A tool has a pneumatic motor driving unit, an electric control unit, a stationary portion, a movable portion, a loading portion for clamping a connecting rod, a first heating portion, and a second heating portion. The movable portion is movably connected to a first and second stationary shaft of the stationary portion, the movable portion is connected to a movable shaft by a screw pair, the movable shaft is fixedly connected to the pneumatic motor driving unit of the stationary portion, the movable shaft is driven to rotate around its axis by the pneumatic motor driving unit, the loading portion movably connects to the second stationary shaft of the stationary portion and slides between a stationary portion body and a movable portion body, the loading portion rotates around the second stationary shaft.

An electrical system includes a power electronics system and a bus bar coupled to the power electronic system. The power electronics system includes a switching device configured to selectively connect and disconnect. The bus bar includes a first conductive layer and a second conductive layer. The first conductive layer is disposed directly adjacent a first insulation layer, wherein the first conductive layer is configured to conduct a first polarity of electrical power to, from, or both the power electronics system. The second conductive layer is disposed directly adjacent the first insulation layer, and is configured to conduct a second polarity of electrical power opposite the first polarity to, from, or both the power electronics system. The first conductive layer comprises a first thickness half a second thickness of the second conductive layer.

A bus assembly includes a planar first bus, a second bus including a first planar bus section on the first bus and a second planar bus section connected to the first planar bus section and offset from the first planar bus section, and a third bus comprising a third planar bus section disposed between the first bus and the second planar bus section, and a fourth planar bus section connected to the third planar bus section, offset from third planar bus section, and disposed on the first planar bus section.

Provided is a coupling structure of a bus bar equipped in a power part. The coupling structure of the bus bar includes a female type bus bar and a male type bus bar respectively coupled to different elements of the power part, wherein the female type bus bar is fitting-coupled to the male type bus bar. In the coupling structure of the bus bar, since bus bars of high voltage elements are connected to each other by a connecting method instead of a conventional bolting coupling structure, the miniaturization effect and cooling effect of an inverter may increase, and moreover, a tool used to couple bus bars may be omitted, thereby enabling power parts to be easily disposed.

An electrical system includes a power electronics system and a bus bar coupled to the power electronic system. The power electronics system includes a switching device configured to selectively connect and disconnect. The bus bar includes a first conductive layer and a second conductive layer. The first conductive layer is disposed directly adjacent a first insulation layer, wherein the first conductive layer is configured to conduct a first polarity of electrical power to, from, or both the power electronics system. The second conductive layer is disposed directly adjacent the first insulation layer, and is configured to conduct a second polarity of electrical power opposite the first polarity to, from, or both the power electronics system. The first conductive layer comprises a first thickness half a second thickness of the second conductive layer.

An expandable bused elbow is provided for connecting modular metering equipment around an inside corner. The expandable bused elbow comprises an enclosure configured to fit in a gap between modular equipment. The enclosure has a box assembly with a sliding mechanism that enables expansion of the box assembly. The expandable bused elbow further comprises a first bussed interior assembly enclosed within the enclosure having a first bottom end and a second bussed interior assembly enclosed within the enclosure having a second bottom end. The first bussed interior assembly has a first bussing expansion mechanism that enables expansion of the first bussed interior assembly. The second bussed interior assembly has a second bussing expansion mechanism that enables expansion of the second bussed interior assembly. The expandable bused elbow further comprises a center corner assembly disposed in a middle space between the first bussed interior assembly and the second bussed interior assembly.

A busway assembly includes first and second busway sections and a joint assembly connecting the first and second sections. Each busway section includes a housing including first and second opposing side portions. Each busway section includes a first insulator held in the first side portion and a second insulator held in the second side portion. The first and second insulators each hold one or more bus bar conductors. The joint assembly includes first and second connected joint housings and plurality of joint conductors held in the first and second housings. A first exposed portion of each joint conductor extends out of the first housing and is electrically connected with one of the bus bar conductors of the first busway section. A second exposed portion of each joint conductor extends out of the second housing and is electrically connected with one of the bus bar conductors of the second busway section.

A bridge joint cover assembly for a busway bridge joint, the assembly comprising a bridge joint cover plate having a cover plate hole, a viewing plate fixed to the cover plate, over the cover plate hole, and the viewing plate including infrared (IR) material. The IR material is further aligned with the cover plate hole in the bridge joint cover plate.

A method for manufacturing a pipe type busbar includes: preparing a first tubular member made of a first material having a hollow formed therein; preparing a second tubular member having a hollow formed therein and made of a second material different from the first material; plating the first tubular member with a third material; and bonding one surface of the first tubular member and one surface of the second tubular member.

A tool has a pneumatic motor driving unit, an electric control unit, a stationary portion, a movable portion, a loading portion for clamping a connecting rod, a first heating portion, and a second heating portion. The movable portion is movably connected to a first and second stationary shaft of the stationary portion, the movable portion is connected to a movable shaft by a screw pair, the movable shaft is fixedly connected to the pneumatic motor driving unit of the stationary portion, the movable shaft is driven to rotate around its axis by the pneumatic motor driving unit, the loading portion movably connects to the second stationary shaft of the stationary portion and slides between a stationary portion body and a movable portion body, the loading portion rotates around the second stationary shaft.