The invention relates to a medium voltage switching apparatus.

The medium voltage switching apparatus comprises:

one or more electric poles, each electrically coupleable with a corresponding electric line;

for each electric pole, a fixed contact and a movable contact, said movable contact being reversibly movable between a decoupled position from said fixed contact and a coupled position with said fixed contact, said movable contact moving from said decoupled position to said coupled position during an closing manoeuvre of the switching apparatus and moving from said coupled position to said decoupled position during an opening manoeuvre of the switching apparatus;

actuating means adapted to actuate the movable contacts of said one or more electric poles.

The switching apparatus is operatively coupled with or comprises a control unit to control said actuating means.

Said control unit comprises a plurality of input arrangements, at which said control unit can receive input signals provided by one or more devices operatively coupled with or included in said control unit.

Said control unit is adapted to carry out a plurality of selectable control routines to control said actuating means during a manoeuvre of said switching apparatus.

Said control unit is adapted to select and carry out a selectable control routine in response to receiving an input signal at an input arrangement corresponding to said selectable routine.

The invention relates to a medium voltage switching apparatus.

The medium voltage switching apparatus comprises:

one or more electric poles, each electrically coupleable with a corresponding electric line;

for each electric pole, a fixed contact and a movable contact, said movable contact being reversibly movable between a decoupled position from said fixed contact and a coupled position with said fixed contact, said movable contact moving from said decoupled position to said coupled position during an closing manoeuvre of the switching apparatus and moving from said coupled position to said decoupled position during an opening manoeuvre of the switching apparatus;

actuating means adapted to actuate the movable contacts of said one or more electric poles.

The switching apparatus is operatively coupled with or comprises a control unit to control said actuating means.

Said control unit comprises a plurality of input arrangements, at which said control unit can receive input signals provided by one or more devices operatively coupled with or included in said control unit.

Said control unit is adapted to carry out a plurality of selectable control routines to control said actuating means during a manoeuvre of said switching apparatus.

Said control unit is adapted to select and carry out a selectable control routine in response to receiving an input signal at an input arrangement corresponding to said selectable routine.

A circuit breaker racking system and method may include a movable A-frame operable to attach to and release a circuit breaker, and move it forward and rearward along two space-apart arms. Rails associated with each of the arms may be movable upward and downward to lift and release the circuit breaker from a floor or platform. A drive screw assembly on the circuit breaker racking system may be actuated to pull a circuit breaker forward out of a cabinet or to push the circuit breaker back into the cabinet by engaging with a screw mounted to a wall of the cabinet. The circuit breaker racking system may be manually operated and moved about a control room, or may be remotely moved and actuated by an operator outside of the control room.

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 cradle intended to be incorporated in a high-voltage electrical switchgear cubicle, including a mobile trolley bearing a switch apparatus provided with mobile contacts, a mechanism for operating the mobile contacts via operating springs and at least one coil for actuating the operating springs, a motorized protection shutter intended to prevent access to conductive busbars of the switchgear cubicle, and motorized device for driving the mobile trolley intended to be able to connect the switch apparatus to the conductive busbars. A first automation controller is embedded on the mobile trolley to control the operating mechanism and the actuating coil, and a second automation controller is embedded in the cradle to control the protection shutter and the device for driving the mobile trolley.

A cradle intended to be incorporated in a high-voltage electrical switchgear cubicle, including a mobile trolley bearing a switch apparatus provided with mobile contacts, a mechanism for operating the mobile contacts via operating springs and at least one coil for actuating the operating springs, a motorized protection shutter intended to prevent access to conductive busbars of the switchgear cubicle, and motorized device for driving the mobile trolley intended to be able to connect the switch apparatus to the conductive busbars. A first automation controller is embedded on the mobile trolley to control the operating mechanism and the actuating coil, and a second automation controller is embedded in the cradle to control the protection shutter and the device for driving the mobile trolley.

A switchgear or control gear includes at least one first compartment; a plurality of removable modules; a plurality of main switchgear or control gear components; and a plurality of auxiliary switchgear or control gear components. The plurality of main switchgear or control gear components includes at least one main busbar system, at least one three position linear or rotational movement disconnector, at least one circuit breaker, and at least one cable connection. The plurality of auxiliary switchgear or control gear components includes at least one disconnector drive and at least one circuit breaker drive. The plurality of removable modules are configured to be mounted horizontally within the at least one first compartment at a plurality of horizontal locations. Movement of a removable module from its horizontal location, the movement including a vertical movement, is configured to move the one or more auxiliary components housed in or associated with that module.

A switchgear or control gear includes at least one first compartment; a plurality of removable modules; a plurality of main switchgear or control gear components; and a plurality of auxiliary switchgear or control gear components. The plurality of main switchgear or control gear components includes at least one main busbar system, at least one three position linear or rotational movement disconnector, at least one circuit breaker, and at least one cable connection. The plurality of auxiliary switchgear or control gear components includes at least one disconnector drive and at least one circuit breaker drive. The plurality of removable modules are configured to be mounted horizontally within the at least one first compartment at a plurality of horizontal locations. Movement of a removable module from its horizontal location, the movement including a vertical movement, is configured to move the one or more auxiliary components housed in or associated with that module.

Disclosed in the present invention is an electric switching apparatus, comprising a drawer apparatus, an electric connection apparatus, a driving mechanism, and a locking mechanism. A busbar of the breaker body at the separate position is separated from the electric connection apparatus, and the breaker body cannot be switched on. The busbar of the breaker body at the trial position is separated from the electric connection apparatus, and the breaker body can be switched on. The busbar of the breaker body at the connected but not clamped position is in touch with the electric connection apparatus, the electric connection apparatus does not clamp the busbar, and the breaker body cannot be switched on. The busbar of the breaker body at the connected and clamped position is in touch with the electric connection apparatus, the electric connection apparatus clamps the busbar, and the breaker body can be switched on.