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.

An electrical connection for medium and high voltage switchgears includes an electrical terminal of a switchgear. An electrical contacting surface of the electrical terminal as first current carrying part is electrically connected with a contacting surface of an external electrical connector part as second current carrying part via a connecting system. The connecting system includes a stretch-bolt function, which is integrated in one of the current carrying parts. The stretch bolt function is provided with a male screw thread at the extending end, which is configured to be screwed into a female threaded hole of the second current carrying part.

A panel for accommodating a draw-out device, such as a vacuum circuit breaker or metering device, includes: a housing with an access opening for accommodating a draw-out device and with primary plugs and secondary plugs connectable to the draw-out device; a traveling system arranged in the housing and for positioning the draw-out device within the housing in a connected position, a service position, and a disconnected position; a door arranged on the housing and movable between a closed position to close the access opening and an open position for provide access to the housing; a primary blocking element for blocking movement of the traveling system from the disconnected position to the service position with the door in the open position or between the open position and the closed position; and a secondary blocking element for blocking the door to move into the closed position with the draw-out device being disconnected.

A panel for accommodating a draw-out device, such as a vacuum circuit breaker or metering device, includes: a housing with an access opening for accommodating a draw-out device and with primary plugs and secondary plugs connectable to the draw-out device; a traveling system arranged in the housing and for positioning the draw-out device within the housing in a connected position, a service position, and a disconnected position; a door arranged on the housing and movable between a closed position to close the access opening and an open position for provide access to the housing; a primary blocking element for blocking movement of the traveling system from the disconnected position to the service position with the door in the open position or between the open position and the closed position; and a secondary blocking element for blocking the door to move into the closed position with the draw-out device being disconnected.

An indoor switchgear or controlgear arrangement with unmanned operation and maintenance, for use in low, medium, or high voltage, includes: an arrangement of switching devices in an inner housing, which is furthermore provided with an outer housing; and a robot system, acting mainly in the inner housing. At least the switching devices other than maintenance critical parts are withdrawable. The switchgear or controlgear is provided with interlocks in order to prevent a wrong sequence of operation and prevent access to potentially hazardeous compartments. Metallic segregation is provided internally in the inner housing in order to achieve a needed service continuty level.

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.

Methods of operating a robotic breaker-racking apparatus are provided. A method of operating a robotic breaker-racking apparatus includes controlling a motor to drive the robotic breaker-racking apparatus to a first circuit breaker. The method includes accessing the first circuit breaker via remote or autonomous control of the robotic breaker-racking apparatus. Moreover, the method includes visually inspecting, via a camera of the robotic breaker-racking apparatus, a first relay of the first circuit breaker and/or a second relay of a second circuit breaker. Related robotic breaker-racking apparatuses are also provided.

Methods of operating a robotic breaker-racking apparatus are provided. A method of operating a robotic breaker-racking apparatus includes controlling a motor to drive the robotic breaker-racking apparatus to a first circuit breaker. The method includes accessing the first circuit breaker via remote or autonomous control of the robotic breaker-racking apparatus. Moreover, the method includes visually inspecting, via a camera of the robotic breaker-racking apparatus, a first relay of the first circuit breaker and/or a second relay of a second circuit breaker. Related robotic breaker-racking apparatuses are also provided.

Modular switchgear systems are provided including at least two separate modules including components of switchgear. The at least two separate modules are independent of one another. One of the at least two separate modules is a stationary module and remaining ones of the at least two separate modules are removable such that the remaining ones of the at least two separate modules are configured to engage and/or disengage easily from the stationary module and an electrical power system. Related removable modules are also provided.