The invention relates to a switch cabinet having a housing and a door which is pivotally secured thereto via at least one hinge and has a door leaf, wherein the door leaf has an aperture and a closing element which closes the aperture and is held in a closed position, counter to its mechanical pretension in the direction of its open position, by an electrically controllable locking element.

The invention relates to a switch cabinet having a housing and a door which is pivotally secured thereto via at least one hinge and has a door leaf, wherein the door leaf has an aperture and a closing element which closes the aperture and is held in a closed position, counter to its mechanical pretension in the direction of its open position, by an electrically controllable locking element.

A method of connecting electrical substation wiring in an electrical substation provides pre-bundled yard cables configured to connect between field devices in the substation and a yard interface connection cabinet. The yard interface connection cabinet has an outside plug bulkhead plate that is accessible from outside of a control house that houses the yard interface connection cabinet. The outside plug bulkhead plate has a plurality of connectors configured to mate with the yard cables. The yard interface connection cabinet further has internal wires extending from an inside plug bulkhead plate and terminating at a terminal block. The connections and wires in the yard interface connection cabinet are tested with the yard cables before installation of the yard interface connection cabinet and yard cables in the substation. The yard cables are connected between the field devices and the outside plug bulkhead plate from outside of the control house.

A method of connecting electrical substation wiring in an electrical substation provides pre-bundled yard cables configured to connect between field devices in the substation and a yard interface connection cabinet. The yard interface connection cabinet has an outside plug bulkhead plate that is accessible from outside of a control house that houses the yard interface connection cabinet. The outside plug bulkhead plate has a plurality of connectors configured to mate with the yard cables. The yard interface connection cabinet further has internal wires extending from an inside plug bulkhead plate and terminating at a terminal block. The connections and wires in the yard interface connection cabinet are tested with the yard cables before installation of the yard interface connection cabinet and yard cables in the substation. The yard cables are connected between the field devices and the outside plug bulkhead plate from outside of the control house.

An interlock system for an enclosure can include a power switch movable between an OFF position and an ON position with a defeater arm coupled to the power switch. The defeater arm can be selectively movable between a locked position and an unlocked position and when the defeater arm is in the locked position the power switch is prevented from moving from the OFF position to the ON position. An interlock can include a pivot bracket pivotally supported by a support bracket within the interior of the enclosure and movable between a first orientation, in which the pivot bracket is out of engagement with the defeater arm, and a second orientation, in which the pivot bracket displaces the defeater arm into the unlocked position. When the door is moved into a closed position from an open position, a door bracket displaces the pivot bracket into the second orientation.

The present disclosure relates to a distribution board ventilation system including a circulation chamber serving as a passage for air circulation and arc discharge; a first compartment provided at one surface of the circulation chamber; a second compartment which is adjacent to the first compartment and provided at the other surface adjacent to the one surface of the circulation chamber; a first discharge door mounted on the one surface of the circulation chamber to open the first compartment; a second discharge door mounted on the other surface of the circulation chamber to open the second compartment; and a linking means which is mounted between the first discharge door and the second discharge door and ensures that the open states of the first discharge door and the second discharge door are mutually exclusive.

An Enhanced Energy Reducing Maintenance Setting (EERMS) device is disclosed. The EERMS device includes an EERMS switch having a normal/OFF mode and a maintenance/ON mode, a IED protection relay operatively connected to the EERMS switch and configured to activate maintenance mode by receiving an IED input when the EERMS switch is switched to maintenance/ON mode, a key-solenoid lock device configured to trap a key of an EERMS panel, wherein the key-solenoid lock cylinder is energized to release the trapped key by closing of IED output NO dry auxiliary contacts, and a circuit breaker panel door comprising a circuit breaker lock cylinder mechanism interlocked with the EERMS switch. The circuit breaker lock cylinder mechanism receives and subsequently re-traps the key released by the key-solenoid lock cylinder from the EERMS panel. The circuit breaker lock cylinder mechanism is interlocked with the EERMS switch by being operatively connected to the key-solenoid lock device.

An Enhanced Energy Reducing Maintenance Setting (EERMS) device is disclosed. The EERMS device includes an EERMS switch having a normal/OFF mode and a maintenance/ON mode, a IED protection relay operatively connected to the EERMS switch and configured to activate maintenance mode by receiving an IED input when the EERMS switch is switched to maintenance/ON mode, a key-solenoid lock device configured to trap a key of an EERMS panel, wherein the key-solenoid lock cylinder is energized to release the trapped key by closing of IED output NO dry auxiliary contacts, and a circuit breaker panel door comprising a circuit breaker lock cylinder mechanism interlocked with the EERMS switch. The circuit breaker lock cylinder mechanism receives and subsequently re-traps the key released by the key-solenoid lock cylinder from the EERMS panel. The circuit breaker lock cylinder mechanism is interlocked with the EERMS switch by being operatively connected to the key-solenoid lock device.

A cabinet including a door, a fastener, and a latch bracket is provided. The fastener is extending at least partially through an aperture in the door. The latch bracket is located on an internal surface of a door frame to secure the door to the door frame. A retainer washer is disposed around the fastener and disposed between the latch bracket and the door in order to retain the fastener when in a disengaged position.

A cabinet including a door, a fastener, and a latch bracket is provided. The fastener is extending at least partially through an aperture in the door. The latch bracket is located on an internal surface of a door frame to secure the door to the door frame. A retainer washer is disposed around the fastener and disposed between the latch bracket and the door in order to retain the fastener when in a disengaged position.