Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Fuel Cells

On-load-tap-changer

Membrane switch construction and method for making same

The present invention relates to membrane switches and in particular to a structure which provides ...

Coil inserter

The foregoing and the other objects of the present invention have been attained by providing a ...

Electrode for storage battery and method for producing the same

Accordingly, it is an object of the present invention to provide all improvement in a coated-type ...

Lightweight current collectors and carriers

It has now been found that the use of a lightweight expanded metallized plastic film or perforated ...

Methods for coating current collector with polymeric adhesives

This invention is based, in part, on the recognition that formation of a layer of electrically ...

Positive active material for rechargeable lithium battery and method of preparing same

It is an object of the present invention to provide a positive active material for a rechargeable ...

Process of making a capacitor element for a solid electrolytic capacitor

It is, therefore, an object of the present invention is to provide a process for making a capacitor ...

Phase shifting mask and method of manufacturing the same

It is an object to provide the phase shifting mask which facilitates an adjustment of the line ...

Phase shifiting mask and method of manufacturing the same

Accordingly, the present invention is directed to a phase shifting mask and a method of ...

Phase-shifting mask and a manufacturing method thereof

The present invention is devised to solve the above-described problems. Accordingly, it is an ...

On-load tap changer

Details

Inventors: Itoh, Katsuaki;
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:

An on-load tap changer which comprises a rotary selector switch including a plurality of contacts which are divided according to phases into groups which are arranged in the axial direction of the tap changer, a rotary change-over switch including a plurality of contacts, and an intermittent drive mechanism connected between the selector switch and the change-over switch for intermittently transmitting the rotary motion of the selector switch to the change-over switch, the intermittent drive mechanism having an asymmetrical shape which provides a closest portion that is closest to the contacts of the change-over switch. The arrangement is such that the contacts of the change-over switch are divided into groups according to phases which are arranged in the circumferential direction of the change-over switch, the intermittent drive mechanism is at an electrical potential equal to that of the contacts of the selector switch closest to the intermittent drive mechanism, and the closest portion of the intermittent drive mechanism is positioned within a phase region within which the closest portion is positioned.

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide an on-load tap changer that is compact in size.
Another object of the present invention is to provide an on-load tap changer that is simple and reliable.
With the above objects in view, the present invention contemplates to provide an on-load tap changer which comprises a rotary selector switch including a plurality of contacts which are divided according to phases into groups which are arranged in the axial direction of the tap changer, a rotary change-over swtich including a plurality of contacts, and an intermittent drive mechanism connected between the selector switch and the change-over switch for intermittently transmitting the rotary motion of the selector switch to the change-over switch, the intermittent drive mechanism having an asymmetrical shape such that it has a portion that is closer to the contacts of the change-over switch than its other portions.
The arrangement is such that the contacts of the change-over switch are divided into groups according to phases which are arranged in the circumferential direction of the change-over switch, the intermittent drive mechanism is at an electrical potential equal to that of the contacts of the selector switch closest to the intermittent drive mechanism, and the closest portion of the intermittent drive mechanism is positioned within the phase region corresponding to the phase of the selector switch contacts which are closest to the intermittent drive mechanism.

Related patents

	Conjugated polymer as substrate for the plating of alkali metal in a nonaqueous secondary battery What is claimed is: 1. A battery comprising: (a) an anode comprising a porous conjugated backbone polymer substrate, wherein said conjugated backbone polymer is reduced (...
	Layer for stabilization of lithium anode OF THE PREFERRED EMBODIMENTS As shown in the FIGURE, an electrochemical cell or battery 10 has a negative electrode side 12, a positive electrode side 14, and a ...
	Process and apparatus for producing fuel gas OF THE INVENTION The gasification operation in the gasification apparatus is regulated according to the invention by recording the temperature profile over the height ...
	Multi-layer electrode membrane-assembly and electrolysis process using same What is claimed as new and desired to be secured by U.S. Letters Patent is: 1. A process for generating caustic which comprises electrolyzing a solution between a pair ...
	Pulsed field gel electrophoresis of large DNA In FIG. 1, there is shown a diagrammatic view illustrating the separation of very large DNA with pulsed electrophoresis. In section 41 of FIG. 1, a straight length of a ...
	Process for producing graphite electrodes Accordingly, the present invention provides a process for producing a graphite electrode which includes forming a deposition layer of fine globular graphite particles on ...
	Negative electrode for non-aqueous electrolyte secondary battery OF THIS INVENTION In selecting a suitable binder which forms an important element of this invention, experiments were conducted repeatedly about numerous combinations ...
	High dielectric constant coatings OF THE INVENTION The present invention is based on the discovery that coatings having a high dielectric constant can be formed from compositions comprising hydrogen ...
	Method and apparatus for the assembly of semiconductor devices What is claimed is: 1. Apparatus for use in the assembly of semiconductor devices, wherein a flexible film-supported interconnect pattern is bonded to a lead frame, ...
	Packaging and assembly of sheet metal parts I claim: 1. A continuous strip containing a plurality of first switch parts and a plurality of second switch parts, said first and second switch parts being intended for ...

0.014
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved