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Bistable miniature high-capacity relay Bistable miniature high-capacity relay includes a housing from insulating material, which has the first chamber (1b) of the housing, in which single-phase contact unit (4) with two current buses (8a, 8b) and contact spring (13) is located. One end of spring is constantly connected to one current bus (8a), and the other free end containing at least one movable contact has the possibility of interacting at least with one fixed contact (21) located on the second current bus (8b). In the second chamber (1a) of the housing there located is bistable electromagnetic drive (3) with swinging armature (11), which has the possibility of moving spring (13) by means of drive mechanism (6, 23) installed in the housing to close or open an electrical circuit passing through current buses (8a, 8b). Contact unit (4) and drive assembly (3) are located in the housing from insulating material in one or two planes. Contact unit (4) includes multiplate contact spring (13) having U-shape and forming a current circuit, in which electrodynamic forces act. Drive assembly (3) includes one-piece U-shaped yoke (14) with at least one excitation coil (17) on each magnetic rod of the yoke, as well as a central rod of yoke (16) that is supported from a flat constant magnet supporting in its turn swinging armature (11) having V-shape. |
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Charge for production of material for high-current contacts and method of its production Proposed composition contains the following substances, in wt %: copper particles - 20-85, titanium hydride particles - 1-10, graphite particles making the rest. To make material billet, this charge is sintered by feeding electric current pulses there through, current density making 200-500 A/mm2, with simultaneous single-axis reduction. |
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Method of material manufacturing for arc-quenching and electric break contacts and material Method involves mixing graphite particles clad with niobium carbide or chrome carbide and copper or copper allow powder at the following component ratio, wt %: graphite particles 5-20, chrome or niobium carbide 5-20, copper or copper alloy takes up the rest, with graphite to carbide ratio comprising 0.9-1.1, forming a blanc part out of the mix by pressure compression to density of at least 70% of theoretical value, and further blanc part caking by electric current pulses of 100-300 A/mm2 density with simultaneous uniaxial squeezing of the material. |
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Magnetically-operated switchboard Device contains current-carrying elements and magnetic material, a bridging jumper fixed by means of a flexible suspension whereon magnetic material is applied in the form of a thin magnetically soft film at a semiconductor substrate with formed source and drain of a MIS transistor and the current-carrying elements are connected to the source and drain of the MIS transistor. |
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Switch design includes at least two structural members and namely a structural member (20) of the switch and a bearing unit (21). The structural member (20) of the switch with a pivot bearing (36) can rotate in the bearing unit (21). The switch design includes a switch (14) with a contact spring (19). In an inactivated closed position (47) of the switch (14) the contact spring (19) adjoins to a contact (18) of the switch (14). Simple design and self-cleaning effect of the switch are reached when the pivot bearing (36) has a twisted section (35) which allows pressing the switch (14) placing it to the activated closed position (37) through the inactivated closed position (47). At that the contact spring (19) slides along the contact (18) between the inactivated closed position (47) and the activated closed position (37). |
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Method to produce powdered composite cu-cd/nb for electrocontact application From copper and niobium powders they prepare charge, cold pressing and sintering is carried out. Cadmium is added to a stock by diffusion saturation by means of its soaking in atmosphere, containing cadmium vapours. The sintered stock is exposed to deep treatment with pressure, which is combined with hot extrusion and subsequent cold rolling or drawing. Afterwards additional pressing and annealing is carried out. |
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Luminous key for control system, and control system and household electrical appliance Key (20) for a control system (12) has a profiled body (26) made of light-conducting material, wherein the profiled body (26) has an activation direction (28) in which the profiled body (26) moves when the key (20) is activated; a functional side (30) having a light input area (32) and an activation area (34), wherein the activation area (34) is designed to activate a switching element (24) when the key is activated (20); a control side (36) having a light output area (38), wherein the profiled body (26) is designed to direct at least part of light entering the light input area (32) to the light output area (38); a spring-loaded protrusion (40) which is formed across the activation direction (28) integrated with the profiled body (26) such that upon interacting with part (16) of the housing, it is elastically deformed to provide a return force upon activation of the key (20) in order to move the key (20) back to the original position; a force-limiting element (42), which is formed across the activation direction (28) integrated with the profiled body (26) and designed to receive, upon interaction of the activation area (34) with the switching element (24), an excessive activation force through the spring-loaded displacement of the force-limiting element (42), and a first protrusion (52) which is integrated with the profiled body (26) and is designed to interact with part (16) of the housing to form an end stop for activating the key (20). A control system (12) and a household electrical appliance (10) are also disclosed. |
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Switching over insert of electric installation device Switching over insert (1) of electric installation device (46, 47) with the lower part (3) of the body has at least one switching over chamber. At least one rotatable switching over swinging lever (10, 11, 12) installed at the lower part (3) of the body acts on contact rocker arm (6) of the switching over chamber matched to it. In the upper part (28) of the body there is a longitudinal executive element (33, 34, 35) that can be shifted in direction (A) towards the lower part (3) of the body. In the rotatable swinging lever (10, 11, 12) there is one transversal executive element (20) that can be shifted perpendicular to direction (A) and has at least one wedge surface (21, 22) which is subject to action of at least one executive console (36,37) of the longitudinal executive element (33, 34, 35) during shift in direction (A); in result of this action at first lateral offset of the transversal executive element (20) is actuated and then it leads to rotation of the switching over swinging lever (10, 11, 12) and thereby to turn of the contact rocker arm (6). |
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Invention relates to an electric setting device, in particular, a rotary switch or a rotary controller, in particular, a fixed potentiometer comprising a cover (2) and an actuator installed as capable of rotation, which during rotation around a rotation axis passing through the cover (2) causes process of switching or regulation, and also the first and second fixing elements (5, 6), which elastically interact with each other in direction of the axis of rotation, from which the first fixing element (5) is arranged on the actuator, and the second fixing element - on the cover (2). The first fixing element (5) is made in the form of ring-shaped arranged fixing grooves in the actuator, and the second fixing element - in the form of at least one springy tab (6c) with a fixing beak (7c) on the cover (2). |
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Method of coat application on copper contacts of electric switching devices Proposed method comprises ion-plasma spraying of molybdenum on copper contact. Spraying is started at voltage across copper contact of 1100-1500 V and heating to volumetric temperature of 180-230°C.Then, spraying is conducted at reference voltage across copper contact of 110-130 V to make 2-4 mcm-thick coat layer. Then, voltage is increased across copper contact to 1100-1500 V to allows spraying duration of 0.3-0.5 of that for spraying said one mcm-thick coat. Thereafter, spraying is performed at voltage increased many times to said increased voltage and decreased to said reference voltage to produce required thickness. |
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Switch comprises lever controlled to displace between ON position to actuate said tool and OFF position to stop said tool, ON position locking mechanism, OFF position locking mechanism and interlocking control element. ON position locking mechanism locks switch lever at ON position. OFF position locking mechanism locks switch lever at OFF position. Interlocking control element rests on switch lever to displace therewith in lever displacement. Interlocking control element is controlled in first direction to actuate ON position locking mechanism and in second direction to unlock locking mechanism in OFF position. Note here that first direction differs from second direction. |
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Sintered material for high-current sliding electric contact Invention relates to powder metallurgy, and namely to powder antifriction materials for high-current sliding contacts. It can be used for fabrication of current-collecting brushes, for example unipolar generators or current-collecting shoes contacting a rail of a tunnel railway. Material of the high-current sliding electric contact working in the pair with a steel counter relay with contact current density of more than 100 A/cm2 includes the following, wt %: copper 24-57; graphite 2-3; iron is the rest. |
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Method for training of contact gap for vacuum circuit breakers by high voltage Training method is implemented by direct-current high voltage feeding to complete gap between contacts in stages starting from 0.3-0.5 of rated operating voltage. Simultaneously permanent magnet field is created along direction of the gap and its intensity value is increased smoothly from zero up to prebreakdown current moment of about 0.6-0.8 of breakdown current at test voltage. The gap is hold at set voltage equal to 2-3 times of prebreakdown current measured at the beginning till drop, at the first training stage. Magnet field intensity is decreased up to zero and the next stage of training voltage is set. Value of field intensity is increased again from zero up to prebreakdown current available at the first stage. The above cycle is repeated at the next stages. At the last stage training voltage is set as 1.2-1.5 times bigger than testing voltage. The process is repeated at reverse polarity of high voltage applied to the gap and reverse direction of permanent magnet field. |
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Connection of flexible conductors using cold plastic deformation Electric element for low-voltage switch gear contains electrode made in essence of a rigid body with one or more slots and at least one flexible conductor with end section inserted and connected to a respective slot by clod plastic deformation; slots contains at least one wall made with availability of relief area which can hold part of end section when it is inserted into a respective slot. Method of electric element fabrication includes preparation of electrode made of a rigid body with made slots, walls with relief area, preparation of at least one flexible conductor with end section inserted into a respective slot and connected to it by means of cold plastic deformation. |
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Flexible shunt for vacuum circuit breaker Flexible shunt is designed to provide a pathway between movable electrode segment and terminal of the main circuit in vacuum circuit breaker. Flexible shunt contains a pair of conductive plates. Each plate contains the following: connecting area of clamp configured as a flat conductive element connected to clamp; connecting area of terminal segment configured as a flat conductive element connected to terminal segment; flexible arched area capable to connect connecting area of clamp to connecting area of terminal segment. Flexible arched area is configured in the medium part of each conductive plate so that it can protrude outside before installation of a flexible shunt in vacuum circuit breaker. |
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Capacitance sensor element, method of its manufacturing and capacitance device of contact detection Capacitance sensor element (10) comprises a base (1) in the form of a film or a plate, which is formed from an insulating material and has flexible or spatial shape, an electrode (2) of detection, arranged at least on a part of one surface of the base (1) and formed from a translucent conducting layer, comprising a carbon linear nanostructure, such as a carbon nanotube, and an outlet wire (3), which is an outlet from the detection electrode (2). The capacitance device of contact detection comprises a sensor element (10) and a circuit (60) to detect variation of capacitance, which is electrically connected with the detection electrode (2) via the outlet wire (3) and which determines variation of capacitance caused by approaching of a human body to the contact surface (4) or contact of a human body to the contact surface (4). The detection electrode (2) may be coated with a protective film, and the surface of the protective film may be used as the contact surface. |
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Method of making part semis for electric terminals and electric terminal component Invention relates to powder metallurgy, particularly, to making of semi-finished part for electric terminals in the form of a strip. Unit is made from silver-based composite including one or more metal oxides or carbon. Coating of basic metal powder is applied on said composite unit. Coated unit is compacted and annealed in reducing or inert atmosphere or in vacuum. This prevents formation of eutectic melt of composite silver and basic metal that coat the composite silver-based unit. Annealed unit is subjected to extrusion to obtain strip with top side of composite and bottom side of silver or silver-based alloy. |
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Push switch includes an inner button (40), an outer button (10), a switch (30), installed inside the inner button (40), a body (50), attached to the side wall (43) of the inner button (40), an inner flange (51), provided in the body (50) and engaged to the groove (46) of the inner button (40), a protruding section (17), formed in the outer button (10), and an outer flange (47), formed in the inner button (40) and arranged between the protruding section (17) and the inner flange (51) to form a part of the groove (46). The protruding section (17) is separated from the outer flange (47) with a gap. The protruding section (17) rests against the outer flange (47), when the outer button (10) is pushed to elastically deform the inner button (40), to put on the switch (30). |
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Key, method of its making and medical handle part Key comprises: a pot-, cup- or box-like first body part (10), at least in section with electric conducting material, with an integrally formed switching spring (11a) and a single wall (11b), the second body part (12), which in its shape is matched with the wall of the first body part and is inserted in it tightly so that between the first and second body part under the switching spring there is a cavity (14), and at least one countercontact of the switching spring tightly and in insulated manner in respect to the first body part stretching via the second body part and protruding into the cavity under the switching spring. |
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Method for correction of contact gap between sealed contact reed relays According to this method in case when operation ampere-turns of sealed contact reed relay does not correspond to the range of certified values the contact gap between relays is measured by action of pulse-laser radiation on one of contact parts with energy of (0.5-2 J) and pulse length in transmission band of glass envelope focused at the surface of contact part in parallel to the plane of contact gap, at the distance of (1/5-1/3) from the contact part inside glass envelope at the point of sealing. Such action leads to slight plastic deformation of the contact part and to change in contact gap and operation ampere-turns respectively. |
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Rca jack and electric contact system for switching device RCA jack includes a great number of external contact pins (51) and inner contact pins (51'). External contact pins (51) form the shape of external surface (41) of a fixed connector (4) so that contact surface (511) of each of these pins touches external surface (41) of this fixed connector (4). Inner contact pins (51) form the shape of inner surface (42) of a fixed connector (4) so that contact surface (511) of each of these pins touches inner surface (42) of this fixed connector (4). Each contact pin (51, 51') has the first convex contact area (512, 512') to contact surfaces (41, 42) of the fixed connector (4) and the second convex contact area (513) to contact a bushing (6). Besides each convex contact area (512, 512') has a contact slot (515) at its surface. The first convex contact areas (512) of external contact pins (51) are located in a different cross-section apart from the first convex contact areas (512') of inner contact pins (51'). The fixed connector contains a number of holes (44) for ventilation purpose. |
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Electric switch of high performance In the electric switch current flows through the first (22) and second (32) contact line support. Through output (24) electric current (I1) passes in preset direction while through levers electric current (I2) passes in the opposite direction and parallel in relation to current (I1). Interaction of currents (I1 I2) creates repulsive electromagnetic force (F), which is capable to hold levers at a distance from the output thus creating additional compression between contacts. Even though through the second support electric current (I3) passes in just opposite direction in parallel to current (I2) creation of additional electromagnetic force that could separate the levers from the second contact line support and undesired electromagnetic repulsion is prevented between contacts by means of the first (50) and second (70) ferromagnetic device. |
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Electronic device with physical alert Electronic device includes an actuation element configured to alter its profile relative to a housing in response to a device event. Altering the actuation element profile may include externally extending or changing the form factor of the actuation element. Device events, for example when the electronic device is a radiotelephone, may include receipt of an incoming message. When such an event occurs, the actuation element profile of a call activation key is altered. In response to the actuation element profile being altered, a user is alerted on the incoming message, while maintaining the control status associated with the actuation element so that the control status before and after altering the actuation element profile is the same. |
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Contact device comprises a current conductor (1), a contact (4), a contact knife (5) with tabs (6) attached to it in pairs and is additionally equipped with a П-shaped bracket (7), which covers the tabs (6), interacting with the contact (4), fixed on the bottom part (8) of the bracket (7). The lower part of each wall (9) of the bracket (7) is connected with the current conductor (1) via an electric conductor (10) and a bearing plate (3). The length of the bearing plate (3) provides for an insulation layer (11) between the current conductor (1) and the bottom part of the bracket (7). Walls of the bracket (7) cover the tabs (6) of the contact knife (5) on at least one third of the length of their current-conducting part. The electric conductor (10) and the bearing plate (3) are connected by means of a welded joint, for instance. |
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Compact single-operation safety device Invention relates to safety devices of aircraft onboard systems, particular, to those of drones launched from carrier aircraft. Proposed device comprises case, at least, two micro switches, rod, cotter pin, cotter pin extractor, ball retainers and spring-loaded rocker. |
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Disconnector for switching device Invention relates to a switching device, comprising a disconnecting mechanism (10) for detachable connection of the first (12) and second (14) movable tube of current flow path and control of transfer of electric current between them. The switching device comprises a system (26) of transmitting contacts for transfer of electric current from a rotary end rod (30) into the first movable tube (12) of the current flow path. The system (26) of transmitting contacts comprises at least one flexible woven conductor (36), rigidly fixed on both ends on the first tube (12) of the current flow path. The flexible woven conductor (36) is additionally in rigid contact with the specified end rod (30) in the intermediate point along the length of the flexible woven conductor (36) between its ends. |
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Housing with structural assembly positioned therein Invention relates to a housing (1) with a structural assembly (2) positioned therein, the assembly containing at least one executive element (3), e.g. a potentiometer, a circuit breaker, an adjusting eccentric, an adjusting screw etc. with a control element (5) for actuation of at least one executive element (3). The executive element (3) is positioned next to the housing (1) external wall (6) while the control element (5) is positioned in the area of its butt end turned towards the external wall (6), has a slot (15) for the drive tool positioned inside the area of the cutout (14) in the external wall (6) limiting the executive element operational stroke. |
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Polarised magnetically operated sealed switch and polarised switching device In a polarised magnetically operated sealed switch comprising contacts from magnetic soft material with external leads, and also a permanent magnet, one of poles of which adjoins the contact lead, the permanent magnet is formed by ring sectors rigidly connected into a radially magnetised magnet, and such sectors are made from a highly coercive magnetic material on the basis of the rare earth elements, and is coaxially installed at least on one of leads of the magnetically operated sealed switch. At the same time the polarised magnetically operated sealed switch may contain an additional lead of that contact, on the cut lead of which the magnet is placed. The middle part of the additional lead is arranged along the magnetically operated sealed switch, its one bent end is located between the magnetically operated sealed switch and the magnet and is electrically connected with the main lead, the length of which corresponds to the height of the magnet placed on it, and its other end is brought out at the magnetically operated sealed switch side, which is opposite relative to the magnet. |
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Invention relates to electrical equipment, in particular, to design of magnetically operated sealed contacts, and may be used in industrial production of these instruments. A magnetically operated contact comprises a glass balloon, at the ends of which there are round outlets of ferromagnetic contact parts tightly sealed, free ends of which with width "b" at the flattening thickness "h" are separated with a gap in the area of their mutual overlapping with a value "a". Besides, in each contact part, within the ratio of 0.8≤"a"/"h"<2, from 50% to 100% of the contacting surface limited with the area of the rectangle with sides ("b" - "h" ) and "a", consists of sections of surface of volume nitriding with thickness of the nitrided layer of up to 80 nm. |
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Emergency disconnection device Application: in the field of electrical engineering. The invention relates to a switching device, comprising the following components: the first unit (1), comprising a driving organ (10), which may take idle position and working position; the second unit (2), installed on the first unit (1) and comprising a movable bridge (22) with movable contacts (221), acting relatively to fixed contacts (201) between the closing position and opening position, to accordingly close or open electric circuit depending on the position of the driving organ (10); at the same time: the movable bridge (22) is arranged as capable of rotation around the axis of rotation (A) and may take the third position for opening of an electric circuit, when the first unit (1) is mechanically disconnected from the second unit (2). |
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Invention refers to electric engineering and may be used in electronic industry when making magnetically operated sealed switches. A feature of the proposed method is the fact that before and after azotising of contact parts in a magnetically operated sealed switch, its breakthrough voltage is measured, and thickness of the azotised layer is monitored, which is defined in accordance with the following formula: t = C(Uo-Ua)/Uo. |
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Panel device (10) for operations input comprises a panel section (311), the first conducting layer (38), arranged on the side of one surface (31a) of the panel section (31), an insulating layer (34), which is imposed onto the first conducting layer (38) and the second conducting layer (32), imposed onto the insulating layer (34). The first conducting layer (38) and the second conducting layer (32) are made by application of a coating from a dissolved electroconductive substance (38a, 32a). The insulating layer (34) is arranged by application of a coating from an insulating substance of hardening accelerating type (34a). The panel device may be manufactured by the method of screen printing. |
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Contact switching device and electromagnet relay In a contact switching device or an electromagnet relay with a contact switching device a movable contact opens and closes relative to a fixed contact arranged in the opposite position, by actuation of the movable contact element, comprising the fixed contact. The contact switching device comprises a guide element, which is arranged in the side area of the movable contact element to control air flow in the working range of the movable contact element, which prevents sticking of thin particles to the contact surface, as a result the contact resistance does not increase. |
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Movable contact of a movable contact element attached to one end of a movable shaft is put in contact with a fixed contact and is separated from the fixed contact installed in a ceramic body by reciprocal movement with a movable shaft, the other end of which is attached to a movable steel core, making reciprocal movement in a cylinder with a closed end on the basis of excitation and demagnetisation of an electromagnet unit installed on the outer periphery of a cylinder with the closed end. In particular, a circular rib protrudes above an upper surface of a circular flange so that a section soldered with a braze and formed on the lower end surface of a ceramic body is closed at the inner side with a circular rib. |
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Control facility (10) designed to move mobile elements, such as rolled curtains and similar devices comprises a reduction gear (11) and a limit switch (12). The limit switch (12) has two detection sensors (13, 14), every of which complies with one of two limit positions of movement, which must be detected and which are linked to sliders (21, 22), connected to a threaded rod (20). For one of the sensors there is a deactivating facility (23) to deactivate detection of the appropriate slider for the sensor and a stop device (24) to stop displacement of the appropriate slider towards the sensor in a point of normal detection of the slider by the sensor. |
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Method to manufacture magnetically operated sealed contact In a magnetically operated sealed contact with ferromagnetic contact parts arranged in a glass body, on a contacting surface of contact parts due to bombardment by particles with energy of 300-10.000 eV and dose of at least 1019 cm-2 create nano- and microledges. |
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Method for manufacture of reed relay with carbonitrated contact surfaces In the process of welding-up or subsequent ion plasma treatment conditions are created for generation of a nitrogen-and-carbon-containing atmosphere in the reed relay vessel (99.95% of nitrogen and 1-5% of a carbon-containing gas) with ion plasma treatment performed during 31-3000 s which results in formation of carbonitride, nitride and carbide layers of the reed relay contact pieces material base elements within the contact pieces near-surface areas. |
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Contact unit of fast-acting circuit breaker Contact unit contains a main moving contact, a quick-disconnect arcing contact (fixed in the main moving contact grooves so that to exclude displacement relative to the main moving contact), an axially rotating roller fixed on a lever affected by the opening spring and the arcing contact contacting pressure spring interacting with the main contact via a rod. Axially rotating round the roller is the main moving contact consisting of a copper bus, a silver contact brazing and a detachable horn which ensures successive rupture of the main and the arcing contacts and the silver edging protection against arc erosion without usage of additional components for the arcing contact rotation round the silver edging. |
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Electric switch includes body (1), shaft (4) provided with, at least one tooth (18), at least two cavities (11-14) in switch, each provided with, at least, two movable electric contact elements (8), with one for each cavity (11,14). In addition, the shaft (4) is realised so that the movable contact elements (11-14) can be shifted due to the action of at least one tooth (18) while shaft (4) is rotated. The switch contains also movable separating element (5), located between the shaft (4) and movable electric contact elements (8) to transfer shaft (4) action to movable contact elements (8). |
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Multipositional rotary switch consists of several switch chamber modules that are placed one by one and are designed identical relative to each other. Each module of the switch chamber contains a separate line switch connected to the circuit. The separate drive body contains a set of creepers for the switch shaft. The switch shaft is connected to the jaw carrier by means of a gear drive. The jaw carrier is placed between the unit made of the switch chamber modules and the activation mechanism body. The activation mechanism body is designed for standard configuration of the multipositional rotary switch with three switch chamber modules connected to each other. The electric terminals of the multipositional rotary switch are placed on the narrow sides of separate switch chamber modules. Thus, terminals are provided on two sides of the ready multipositional rotary switches where the terminals on one side are placed at equal height. |
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Method of producing contact element for switch and contact element Invention relates to powder metallurgy, in particular, to method of producing contact element for switch. To form slot and contact pouter contour in powder material in mould, slots are formed in direction, in fact, parallel with normal line to contact element surface. This is effected by compaction and thermal treatment using plastic or metal film arranged between tool and powder material. |
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Electric contact comprises a contact point, and a device for its fixation, which is arranged in the form of a current-carrying holder equipped with elastic elements with tabs, at the same time the contact point is made in the form of a truncated pyramid with the base in the form of a rectangle, and elastic elements fix the contact point at three sides. The contact point is fixed against horizontal displacement along the holder at the side free from elastic elements, by means of tabs bending, and faces of the truncated pyramid are arranged to the base at the angle of 75-87 degrees. |
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Contact point and method of its making Contact point from a composite material is made from a fine-grained dense graphite with specific electric resistance of not more than 16.0 mcOhm*m and compression strength of at least 60 MPa, with ash content of not more than 0.3% and porosity of not more than 20%, with metal additives of silver that are evenly distributed in the inner volume and make at least 7 wt %. The contact point is made in the form of a truncated pyramid with a base in the form of a rectangle. Faces of the truncated pyramid are arranged to the base at the angle of 75-87 degrees. The method to manufacture a contact point consists in the fact that initially a contact point is manufactured by dimensional mechanical processing from a fine-grained dense graphite, then the contact point is impregnated with an aqueous solution of silver nitrate, is placed into a container, filled with wood charcoal, recovery burning is carried out in accordance with a certain temperature-time mode 2-3 times with final recovery burning to achieve weight increment of the contact point mass of at least 7%. |
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Method for manufacturing contact part of medium-voltage switching device and contact part Vacuum chamber is encapsulated together with moulding core which is attached to it on its lower cover. Before encapsulation, on outer circumferential line of vacuum interruption chamber cover or close to it, compensation ring is accommodated as separate die cast-moulded seal between lower cover of interruption vacuum chamber and moulding core, and then also encapsulated so that it stays as residual seal in sheath. Then, moulding core is removed. |
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In several horizontal planes around rotating switching axis on insulating frame, fixed contacts are located. These contacts contain upper and lower contact fingers which are released and closed by electroconductive bus as moving switching contact. |
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Blade comprises a movable jack-in contact, a fixed contact and a plank, movably fixed to the fixed contact and pressed to it by means of a spring so that it is possible to locate the movable jack-in contact between the fixed contact and the plank. The fixed contact is made from a single electroconductive plate structurally divided into a support part, a contact part and an output. The support and contact parts are arranged perpendicularly to each other, and the output is arranged either in parallel to the support part or in parallel to the contact part. |
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Electric breaker with contact element installed as capable of rotation Breaker comprises a contact element and a displacement device. As the breaker closes and opens, the displacement device moves the contact element, and to open and close the breaker, it rotates the contact element (44) around the axis. The contact element (44) is installed on the shaft (D). The drive rotates the shaft (D) to open and close the breaker. The contact element has two contact surfaces (45, 46). In the closed position of the breaker one contact surface (45) is in contact with a bus bar (S), and the other contact surface (46) - with a conductor (43) installed in a case (41). The contact element (44) is installed radially on the shaft (D) with capability of displacement. |
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Mechanism with two fixed positions and electric control device comprising this mechanism Mechanism with two fixed positions comprises a driving unit (4), made as capable of sliding displacement between rear and front positions, and capable to retain the unit (4) in one of its positions after effecting the force for sliding displacement. The mechanism comprises facilities of the unit (4) return, a traction rod (21), comprising a sliding contact (35), and a cam surface (37), along which the sliding contact moves (35) and from which the central section (40) protrudes, a cam track comprising the first path and the second path for the sliding contact (35) and arranged around the section (40). The mechanism also comprises locking facilities that cover access to the second path for the sliding contact. The track is made as flat, and locking facilities comprise a branch (67) of a spring, which, when unloaded, is arranged crosswise to the track at the connection between the first path and the specified second path. The invention also relates to the electric control device, comprising the specified mechanism. |
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Method for production of ag/sno2 powder mixture for interrupting contacts The invention relates to powder metallurgy, in particular, to metal powder products. It can be used in production of ceramic metal materials for interrupting contacts based on silver and used in low-voltage equipment. The intermediate thermally unstable composition components Ag2O and Na2SnO3 are produced during the single-stage deposition from the solution containing AgNO3, Na2SnO3 and NaOH. The deposit containing SnO2 is extracted from the resulting mixute, and the mixture is dried and thermally processed. |
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Circuit for generating double images Invention discloses a circuit and a method of displaying at least a first and a second image. The circuit includes at least one light source (120, 121, 220, 320, 321) configured to generate light, having at least a first and a second light characteristic and at least an element (122, 123, 223, 322, 323) for generating the first and the second image, which is configured to display the first and the second image (128, 129, 230, 231), respectively. The element (122, 222, 322) for generating the first image is at least sensitive to light, having a first light characteristic. The element (123, 223, 323) for generating the second image is at least sensitive to light, having a second light characteristic. |
Another patent 2513065.