High-voltage vacuum switch
 High-voltage vacuum load switch / 2247439Proposed vacuum switch has support insulators in each phase, vacuum arc-control chamber and its contacts disconnecting gear, as well as main movable and fixed contacts, and movable breaking contact. Movable contacts are intercoupled. In addition switch is provided with shaft incorporating leverage for transferring rotary motion from operating mechanism. Vacuum arc-control chamber is installed on main fixed contact. Disconnecting gear has contact roller engageable with shaped pushrod secured on movable breaking contact. Profile of pushrod surface is formed by two circle arcs with center disposed on axis of revolution of breaking contact. |
 On-off mechanism for high-voltage vacuum switch / 2246776Proposed ON-OFF mechanism has energy carrier, leverage for motion transfer from energy carrier to output shaft, and tripping mechanism with release lever. Leverage has lever arm, control rod, and dead center crossing kinematic link whose common articulated joint couples it through control rod to leverage arm. First and second members of kinematic link are hinged to output shaft lever and to release lever. |
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On-off mechanism for high-voltage vacuum switch / 2246776 Proposed ON-OFF mechanism has energy carrier, leverage for motion transfer from energy carrier to output shaft, and tripping mechanism with release lever. Leverage has lever arm, control rod, and dead center crossing kinematic link whose common articulated joint couples it through control rod to leverage arm. First and second members of kinematic link are hinged to output shaft lever and to release lever. |
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High-voltage vacuum load switch / 2247439 Proposed vacuum switch has support insulators in each phase, vacuum arc-control chamber and its contacts disconnecting gear, as well as main movable and fixed contacts, and movable breaking contact. Movable contacts are intercoupled. In addition switch is provided with shaft incorporating leverage for transferring rotary motion from operating mechanism. Vacuum arc-control chamber is installed on main fixed contact. Disconnecting gear has contact roller engageable with shaped pushrod secured on movable breaking contact. Profile of pushrod surface is formed by two circle arcs with center disposed on axis of revolution of breaking contact. |
 High-voltage vacuum switch / 2249873Vacuum switch includes vacuum arc extinguishing chamber, control mechanism, tie rod and two electric-current leads. Three insulation struts are mounted vertically in such a way that they form spatial triangle. Each strut includes two insulators arranged vertically along height and made of epoxy-resin compound; mounting members. Vacuum arc extinguishing chamber is arranged inside triangle formed by said insulation struts. Stationary contact of vacuum arc extinguishing chamber is secured to plate of electrically conducting material that rests upon three upper insulators and serves as upper current supply lead of switch. Between upper and lower insulators there is plate that rests upon lower insulators. Said plate is made of electric- insulation material and it carries lower current supply lead of switch; said lead is coupled through flexible connection with movable contact. |
 Vacuum switch / 2249874Vacuum switch includes phase modules mounted on metallic base in which are arranged: drive units with magnetic latch, timing and locking shafts, contact units. Phase modules have supporting insulators in which are arranged: vacuum chambers, contact terminal units and linkage insulators. Shapes of linkage insulator and stationary insulation tubular fragment provide labyrinth air gap between contact terminal units and base; it increases electrical strength of gap. When switch is operated, elastic electrically conducting helices roll out in annular gap between terminal and sleeve of movable contact and it provides multi-point high-conductivity contact. |
 Insulating link / 2251172Proposed insulating link has insulating rod and embedded part designed for installation of insulating links. This conical embedded part is reducing in diameter along insulating rod axis toward its center. Embedded part has several conical sections forming stepped profile along insulating rod axis and reducing in diameter along the latter toward its center. Outer surface of insulating rod is ribbed. |
 High-voltage vacuum switch / 2260868Proposed high-voltage vacuum switch incorporating electromagnetic control system with polarizing permanent magnet for holding movable contact in two extreme positions upon deenergizing electromagnet control windings has corrugation on each of lateral parts of additional flexible contact in center or closer to contacting point, top of this corrugation being brought to pin contact up to stop. When released, distance between tops of corrugations on lateral parts of additional contact is at least shorter than diameter of pin contact and corrugation bending line is disposed at same level and perpendicular to longitudinal axis of movable pin contact. Proposed switch may be found useful for heavy-power stationary mobile and airborne electrical and radio equipment where low power requirement and easy control of components are essential. |
 Multipole heavy-current low-voltage vacuum circuit breaker / 2265254Proposed multipole heavy-current low-voltage vacuum circuit breaker has housing, mainly three vacuum arc-control chambers disposed in same plane, pressure springs, making electromagnet with pusher, breaking electromagnet, disconnecting spring, spring-loaded latch, shaft rigidly coupled with levers for fixing movable-contact rods of vacuum arc-control chambers, leverage incorporating spring, and trip-free mechanism; leverage is made in the form of spatial hinged-lever mechanism whose first link is rigidly coupled with shaft whose extension carries pin-mounted connecting rod; other pin of connecting rod is perpendicular to first one and functions to couple connecting rod with remaining links disposed in same plane; trip-free mechanism and making electromagnet axis are disposed in same plane which is parallel with location plane of vacuum arc-control chambers and is disposed in front of them. Second design alternate of circuit breaker has flat section of leverage incorporating second-order lever whose short arm is coupled with connecting rod through pin and long one is coupled with link whose other end is hinged to trip-free mechanism; spring-loaded latch is provided with two relatively perpendicular ledges, each ledge being parallel with butt-end of making electromagnet pusher, and link axis forms acute angle with this ledge. Third design alternate is characterized in that trip-free mechanism has disconnecting lever, link hinged to leverage, and shaft provided with slot; this shaft is mounted for turning and is provided with rod and force adjuster; shaft rod is coupled with breaking electromagnet armature, spring, and force adjuster; disconnecting lever is installed for resting on shaft and for passing through shaft slot whose width is not smaller than lever thickness and whose depth ensures lever turning with shaft turn and its passage through slot. |
 Vacuum contactor / 2273072Proposed vacuum contactor has insulating case, vacuum arc-control chambers, electromagnetic operating mechanism, disconnecting spring, articulated joint, and insulating rotary lever that mounts plate with hole to pass movable current lead rod and hold-down spring. Articulated joint is disposed in space between movable current lead and rotary lever; hold-down spring abuts against stop on one end and against plate with hole affording easy movement of rod along its axis, on other end. |
 Vacuum switch / 2275708Proposed vacuum switch characterized in in-line disposition of three phases has upper current lead and lower current lead parallel to the latter; current leads of extreme phases are turned in different directions relative to intermediate-phase current leads through definite angle. |
 Vacuum contactor / 2276424Proposed vacuum contactor has insulating case, electromagnetic operating mechanism, vacuum arc-control chamber coupled through movable current lead and insulating swivel lever with electromagnetic operating mechanism armature, and disconnecting spring. Insulating case is provided with jumpers disposed in clearance between electromagnetic operating mechanism and current leads of mentioned chamber to form opening for heat transfer. Contactor incorporates provision for reducing thermocyclic impacts on insulator-metal junction of chamber liable to cause its destruction. |
FIELD: manufacture of high voltage devices, namely constructions of high-voltage single-pole vacuum switches.
SUBSTANCE: vacuum switch includes vacuum arc extinguishing chamber, control mechanism, tie rod and two electric-current leads. Three insulation struts are mounted vertically in such a way that they form spatial triangle. Each strut includes two insulators arranged vertically along height and made of epoxy-resin compound; mounting members. Vacuum arc extinguishing chamber is arranged inside triangle formed by said insulation struts. Stationary contact of vacuum arc extinguishing chamber is secured to plate of electrically conducting material that rests upon three upper insulators and serves as upper current supply lead of switch. Between upper and lower insulators there is plate that rests upon lower insulators. Said plate is made of electric- insulation material and it carries lower current supply lead of switch; said lead is coupled through flexible connection with movable contact.
EFFECT: lowered mass and size of easy-to-operate switch.
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The invention relates to electrical engineering, in particular to high-voltage apparatus, and relates to structures of high-voltage single-pole vacuum circuit breakers.
Known high-voltage single-pole vacuum breaker comprising a vacuum interrupter chamber with stationary and movable contacts, a control mechanism, a rod made of insulating material, two cold end, with vacuum arc chamber placed in a fiberglass enclosure, placed in a metal tank filled with insulating liquid that has two high voltage input fixed on them by the current transformers [1].
Switch [1] is characterized by a relatively high degree of operational reliability, as well as greater functionality, however the placement of the vacuum interrupter chamber in the tank filled with insulating fluid, leads to an increase in mass and size parameters of high-voltage vacuum circuit breaker, creates certain operational inconvenience.
The invention solves the problem of creating high-voltage vacuum circuit breaker, characterized by the minimum size / weight parameters, as well as significant facilities in operation.
To solve the problem in Vysokomol the om vacuum switch, containing vacuum interrupter chamber with stationary and movable contacts, a control mechanism, a rod made of insulating material, two cold end proposed, according to the present invention, to introduce three insulating stand vertically, forming in the space of the triangle, and each insulating stand is made of two placed vertically along the height of the insulators made of epoxy compound, and mounting elements; vacuum arc chamber is located inside the triangle formed by insulating posts, the fixed contact of the vacuum interrupter chamber mounted on the plate made of electrically conductive material supported on the three upper insulator and the upper cold end of the switch, between the upper and lower insulators placed the plate, simply supported on the lower insulators made of insulating material, on which is placed the lower tokoyo switch connected through a flexible connection with the movable contact.
The invention is illustrated by the example of execution. 1 schematically shows the inventive high-voltage vacuum circuit breaker, figure 2 is a view of a figure 1.
High-voltage vacuum circuit breaker includes a vacuum interrupter chamber 1, which has a movable pin is CT 2 and the stationary contact 3.
Rod 4 made of insulating material, is intended for connection of the control mechanism 5 with the movable contact 2.
Each of the three insulating racks made of two identical insulators 6 and 7 made of epoxy compound, and mounting elements 8. Insulators installed in pairs vertically in height so that the insulators 7 are lower for all three racks, and insulators 6 - top.
Insulating rack formed by insulators 6, 7, is set so as to form a space triangle. Vacuum arc chamber 1 is located inside the triangle.
The fixed contact 3 vacuum interrupter chamber 1 is mounted on the plate 9 made of electrically conductive material. Plate 9 rests on three top insulator 6 is the upper current leading high-voltage vacuum circuit breaker.
Between the top 6 and bottom 7 insulators all three insulating racks plate 10 made of insulating material, based on the three lower insulator 7.
The plate 10 is placed lower tokoyo 11 high-voltage vacuum circuit breaker, connected by flexible connection 12 with a movable contact 2 vacuum interrupter chamber 1.
The switch works as follows.
Contacts switch the El open. By including a solenoid actuator (not shown) serves the impulse control to turn on the control mechanism 5 is activated and the associated rod 4 made of insulating material, acts on the movable contact 2 vacuum interrupter chamber 1, the translational movement which ensures its closure within the vacuum interrupter chamber 1 with a fixed contact 3.
The switch contacts are closed. To disable the solenoid actuator (not shown) serves the control pulse is off, the control mechanism 5 is activated and the associated rod 4 made of insulating material, acts on the movable contact 2 vacuum interrupter chamber 1, the translational movement which ensures its opening inside the vacuum interrupter chamber 1 with a fixed contact 3.
In accordance with the claimed solution in LLC “Scientific-production enterprise "Module" designed, manufactured and tested a prototype high-voltage single-pole vacuum circuit breaker type WBLO-27,5. The results of the testing of vacuum circuit breaker confirmed its efficiency and the opportunity for practical application.
Literature
1. Mon. Of the Russian Federation No. 12743 for utility model, the IPC N 01 N 33/66, 2000
High voltage VA is wolny switch, containing vacuum interrupter chamber with stationary and movable contacts, a control mechanism, a rod made of insulating material, two cold end, characterized in that it contains three insulating stand vertically, forming in the space of the triangle, each insulating stand is made of two placed vertically along the height of the insulators made of epoxy compound, and mounting elements vacuum arc chamber is located inside the triangle formed by insulating posts, the fixed contact of the vacuum interrupter chamber mounted on the plate made of electrically conductive material supported on the three upper insulator and the upper cold end of the switch, between the upper and lower insulators placed the plate, simply supported on the lower insulators made of insulating material, on which is placed the lower tokoyo switch connected through a flexible connection with the movable contact.