A power distribution system is provided in this application, which includes a plurality of power distribution equipments, and the plurality of power distribution equipments are configured to supply power to a plurality of powered devices respectively. First power distribution equipment in the plurality of power distribution equipments includes: a first power module, configured to perform voltage conversion on an input voltage to obtain an output voltage, where the output voltage is a supply voltage of the first power distribution equipment; and a first cascading circuit, configured to connect an output of the first power module to an output of a power module in power distribution equipment in the power distribution system other than the first power distribution equipment, where the first power distribution equipment is any power distribution equipment in the power distribution system. A server system which includes the power distribution system is also disclosed in this application.

A power distribution system is provided in this application, which includes a plurality of power distribution equipments, and the plurality of power distribution equipments are configured to supply power to a plurality of powered devices respectively. First power distribution equipment in the plurality of power distribution equipments includes: a first power module, configured to perform voltage conversion on an input voltage to obtain an output voltage, where the output voltage is a supply voltage of the first power distribution equipment; and a first cascading circuit, configured to connect an output of the first power module to an output of a power module in power distribution equipment in the power distribution system other than the first power distribution equipment, where the first power distribution equipment is any power distribution equipment in the power distribution system. A server system which includes the power distribution system is also disclosed in this application.

A power distributor includes a plurality of power outlets and a plurality of power inlet receptors. Each power inlet receptor is configured to supply power to all the power outlets in the plurality of power outlets. Each power outlet has a cover that when in a closed and locked configuration prevents physical access to a power inlet receptor. A physical locking mechanism is configured to lock every cover from the plurality of covers. The physical locking mechanism allows at most one cover from the plurality of covers to be unlocked at a time so that the physical locking mechanism prevents the simultaneous unlocking of more than one cover from the plurality of covers.

A power distributor includes a plurality of power outlets and a plurality of power inlet receptors. Each power inlet receptor is configured to supply power to all the power outlets in the plurality of power outlets. Each power outlet has a cover that when in a closed and locked configuration prevents physical access to a power inlet receptor. A physical locking mechanism is configured to lock every cover from the plurality of covers. The physical locking mechanism allows at most one cover from the plurality of covers to be unlocked at a time so that the physical locking mechanism prevents the simultaneous unlocking of more than one cover from the plurality of covers.

A power distribution box is disclosed. The power distribution box may include a housing including one or more panels. The one or more panels may define a cavity. The power distribution box may include one or more outlets coupled to one or more portions of the one or more panels of the housing. The power distribution box may include one or more output plugs configured to receive one or more power distribution whips. The one or more output plugs may be configured to couple to one or more portions of the one or more panels of the housing. The power distribution box may include one or more circuit breakers coupled to one or more portions of the one or more panels of the housing. The power distribution box may include at least one power whip coupled to an output plug of the one or more output plugs.

A power distribution box is disclosed. The power distribution box may include a housing including one or more panels. The one or more panels may define a cavity. The power distribution box may include one or more outlets coupled to one or more portions of the one or more panels of the housing. The power distribution box may include one or more output plugs configured to receive one or more power distribution whips. The one or more output plugs may be configured to couple to one or more portions of the one or more panels of the housing. The power distribution box may include one or more circuit breakers coupled to one or more portions of the one or more panels of the housing. The power distribution box may include at least one power whip coupled to an output plug of the one or more output plugs.

An electric power substation includes one or more primary relay panels located at a substation site and susceptible to damage caused by radiated or coupled electromagnetic energy, and an electromagnetic pulse mitigation module located at the substation site and comprising a continuous conductive enclosure that is impervious to the radiated or coupled electromagnetic energy. One or more backup relay panels are housed within the electromagnetic pulse mitigation module and capable of assuming operation of the one or more primary relay panels.

An electric power substation includes one or more primary relay panels located at a substation site and susceptible to damage caused by radiated or coupled electromagnetic energy, and an electromagnetic pulse mitigation module located at the substation site and comprising a continuous conductive enclosure that is impervious to the radiated or coupled electromagnetic energy. One or more backup relay panels are housed within the electromagnetic pulse mitigation module and capable of assuming operation of the one or more primary relay panels.

A high voltage electric switchboard in which manufacturing productivity is greatly improved and each functional part can be easily replaced and repaired is provided. In the high voltage electric switchboard, a plurality of functional parts including a bus bar part, a measurement and supervisory controller, a circuit breaker part, a wire part, and potential transformer part are independently modularized such that the functional parts do not have a shared surface with each other and at least two outer surfaces of an enclosure of each of the modularized functional parts are installed to be in contact with an outer surface of an enclosure of another functional part adjacent in a horizontal direction or a vertical direction.

Circuit breakers with a housing with a line side and a load side and an electronically controlled lock-out lock member coupled to the housing configured to electronically controllably travel between a first position and a second position. In the second position, the lock member is in a lock-out position and prevents the handle from moving to an ON position associated with electrical current conduction and in the first position the lock member is translated to a position that allows the handle to move to the ON position.