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.

A safety device for medium-high voltage system is disclosed and includes a cabinet, a power module and a metal cover plate. The cabinet includes an accommodation seat connected to the medium-voltage charged region and having an opening. The power module is detachably disposed in the accommodation seat through the opening. The metal cover plate is pivotally connected to the accommodation seat and grounded. When the metal cover plate is in the first position, the opening is closed and the medium-voltage charged region is shielded. When the power module is set in the accommodation seat, the metal cover plate is pivotally rotated to a second position, and the power module is electrically connected to the medium-voltage charged region. When the power module is detached from the accommodation seat, the metal cover plate is rotated to the first position, and the opening is closed to shield the medium-voltage charged region.

A motor control center circuit breaker replacement kit includes a standoff having a first plurality of mounting holes corresponding to existing holes on a bucket of the motor control center and a second plurality of holes corresponding to existing holes on a circuit breaker, a door interface panel having a third plurality of holes corresponding to existing holes on a door of the motor control center, the door interface panel having an opening formed therein having a size and shape corresponding to a handle operator associated with the circuit breaker, and a safety latch having a slot structured to receive a tab of the handle operator.

A system and method are provided for coordinating the installation and removal a motor control center subunit with the power connection and interruption thereof. A system of interlocks and indicators causes an operator to install a motor control center subunit into a motor control center, and connect supply and control power thereto, in a particular order. Embodiments of the invention may prevent actuation of line contacts of the bucket, and shield the line contacts, until the bucket is fully installed in the motor control center. Other embodiments also prevent circuit breaker closure until the line contacts are engaged with a bus of the motor control center.

A system and method are provided for coordinating the installation and removal a motor control center subunit with the power connection and interruption thereof. A system of interlocks and indicators causes an operator to install a motor control center subunit into a motor control center, and connect supply and control power thereto, in a particular order. Embodiments of the invention may prevent actuation of line contacts of the bucket, and shield the line contacts, until the bucket is fully installed in the motor control center. Other embodiments also prevent circuit breaker closure until the line contacts are engaged with a bus of the motor control center.

The motor driving device is to be mounted to a control panel, and includes: a motor driving device main body; a radiator disposed to face a rear surface of the motor driving device main body; a fan motor unit being disposed above the radiator and being withdrawable through an area above the motor driving device main body; and a floor sheet member configured to be laid out along a withdrawal route of the fan motor unit in a process of withdrawing the fan motor unit.

The motor driving device is to be mounted to a control panel, and includes: a motor driving device main body; a radiator disposed to face a rear surface of the motor driving device main body; a fan motor unit being disposed above the radiator and being withdrawable through an area above the motor driving device main body; and a floor sheet member configured to be laid out along a withdrawal route of the fan motor unit in a process of withdrawing the fan motor unit.

A drawer comprising a chassis configured for insertion into an opening in a distribution switchboard, a front facade that closes the opening in the distribution switchboard when the drawer is inserted, and downstream connection terminals intended to be connected to a load, wherein the distribution drawer includes a plurality of connectors that open onto its front facade, each of these connectors being connected to a downstream connection terminal and allowing a measurement apparatus to be connected, and the connection drawer including a selector that is actuatable from the front facade and that allows the downstream connection terminals to be connected to and disconnected from an equipotential link.

A drawer comprising a chassis configured for insertion into an opening in a distribution switchboard, a front facade that closes the opening in the distribution switchboard when the drawer is inserted, and downstream connection terminals intended to be connected to a load, wherein the distribution drawer includes a plurality of connectors that open onto its front facade, each of these connectors being connected to a downstream connection terminal and allowing a measurement apparatus to be connected, and the connection drawer including a selector that is actuatable from the front facade and that allows the downstream connection terminals to be connected to and disconnected from an equipotential link.