Abstract: Systems and methods for providing an electronic cooling apparatus comprising a chassis having an internal space that is sized/shaped to receive/structurally support circuit card(s). The internal space defined by sidewalls with a channel formed therein in which a coolant is disposed. The coolant is in thermal communication with the circuit card(s) via the sidewall(s) when the circuit card(s) is(are) disposed in the chassis. A refrigerant-based cooling system is disposed in the chassis and comprises an evaporator having inlet/outlet ports coupled to the channel of the chassis to define a first closed-loop channel for the coolant within the chassis. The evaporator facilitates heat transfer from the coolant to a refrigerant flowing through a second closed-loop channel of the chassis at least partially defined by the evaporator. A pump is disposed in the chassis and configured to cause the coolant to flow through the first closed-loop channel.

Abstract: A locking device includes: a housing intended to be mounted on an electrical switchboard between a first switching apparatus and a second switching apparatus, each of the switching apparatuses having a control lever able to move between a lower position, corresponding to an open state, and an upper position, corresponding to a closed state, a locking member able to move in rotation between: a first locking position, in which the locking member blocks the control lever of the first switching apparatus in the open position, and a second locking position, in which the locking member blocks the control lever of the second switching apparatus in the open position.

Abstract: A gas insulated apparatus includes: a grounded metal tank in which an insulating gas is enclosed; a conductor disposed in the tank, voltage being applied to the conductor; and a non-linear resistance layer disposed on at least part of an inner surface of the tank and made from an insulating material containing a particle of a non-linear resistance material, the non-linear resistance material being conductive when voltage higher than or equal to a threshold is applied. The non-linear resistance layer has a thickness that is larger than a sum of a thickness of a conductive portion and a particle diameter of the non-linear resistance material, the conductive portion being a portion of the non-linear resistance layer that is conductive when voltage higher than or equal to the threshold is applied to a metal foreign object on the non-linear resistance layer.

Abstract: 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.

Abstract: Methods, systems, and apparatuses are described for transferring power. A power transfer device may be configured to securely fit in a fuse block, fuse holder, and/or the like. The power transfer device may transfer power from a source to a load connected to the fuse block, fuse holder, and/or the like, while also isolating the power to prevent the power from backfeeding to the source. The power transfer device may be used to perform testing, measurements, and/or analysis (e.g., voltage measurements, power measurements, frequency analysis, system impedance testing, etc.).

Abstract: A switchgear device may include a frame defining an interior compartment, an electrical breaker component carried within the interior compartment, and a first optical sensor carried within the interior compartment. The switchgear device may include a grounding device coupled to the electrical breaker component and being within the interior compartment. The grounding device may include an axle extending between the interior compartment and an exterior of the frame, a linkage coupled to the axle, and a grounding switch coupled to the linkage and switching between a first open state and a second closed state. The switchgear device may include a controller coupled to the electrical breaker component, the first optical sensor, and the grounding device and configured to cause the grounding switch to switch to the second closed state based upon the first optical sensor.

Abstract: A circuit breaker includes a frame defining a housing having an interior compartment and a circuit interrupter. An actuator is connected to the circuit interrupter and configured to actuate the circuit interrupter into closed and open breaker positions. An indicator is connected to the actuator and movable between first and second positions corresponding to the respective closed and open breaker positions. A first indicator surface has first indicia indicative that the circuit interrupter is in the closed breaker position and a second indicator surface having second indicia indicative that the circuit interrupter is in the open breaker position. An opening is formed on the housing and aligned with the indicator to expose for view the respective first or second indicia when the circuit interrupter is in the respective closed or open breaker position.

Abstract: An electrical connection enclosure comprises at least one electricity source connected to an associated electrical load and comprising a base, a frontal portion, a cover and functional elements attached to the base. All the electricity sources have a base of constant height and a frontal portion and a cover whose heights are adapted to the dimensions of the functional elements. The electrical enclosure comprises at least one external connection module (706) associated to one of the electricity sources and selected from a set of external connection modules. Each external connection module comprises a first end (709) of height equal to the height of the bases and comprising input connectors (710) connected to the electricity source, and a second end (711) of height equal to one, two or three times the height of the bases and less than or equal to the height of the associated electricity sources and comprising output connectors (712) connected to the electrical load.

Abstract: A bus bar includes a load terminal connector comprising a conductive plate that extends from a first edge to an opposite second edge and extends from a third edge to an opposite fourth edge. The third and fourth edges extend from the first edge to the second edge. The plate includes a window opening located between the first and second edges and between the third and fourth edges. The plate also includes a slot extending into the plate from the first edge to the window opening. The plate includes first and second sets of openings configured to receive connections with first and second power terminals of switch packages. The first set of openings and the second set of openings are located on opposite sides of the slot.

Abstract: The present disclosure provides an identifier-coding system for use in disaster recovery. The system allows a user to track the use of different single-phase power circuits from a centrally located, three-phase generator to one or more remote worksites, including by visual identification of each downstream ground fault circuit interrupter (GFCI) outlet. The present system also provides tracking from a three-phase distribution panel to the remote power outlet modules to simplify fault correction if an overload or short circuit were to occur.

Abstract: An insulator for a gas-insulated device is provided, including an injection-molded insulator disc and a conductor, wherein the insulator disc includes a first circumferential surface, a second circumferential surface disposed radially outwards from the first circumferential surface, and a web portion connecting the first circumferential surface and the second circumferential surface, characterized in that the web portion includes a wave structure, the web portion having an inner wave profile at the first circumferential surface and an outer wave profile at the second circumferential surface, and the inner wave profile and the outer wave profile have a radius of curvature of 2 mm or more and 10,000 mm or less.

Abstract: 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.

Abstract: A carrier-rail bus assembly including a number of n mechanically contiguous bus-circuit-plate sections electrically connected via bus-circuit paths and installed in a carrier rail, an electronic control unit being configured such that it detects whether an apparatus is inserted in an installation position i, respective installation position i being allotted a bus address, which is assigned to the apparatus inserted on the carrier rail on the respective bus-circuit-plate section in respective installation position i. A related method for assigning a bus address is also disclosed.

Abstract: A switchboard is provided having a rotating shutter structure that comprises: a switchboard body that is provided with a circuit breaker chamber into which a circuit breaker is inserted, and an open hole formed in the rear surface to expose a conductor part of a bushing assembly to the circuit breaker chamber; a shutter part that is rotatably installed in the switchboard body and opens/closes the open hole by rotating; and an operation unit that is installed in the switchboard body and rotates the shutter part when the circuit breaker is inserted into the circuit breaker chamber.

Abstract: A system for cooling a plurality of processors in a data center is disclosed. The cooling system includes a refrigeration system having a compressor for compressing a carbon dioxide (CO2) working fluid, an air cooled heat exchanger downstream from the compressor and located out-of-doors for cooling the working fluid, an expansion device downstream from the heat exchanger, a cooling device located within the data center in which the working fluid is expanded to cool the processors by circulating the cooled air around the processors, and a return line for the return of the working fluid from the cooling device to the compressor.

Abstract: Wireless electronic devices include one or more wireless antennas to provide for wireless communications. The antenna cables are routed internally within the device and typically noise from components located on a circuit board may couple to the antenna cables and cause a degradation in wireless performance, impact antenna sensitivity and cause packet loss. Utilizing raised pathways in a heat sink utilized for thermal transfer of heat to a housing enables tunnels to be formed between the housing and the heat sink. Routing the antenna cables through the tunnels improves noise isolation for the antenna cables while still maintaining the heat transfer. The raised pathways are configured to not interfere with components on the circuit board or components included in the housing. The wireless antennas may be mounted within the housing instead of on the board so no portion of the antenna cables are located on the circuit board.

Abstract: A panelboard assembly for a harsh and/or hazardous environment is provided. The panelboard assembly includes a main breaker assembly, a first subpanel assembly, and a second subpanel assembly. The first subpanel assembly includes a first contactor assembly, and a first branch breaker assembly electrically connected to the first contactor assembly and configured to be electrically connected to a first group of loads. The first contactor assembly is configured to switch the first group of loads on and off all at once. The second subpanel assembly is electrically connected in parallel to the first subpanel assembly, and includes a second contactor assembly and a second branch breaker assembly electrically connected to the second contactor assembly and configured to be electrically connected to a second group of loads. The second contactor assembly is configured to switch the second group of loads on and off all at once.

Abstract: A solid state drive (SSD) apparatus includes a case including an air tunnel disposed between an inner plate and an upper wall and an accommodation space between the inner plate and a lower wall. The air tunnel extends in a first direction, and both end parts of the air tunnel are exposed to the outside. A substrate is disposed in the accommodation space. At least one semiconductor chip is disposed on the substrate.

Abstract: A tower mounted high voltage gas-insulated switchgear including a supporting structure connected to the lattice structure of a high voltage transmission tower, a first and a second combined interruption and disconnection modules respectively including for each phase, a first and a second combined interruption and disconnection units, a first combined disconnecting and earthing switch having a first fixed contact operatively coupled to said first terminal, a second fixed contact at ground potential and a first movable contact operatively couplable to said first and second fixed contacts for disconnecting and earthing operations; a fast earthing switch interposed between said first fixed contact and said first terminal, a circuit breaker unit electrically connected to said first movable contact of said first combined disconnecting and earthing switch and to a second combined disconnecting and earthing switch.

Abstract: A thermal management system for cooling electronic devices includes an immersion cooling system, a vapor buffer tank, and a liquid buffer tank. The immersion cooling system includes an immersion tank defining an immersion chamber, a working fluid in the immersion chamber, and a condenser. A liquid portion of the working fluid defines an immersion bath in the immersion chamber and a vapor portion defines a headspace above the immersion bath in the immersion chamber. The condenser condenses the vapor portion of the working fluid to the liquid portion of the working fluid. The vapor buffer tank is in fluid communication with the headspace, and a vapor valve selectively allows fluid communication between the vapor buffer tank and the headspace. The liquid buffer tank is in fluid communication with the immersion chamber, and a liquid valve selectively allows fluid communication between the liquid buffer tank and the immersion chamber.