Abstract:
This invention makes reference to interrupter high voltage air-insulated telescopic disconnection switch with moving contact for supplying pressure, consisting of: a first male conductor comprising a first guide-positioner means internally coupled with such first male conductor via an intermediate section, a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a second female conductor coaxially separated from the first male conductor comprising a second guide-positioner means internally coupled with such second female conductor by an intermediate section; a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a moving conductor consisting of guide means internally coupled with such moving conductor by an intermediate support, being such conductor mobile and coaxially coupled with the interior of the first male conductor, where it moves to an open position, and is separated from the first male conductor and to a close position where such moving conductor causes a contact between the first male conductor and the second female conductor, by interacting among themselves to the first guide-positioner means of the first male conductor, the second guide-positioner means of the second female conductor and the guide means of the moving conductor; a plurality of contact plates peripherally coupled with the intermediate support border of the moving conductor, each of such contact plates having contact means for supplying pressure.
Abstract:
A high-voltage disconnection knife insulated by air for external use in high-voltage electrical transmission and distribution networks, the disconnection knife includes two copper arms for the disconnection or contact, mounted in a parallel relation to each other, a front and rear contact base, a turning support in the vicinity of the rear base such that the arms turn at one of its ends about an axis perpendicular to them, a central copper block for distribution of the current flowing through the copper arms; the distance between the arms is defined by the set of stainless steel axes, the copper block and the turning mechanism. At the ends of the disconnection arms an aluminum spring of with transverse section of gradually reduced thickness is connected to the external surface, said spring being fixed to the ends of the arms by means of a pair of stainless steel axes. The front and rear L-shaped bases are formed by the bending of a copper sill with rounded edges to define an area of contact.
Abstract:
This invention relates to a telescopic switch for isolated-phase bus duct, comprising: a first male conductor including a first guide-positioner means (4); a 5 second female lead connector coaxially separated from the first connector which includes a second guide-positioning means, wherein said moving contact is coupled coaxially and in a movable manner to the first conductor, and wherein said moving contact moves to an open position, wherein said moving contact is separated from the first conductor and to a closed position where said moving contact causes a contact between the first male connector and that of a second female connector, through interaction with one another from the first guide-positioner means of the first conductor, the second guide-positioner means of the second conductor and the guiding means of the moving contact.
Abstract:
The present layout compaction technique compacts circuit elements in two dimensions of a circuit layout with reduced computational requirements. A circuit layout representation is converted to a constraint graph representation in a reference direction. An orthogonal constraint graph is also constructed. A critical path subgraph is constructed based upon the reference and orthogonal constraint graphs, where one or more critical paths are chosen as the longest paths between the source and sink vertices of the reference constraint graph. Further, each vertex in the constraint graph is converted to an input vertex for each incoming shear edge and an output vertex for each outgoing shear edge. Jogging edges are created between each input and output vertices in the critical path subgraph. Weight values are assigned to each shear and jogging edge. An optimal cutset is determined, which comprises a substantially minimum or substantially maximum cutset based on the sum of weights of the edges of the constraint graph subgraph. The critical path is reduced, where removing a shear edge denotes moving a corresponding circuit element by a certain amount and removing a jogging edge denotes a jog insertion of a flexible element by breaking the element into multiple elements and inserting a jog. The reference and orthogonal directions are swapped and the procedure is repeated for the orthogonal direction. The entire process is iterated for both dimensions until the one or more critical paths are no longer reduceable so that an optimal compaction solution is achieved in two dimensions.
Abstract:
Electrical contacts with a reduced section for use in high-voltage switches, the contacts are produced by machining or by extrusion. The contacts are designed to be used outdoors, indoors, in vacuum or in any other inert atmosphere for electrical switching equipment without additional pressure system or with additional pressure system. The contacts can be used in linear movement, radial movement, or any other type of movement or sliding. The contacts can be used in various shapes, such as contact pins or tulip shapes, partial tulips, or rectangular tulips, or they can be used as the single pressure element for the electrical contact. The contacts are designed to cooperate electrically with opposing contact parts. The contacts can interrupt a physical link with an opposing contact or they can remain in constant contact during the operating movement. The contacts are made from aluminum alloys, with or without contact surfaces. A contact assembly can use the same base materials or different base materials. The contacts can be used as an intermediary between copper and aluminum parts in the switch to prevent corrosion due to the electrochemical potential difference of the materials.
Abstract:
A high-voltage disconnection knife insulated by air for external use in high-voltage electrical transmission and distribution networks, the disconnection knife includes two copper arms for the disconnection or contact, mounted in a parallel relation to each other, a front and rear contact base, a turning support in the vicinity of the rear base such that the arms turn at one of its ends about an axis perpendicular to them, a central copper block for distribution of the current flowing through the copper arms; the distance between the arms is defined by the set of stainless steel axes, the copper block and the turning mechanism. At the ends of the disconnection arms an aluminum spring of with transverse section of gradually reduced thickness is connected to the external surface, said spring being fixed to the ends of the arms by means of a pair of stainless steel axes. The front and rear L-shaped bases are formed by the bending of a copper sill with rounded edges to define an area of contact.
Abstract:
A critical path minimization technique uses a novel reshaping layout reorganization mechanism. Circuit objects and/or object fragments which belong to a critical path in a reference direction are reshaped using resources of an orthogonal direction. A fragment may decrease its size in the layout in the reference direction and increase its size in the orthogonal direction. Types of reshaping include via, diode or tie reshaping, transistor chain reshaping by transistor finger resizing, and transistor chain reshaping by transistor finger removing. The removal technique can include removal of one (or 2N+1) transistor finger(s) from an edge (e.g., beginning or end) of a transistor chain, removal of two (or 2N) adjacent transistor fingers from any position of a transistor chain, removal of one (or 2N+1) transistor finger(s) from inside a transistor chain with diffusion gap insertion, and removal of a group or series of transistor fingers. Such reshaping can allow a more effective compaction of a circuit layout