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.

A gas insulated bus is provided which comprises a metallic container whose axis is an axis line; a main circuit conductor housed in the metallic container; a metallic container to be connected with an end of the metallic container and whose axis is an axis line crossing the axis line; a main circuit conductor housed in the metallic container; an insulating spacer of a single-leg structure that supports and insulates a connection portion of the main circuit conductors; a metal-made shield attached to the insulating spacer and provided with an opening open in a direction of the axis line and an opening open in a direction of the axis line, the shield covering the connection portion, the shield being substantially in a barrel or spindle shape having an outside diameter exceeding that of the main circuit conductors.

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 electric device has an hydraulic motor driving unit, an electric control unit, a stationary portion removably connecting to a first busbar, a movable portion removably connecting to a second busbar, and a loading portion for clamping connecting rods. 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 portion is fixedly connected to the hydraulic motor driving unit, the movable shaft is driven to rotate around its axis by the hydraulic motor driving unit, the loading portion is movably connected to the second stationary shaft and slides between a body of the stationary portion and a body of the movable portion, the loading portion rotates around the second stationary shaft.

A gas-insulated electric apparatus includes: a sealed container made of metal; a high-voltage conductor, housed within the sealed container, that receives voltage; an insulating support member that insulates the high-voltage conductor from the sealed container and support the high-voltage conductor to the sealed container; and a nonlinear-resistance film covering at least a portion of an inner surface of the sealed container, the portion being on a lower side of the inner surface with respect to the high-voltage conductor. The nonlinear-resistance film is formed by particles of a nonlinear-resistance material and an insulating material, and the particles of the nonlinear-resistance material are dispersed in the insulating material. The particles of the nonlinear-resistance material are placed in the insulating material such that one or more of the particles of the nonlinear-resistance material is in constant contact with a conductive foreign object trapped inside the sealed container.

The invention relates to a mould for moulding a component with one or more inserts, the mould comprising a mould body for defining in part the shape of the component, and at least one insert holder for holding an insert within the mould body. Each insert holder is movably supported such it can move relative to the mould body in a direction of shrinkage of the component, and wherein the mould further comprises a biasing means to bias each insert holder to a first position relative to the mould body. The invention also relates to a method of moulding.

The invention relates to an electric device, especially to a power busbar connection tool, said tool comprises an electric motor drive unit, an electric control unit, a stationary portion removably connects to a busbar, a movable portion removably connects to a busbar and a loading portion for clamping connecting rods. Said movable portion is movably connected to a first and second stationary shaft of said stationary portion, said movable portion is connected to a movable shaft by a screw pair, said movable portion is fixedly connected to said electric motor drive unit, said movable shaft is driven to rotate around its axis by said electric motor drive unit, said loading portion is movably connected to said second stationary shaft and slides between a body of said stationary portion and a body of said movable portion, said loading portion rotates around said second stationary shaft. It is achieved that a plurality of connecting rods are simultaneously mounted to busbars and that two busbars are connected in a form of butt-and-butt connecting.

A busbar assembly contains: an electrical busbar having two end faces, a bottom surface, a top surface, and two side faces connecting the bottom surface and the top surface, and a metallic busbar heatsink having a bottom wall and at least two cooling fins extending from the bottom wall. The cooling fins together with the bottom wall forming a receiving space for receiving the busbar and the busbar is arranged in the receiving space in such a manner that at least one of the two side faces of the busbar is in planar contact with one of the cooling fins.

The invention relates to an electric device, especially to a tool used for connecting busbars driven by an hydraulic motor driving unit, said tool comprises an hydraulic motor driving unit and an electric control unit, said tool further comprises a stationary portion removably connects to a first busbar, a movable portion removably connects to a second busbar and a loading portion for clamping connecting rods. Said movable portion is movably connected to a first and second stationary shaft of said stationary portion, said movable portion is connected to a movable shaft by a screw pair, said movable portion is fixedly connected to said hydraulic motor driving unit, said movable shaft is driven to rotate around its axis by said hydraulic motor driving unit, said loading portion is movably connected to said second stationary shaft and slides between a body of said stationary portion and a body of said movable portion, said loading portion rotates around said second stationary shaft. It is achieved that a plurality of connecting rods are simultaneously mounted to busbars and that two busbars are connected in a form of butt-and-butt connecting.

The invention relates to an electric device, especially to a tool used for connecting busbars, said tool comprises an electric motor driving unit and an electric control unit; said tool further comprises a stationary portion removably connects to a busbar, a movable portion removably connects to a busbar and a loading portion for clamping connecting rods. Said movable portion is movably connected to a first and second stationary shaft of said stationary portion, said movable portion is connected to a movable shaft by a screw pair, said movable portion is fixedly connected to said electric motor driving unit, said movable shaft is driven to rotate around its axis by said electric motor driving unit, said loading portion is movably connected to said second stationary shaft and slides between a body of said stationary portion and a body of said movable portion, said loading portion rotates around said second stationary shaft. It is achieved that a plurality of connecting rods are simultaneously mounted to busbars and that two busbars are connected in a form of butt-and-butt connecting.