one of the interrupter units is a vacuum tube, and the at least two interrupter units are mechanically connected to a drive system. The drive system has a drive assembly and a drive shaft. The drive shaft is a crank shaft equipped with at least two cranks. The at least two cranks have two crank strokes of different magnitudes.

A current interrupter system has a series arrangement of at least two interrupter units. At least one of the interrupter units is a vacuum tube, and the at least two interrupter units are mechanically connected to a drive system. The drive system has a drive assembly and a drive shaft. The drive shaft is a crank shaft equipped with at least two cranks. The at least two cranks have two crank strokes of different magnitudes.

An input device includes an operation member vertically movably disposed on a support, urging means for urging the operation member upward, and an inclination preventive member reducing inclination of the operation member by coupling first and second ends of the operation member in a first horizontal direction and linking vertical movements of the first and second ends together. The inclination preventive member includes a main shaft extending in the first horizontal direction and rotatably and axially supported by the support, a pair of arms extending from opposite ends of the main shaft toward an identical side of a second horizontal direction crossing the first horizontal direction, and a pair of secondary shafts extending in the first horizontal direction from distal ends of the pair of arms, and rotatably and axially supported by the first and second ends. The pair of arms include short and long arms.

A latching relay includes first and second coils and a common plunger operatively connected therebetween such that activation of the first coil moves the plunger in a first direction and activation of the second coil moves the plunger in a second direction, opposite the first direction, the first and second directions lying in a first plane. A limit switch includes a common contact and first and second coil contacts, where a position of the common contact is alternately switched between electrical connection to either the first or second coil contact based on a position of the plunger. A slide toggle accessible by a user is operatively connected to the plunger and slideable together with the plunger such that actuation of the slide toggle by the user causes manual actuation of the plunger. The slide toggle is slideable in a second plane parallel to the first plane.

A particularly reliable quick release latch and a release mechanism, as well as a quick grounding device or short circuiter, is particularly suited for low, medium, and/or high-voltage applications.