Cradle-assist assemblies attached to the breaker cradle housing and/or base or residing at least partially in the breaker cradle housing and/or base include at least one actuator configured to laterally translate the at least one right and the at least one left lock members from the extended lock position to the retracted unlocked position in response to input from a user. The at least one actuator and/or transverse member(s) can be held in a defined position so that the lock members of the cradle can be locked in the respective retracted or extended positions until the cradle assist (internal) lock is manually or automatically released.

One embodiment of a bogie apparatus may comprise: a horizontal frame; vertical frames respectively coupled to both ends of the horizontal frame and provided in a pair; an end bar having both end parts respectively coupled to one end of the pair of horizontal frames; and a connector assembly coupled to the end bar so as to move in at least one direction among upward, downward, left, and right directions. The connector assembly may comprise: a socket portion having a plurality of wiring terminals; a socket mounting portion having the socket portion mounted thereon, and provided in a plate shape; and a guide bushing formed so as to protrude from the socket mounting portion and away from the socket portion, and having a hollow.

The present disclosure relates to a withdrawable base module for a switch. The withdrawable base module comprises a base coupled to a busbar for electrically connected to the switch; a conversion assembly coupled to the base and comprising a drive mechanism, a first female contact and a carrying mechanism adapted to carry the switch; and an auxiliary assembly being slidable relative to the conversion assembly and comprising a first male contact electrically connected to the switch; wherein the drive mechanism is operable to drive the auxiliary assembly to cause the first male contact to move towards and contact the first female contact. The withdrawable base module according to embodiments of the present disclosure can provide a test circuit for the switch, and can achieve the rocking-in or rocking-out of the switch without additional human intervention after completion of the test.

Cradle-assist assemblies attached to the breaker cradle housing and/or base or residing at least partially in the breaker cradle housing and/or base include at least one actuator configured to laterally translate the at least one right and the at least one left lock members from the extended lock position to the retracted unlocked position in response to input from a user. The at least one actuator and/or transverse member(s) can be held in a defined position so that the lock members of the cradle can be locked in the respective retracted or extended positions until the cradle assist (internal) lock is manually or automatically released.

Cradle-assist assemblies attached to the breaker cradle housing and/or base or residing at least partially in the breaker cradle housing and/or base include at least one actuator configured to laterally translate the at least one right and the at least one left lock members from the extended lock position to the retracted unlocked position in response to input from a user. The at least one actuator and/or transverse member(s) can be held in a defined position so that the lock members of the cradle can be locked in the respective retracted or extended positions until the cradle assist (internal) lock is manually or automatically released.

An apparatus includes a housing having a gas-insulated compartment and a non-gas-insulated receptacle therein. The receptacle is disposed adjacent to the gas-insulated compartment and configured for removable insertion of a circuit interrupter assembly therein. A bus is disposed in the gas-insulated compartment, and a contact is disposed in the receptacle, electrically coupled to the bus in the gas-insulated compartment and configured to mate with a terminal of the circuit interrupter assembly when the circuit interrupter assembly is installed in the receptacle. The receptacle may be configured for insertion of an insulation-encapsulated circuit interrupter pole unit and the apparatus may include at least one flexible insulation member attached to a side wall of the receptacle and configured to engage a sidewall of the pole unit.

An apparatus includes a housing having a gas-insulated compartment and a non-gas-insulated receptacle therein. The receptacle is disposed adjacent to the gas-insulated compartment and configured for removable insertion of a circuit interrupter assembly therein. A bus is disposed in the gas-insulated compartment, and a contact is disposed in the receptacle, electrically coupled to the bus in the gas-insulated compartment and configured to mate with a terminal of the circuit interrupter assembly when the circuit interrupter assembly is installed in the receptacle. The receptacle may be configured for insertion of an insulation-encapsulated circuit interrupter pole unit and the apparatus may include at least one flexible insulation member attached to a side wall of the receptacle and configured to engage a sidewall of the pole unit.

A switching device including a switching unit with one or more electric poles having an insulating casing. The switching device is reversibly movable between an insertion position, at which said switching unit is electrically connected with an electric line, and a withdrawal position, at which said switching unit is electrically disconnected from said electric line. One or more actuating elements may be operatively coupleable with an actuating mechanism of a shutter device to operate one or more shutters of the shutter device during the movement of the switching device. The actuating elements may be fixed to the switching unit. At least one of the actuating elements includes a first mechanical connection with the insulating casing of at least one of the electric poles, and the insulating casing of at least one of the electric poles includes a second mechanical connection with at least one of the actuating elements.

A switching device including a switching unit with one or more electric poles having an insulating casing. The switching device is reversibly movable between an insertion position, at which said switching unit is electrically connected with an electric line, and a withdrawal position, at which said switching unit is electrically disconnected from said electric line. One or more actuating elements may be operatively coupleable with an actuating mechanism of a shutter device to operate one or more shutters of the shutter device during the movement of the switching device. The actuating elements may be fixed to the switching unit. At least one of the actuating elements includes a first mechanical connection with the insulating casing of at least one of the electric poles, and the insulating casing of at least one of the electric poles includes a second mechanical connection with at least one of the actuating elements.

Power receiving/distributing equipment is composed of a switchgear incorporated for each major electric path section, wherein, when arc fault occurs on an electric path to which a circuit breaker is connected, a high-speed closing device closes to detour arc current so as to flow to a ground conductor, thereby eliminating arc at a fault electric path portion. The high-speed closing device is connected to one pole or both poles of a breaking portion of the circuit breaker, and is incorporated into an insulating support member on a corresponding pole electric path so as to be able to be drawn as a whole.