• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to the field of electrical engineering. The disconnector consists of a metal case, gas-insulated high-voltage distributor 1x devices with slowly actuated contact elements 4, which are surrounded by excitation electrodes (contact elements) 1,2 and in the closing position they are in contact with each other, X-X X X X-. rvOW iO L fff 8 10 P inside the contact element 1 is located a podrgana insulating tube 8, which in the process of switching mainly closes the gap 3 between the contact elements 1,2 until the contact elements move s 4. The purpose of the invention - the exclusion of occurrence of high-frequency resonant oscillation. According to the invention, there are two electrically connected or respectively connected with one of the contact elements 1,2, approximately equal in size to the moving resistor, resistor 10, which are switched to the start of mode C 9 and after a long process of closing the gap 3 also overlap With the insulating tube 8, until the contact elements 4.1 come into contact with each other. Thus, the pre-break electric arc 14 is ignited between o o; resistors 10. 6 Cp f-ly. 7 il. SD 4 CM ig.Z -. V. (. 4
    公开号:SU1269754A3
    申请号:SU843781690
    申请日:1984-08-13
    公开日:1986-11-07
    发明作者:Шульц Винфрид
    申请人:Сименс Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a disconnector for a metal-enclosed, gas-insulated high-voltage 1 ", 1X switchgear with two cylindrical contact elements, which, if necessary, are surrounded by excitation electrodes and in a closed position are in contact with each other, for which during the switching process at least one contact element moves along common to both elements of the longitudinal axis, while inside the contact element or the excitation electrode is a movable insulating tube to the torus during the switching process in the mostly overlaps the course of the disconnector between the contact elements as long as the contact elements are moved.
    The purpose of the invention is to eliminate the occurrence of high-frequency resonant oscillations.
    FIG. Figures 1-4 show a schematic of the connector in working condition in different positions, a longitudinal section; in fig. 5-7 - the same, variant (only necessary parts are presented without a metal case, identical numbers are given for identical parts).
    The disconnector (Figures 1-4) for high-voltage distribution devices for gas-insulated, in particular SF6 gas-insulated, high-voltage distribution devices contains two coaxial cylindrical contact elements 1 and 2 that are opposite each other and have the form of excitation electrodes. The gap between them is in the off position 3. Inside the right-side hollow cylindrical contact element 2 is located a contact tube 4, which through the sliding contact 5 is connected by direct current with a contact element 2 and thus has the same potential with it. This contact tube 4 has the function of a movable contact element. On the end side, the contact tube 4 is provided with a bulge which, in the on position, lies adjacent to the inward edge 7 of the opposite contact element 1.
    In coaxial element 1 there is an insulating tube 8, which in
    avoiding slipping spark discharges on its outer surface provided with ribs 9; The outer diameter of the ribs 9 is smaller than the diameter of the edge 7
    the holes of the contact element 1, There are two more rod-shaped resistors 10 located on the longitudinal axis of the contact elements 1 and 2. Resistors 10 are made with
    low inductance and capacitance; and have a thermally well-conducting ceramic carrier, for example, from. In the usual way, a layer of resistance was applied by burning it. The end faces of the 11 resistors are equipped with massive metal contacts. The outer diameter of the resistors 10 is smaller than the inner diameter of the insulating tube 8.
    0 In the disconnector (Fig. 1) in the off position I1 inside the left contact element, both the insulating tube 8 and one of the resistors 10 are arranged so that they do not protrude beyond the end surface of the contact element 1. The same applies to the contact element 2, inside which n; 1 input ms, another resistor 10 to contact tube 4.
    0 Thus, the electric field inside the gap 3 depends on the shape of the contact elements 1 and 2 and is not disturbed by the internally located parts.
    5 3 start movement
    (FIG. 2), by means of an actuator (not shown), one insulating tube 8 moves from the left contact element 1 outwards into the gap 3 until
    权利要求:
    Claims (1)
    [1]
    0 it does not reach the end position, which relative to the opposite contact element 2 has the distance 12 indicated by an arrow. This distance 12 is chosen so that sliding spark discharges could not occur on the surface of the insulating tube. Fig. 3) both resistors 10 are inserted symmetrically on both sides by the drive itself into the gap 3. Thus, the remainder 13 of the discontinuity 13 remaining between their both ends of the push-button surfaces 11 is located in the middle of the gap 3. If this remains approx gap 13 is sufficiently small, then between the two resistors 10, an electric arc 14 arises preliminary breakdown. Since the electric pre-breakdown arc 14 is ignited inside the insulating tube 8, which extends far enough, the pre-breakdown of the electric arc 14 to the body direction is impossible, since the insulating tube 8 shields it. Due to the symmetric quenching specified by the resistors 10, high-frequency oscillations cannot occur when the electric arc 14 is re-ignited prior to initialization. When the dinitel connector is switched on (Fig. 4), both resistors 10 with their end surfaces 1 1 are in contact with each other and, moreover, the contact tube 4 introduced into the gap 3 by means of its own drive reinstates the insulating tube 8 again inside the contact element 1. Contact The tube 4 is in contact with the edge 7 of the contact -element 1 by means of its face thickening 6 so that a conductive connection between the two contact elements 1 and 2 arises. At the same time, the protruding heat produced by the current can but out through the metal contact tube 4. When opening the disconnector, the individual parts move in the opposite sequence. Initially, contact tube 4 is retracted - inside contact element 2, and insulating pipe 8 enters respectively into gap 3 and closes it up to a distance of 12. Both resistors 10 with their own drives are symmetrically pulled out of gap 3, and if the resistors 10 are in a quiescent state, the insulating -pipe 8 again leaves the gap 3, until it comes to its rest position inside the contact element 1. Disconnector SF-5.7) for a gas-insulated high-voltage distribution box with a metal case The device has a stationary cylindrical contact element 16 surrounded by an excitation electrode 15, which on its end surface 17 has a protrusion 18 protruding up to the end surface of the excitation electrode 15. On the contrary, another excitation electrode 15 is located which surrounds the movable contact element 19. This movable contact the element 19 is made in the form of a pipe and, in its switching position, is in contact with direct current with the opposite excitation electrode 15. Inside the tubular contact element 19 there is an insulating pipe 8 having its own drive. On the end surface turned to break, a high-resistance semiconductive insulating tube 8 is equipped with a metallic contact 20, having a middle hole 21, which is in the vice; the whip position provides connection relative to the fixed contact element 16 of this protrusion 18. The metal contact 20 is connected to the end of the resistor 22, which has a different metal contact 23 on the other end surface. This resistor 22 is rigidly located in the insulating tube 8 and moves with it. In addition, inside the insulating tube 8, there is a second resistor of the same magnitude 24, which on its end surface facing the hollow surface is provided with a spring metal contact 25, while its other end is connected to its own drive (not shown). The outer diameters of the resistors 22,24 are smaller than the inner diameter of the insulating pipe 8. In the off position of the disconnector (Fig. 5), the movable tubular contact element 19, like the insulating pipe 8 with both resistors 22 and 24, is inside the excitation electrode 15. At the beginning of the switching dual, the insulating tube 8 is inserted into the gap 3 with its own drive and at the same time the first resistor 22 is rigidly connected to it until the electrical contact between the metal contact 20 and the fixed contact element 16 is made. Thus, the resistor 22 is electrically connected to the fixed contact element 16 and receives its potential. In this position, the entire gap 3 is covered by an insulating pipe 8. Then the second resistor 24 inside the insulating pipe 8 with its own drive enters, into the gap 3 (Fig. 6). If the spring metal contact 25 of resistor 24 is sufficiently close to the metal contact 23 of resistor 22, an electric arc can be ignited between the two, which is ignited only through both resistors, while the insulating tube 8 prevents it from moving to the housing. After the two resistors 22 and 24 come into contact with each other by means of their own drive, the movable contact element 19 closes the gap 3 and thus makes contact with the opposite excitation electrode 15. When switching on, the movement of the insulating tube 8 together with the resistor 22 is relatively slow, and the resistor 24 must move faster in order to avoid capacitive shunting between the resistor 24 and the movable contact element 19, FIG. 7 shows the final position of the closed disconnector. When opening the disconnector, the movement of individual parts is carried out with, respectively, in reverse order. The movable contact element 19 is drawn back to its original position inside the excitation electrode 15, then the resistance 24 inside the insulating pipe 8 is brought back to its original, position, and the insulating pipe 8 together with the resistor 22 blows (from break 3, Invention 1 A switch for switchgears with two cylindrical contact elements, which are surrounded by excitation electrodes and in a closed position, are in contact with each other, during the switching process at least one end The active element moves along the longitudinal axis common to both elements, while inside the contact element or electrode a movable insulating tube is located, which, in the course of co-switching, basically closes the gap between the contact elements during their movement, which is In order to eliminate the appearance of high-frequency resonant oscillations, on the longitudinal axis common to both the contact 1Pz1x elements, two electrically connected and having the ability to be connected to one of the contact elements are located Copies of the same sized moving resistors, the outer dimensions of which are smaller than the inner diameter of the insulating tube, while these resistors are arranged so that at the beginning of the switching are introduced into the gap, and then overlap with the insulating tube until contact occurs, each resistor and the insulating tube is equipped with its own drives. 2, Disconnector according to claim 1, I, of which it is implied that the resistors have a low inductance and capacitance. 3, An isolator according to pi, 1 and 2, characterized in that the resistors have a ceramic frame with good thermal conductivity, 4. An isolator according to claims. 1 or 2, or 3, characterized in that the resistors on at least one of the facing sides of each other have spring-loaded metal contacts. 5. Disconnector PP, 1-4, characterized in that with one fixed iodine movable contacts one of the resistors is rigidly fastened to the insulating pipe and serves as a drive for it, and the second resistor is located inside the insulating pipe with the possibility of movement, while the speed moving the movable resistor below the speed of moving the resistor bonded to the insulating pipe, 6. The disconnector according to claim 1, wherein the insulating pipe is provided with fins. 7, the Disconnector according to claim 1, wherein the insulating tube is made of high-resistance semiconducting.
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    同族专利:
    公开号 | 公开日
    EP0136965A1|1985-04-10|
    EP0136965B1|1987-03-18|
    BR8404326A|1985-07-30|
    US4539448A|1985-09-03|
    CA1230629A|1987-12-22|
    ZA846830B|1985-04-24|
    JPH027128B2|1990-02-15|
    DE3331819A1|1985-03-21|
    JPS6072119A|1985-04-24|
    DE3462729D1|1987-04-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2644387C2|2013-05-30|2018-02-12|Сименс Акциенгезелльшафт|Electrical switching device|FR1080200A|1953-06-17|1954-12-07|Merlin Gerin|Circuit breaker contact protection device|
    CA678008A|1960-02-05|1964-01-14|Westinghouse Electric Corporation|Circuit interrupters|
    FR1514265A|1967-01-09|1968-02-23|Merlin Gerin|Resistance self-blowing switch|
    FR2057344A5|1969-08-12|1971-05-21|Merlin Gerin|
    US3829707A|1973-02-09|1974-08-13|Allis Chalmers|Gas insulated high voltage electrical transmission line with means for damping transients|
    IT1047627B|1974-10-01|1980-10-20|Reyrolle Parsons Ltd|IMPROVEMENT IN RI SWITCHES FOR HIGH VOLTAGES|
    DE2704389C3|1977-01-31|1980-06-26|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Disconnector for metal-enclosed high-voltage switchgear|
    JPS5559613A|1978-10-30|1980-05-06|Tokyo Shibaura Electric Co|Gas breaker|
    FR2450501B1|1979-03-02|1982-01-22|Alsthom Cgee|
    GB2081976A|1980-08-08|1982-02-24|Ass Elect Ind|Arc preventing in switches|
    DE3122442A1|1981-06-02|1982-12-23|Siemens AG, 1000 Berlin und 8000 München|DISCONNECTOR FOR HIGH VOLTAGE SYSTEMS|
    DE8119801U1|1981-07-02|1984-11-29|Siemens AG, 1000 Berlin und 8000 München|Contact system for compressed gas circuit breakers|DE3405850A1|1984-02-16|1985-08-29|Siemens AG, 1000 Berlin und 8000 München|DISCONNECTOR FOR METAL-ENCLOSED, COMPRESSED-GAS INSULATED HIGH-VOLTAGE SWITCHGEAR|
    DE3832171C2|1988-07-01|1990-06-21|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De|
    JP3437633B2|1994-03-31|2003-08-18|株式会社日立製作所|Circuit breaker with parallel resistance|
    US6313641B1|1995-03-13|2001-11-06|Square D Company|Method and system for detecting arcing faults and testing such system|
    DE19543815A1|1995-11-24|1997-05-28|Asea Brown Boveri|Electrical switching device|
    US5933308A|1997-11-19|1999-08-03|Square D Company|Arcing fault protection system for a switchgear enclosure|
    JP5188176B2|2007-12-28|2013-04-24|三菱電機株式会社|Ground switch|
    HUE052765T2|2016-08-26|2021-05-28|Abb Power Grids Switzerland Ag|Switch and method for disconnecting a switch|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19833331819|DE3331819A1|1983-09-01|1983-09-01|DISCONNECTOR FOR METAL-ENCLOSED, COMPRESSED-GAS INSULATED HIGH-VOLTAGE SWITCHGEAR|
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