Abstract: A switch apparatus comprising two interrupters, such as a busbar disconnector and a grounding disconnector. Common actuator means are provided for the movable contacts of the interrupters, for permitting one of the interrupters to be opened while holding the other interrupter closed, and vice versa, which enables the strokes performed by the movable contacts to be crossed.

Abstract: Provided is a silicon-based blue phosphorescent material having a longer luminescence lifetime, a high luminescence intensity, and excellent long-term stability and reproducibility. A method for producing a silicon-based blue-green phosphorescent material controllable by an excitation wavelength, which comprises a first step of anodizing the surface of silicon to prepare a nanocrystal silicon or a nanostructure silicon, a second step of processing the nanocrystal silicon or the nanostructure silicon prepared in the first step for rapid thermal oxidation, and a third step of processing the nanocrystal silicon or nanostructure silicon having been processed for rapid thermal oxidation in the second step, for high-pressure water vapor annealing.

Abstract: In a state where a silicon base material (1) is used as an anode, a fine platinum member (2) is used as a cathode, and an electrolyte solution (4) is arranged between the anode and the cathode, anodic oxidation is performed in constant current mode under the conditions where porous formation mode and electrolytic polishing mode coexist. The platinum member (2) is fitted in the silicon base material (1) with silicon elution, and processes such as hole making, cutting, single-side pressing are performed. Since the silicon base material can be processed at a room temperature with small energy, the crystal quality of the processing surface is not deteriorated. Thus, efficient and highly accurate processing can be performed without using a mechanical method, which consumes much material in conventional processes such as cutting of solar cell silicon base material, and without using laser whose energy unit cost is high, and furthermore, without leaving a crystal damage on a processed surface.

Abstract: A switch apparatus comprising two interrupters, such as a busbar disconnector and a grounding disconnector. Common actuator means are provided for the movable contacts of the interrupters, for permitting one of the interrupters to be opened while holding the other interrupter closed, and vice versa, which enables the strokes performed by the movable contacts to be crossed.

Abstract: The gas-insulated multi-phase line is made up of sections, each of which is formed by metal cladding filled with a dielectric gas under pressure and containing at least three phase conductors disposed in a triangle configuration. Two adjacent sections are connected together via a connection module whose metal cladding is locally made up of a plurality of tubular portions, each of which is filled with dielectric gas and has a single phase conductor passing through it, constituting a passive electrical connection.

Abstract: The gas-insulated multi-phase line is made up of sections, each of which is formed by metal cladding filled with a dielectric gas under pressure and containing at least three phase conductors disposed in a triangle configuration. Two adjacent sections are connected together via a connection module whose metal cladding is locally made up of a plurality of tubular portions, each of which is filled with dielectric gas and has a single phase conductor passing through it, constituting a passive electrical connection.

Abstract: A drive mechanism for driving a rotary signalling switch of a high voltage electrical apparatus, in particular a disconnector or a grounding switch, the mechanism connecting the rotary shaft of the signalling switch to a rotary actuator shaft of an actuator mechanism for actuating the contacts of the apparatus so that the contacts of the signalling switch are opened or closed when the contacts of the apparatus are opened or closed, the actuator shaft being displaced at an angular velocity .omega..sub.ht during an operation to open or close the contacts of the apparatus. The drive mechanism constitutes a positive action mechanism connected between said drive shaft and said rotary shaft, and includes drive device for driving the rotary shaft of the signalling switch at the beginning and at the end of an operation at a velocity .omega..sub.cs greater than .omega..sub.ht.