• 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:
    The invention relates to the field of electrical engineering, in particular, to high-voltage installations. In a high-voltage gas-insulated installation, in a metal case with a discharger 7 for protection against overvoltages, located in a special hermetic case 6 and connected by means of a gas-tight hermetic inlet 5 to a conductor 1 of a high-voltage installation. Interfering electric arcs due to overvoltage can cause the surge voltage to be heavily loaded to protect against overvoltages due to dynamic forces. To avoid this, there are two supporting elements in the form of electrodes 12, 13 between the two inlets 5 and the overvoltage suppressor 7, between which there is an elastic current-carrying tape 14. The cross-section of this current-conducting tape is calculated so that it melted when current flowed was equal to or greater than the current required to reduce the pressure in the discharge cell to protect against overvoltages after the electric arc was blown out of the discharge case. As a result of this, a mechanical disconnection of the discharge overvoltage protector and input 5. 5 hp occurs. f-ly, 2 ill.
    公开号:SU1498404A3
    申请号:SU874028924
    申请日:1987-02-06
    公开日:1989-07-30
    发明作者:Кирх Йоханнес；Цеманн Эгон
    申请人:Сименс Аг (Фирма)；
    IPC主号:
    专利说明:

    one
    (21) 4028924 / 24-07
    (22) 02.02.87
    (31) p 3604785.6
    (32) 02.13.86
    (33) DE
    (46) 07/30/89. Bul Number 28
    (71) Siemens AG (DE)
    (72) Johannes Kirch and Egon Zemann (DE) (53) 621.316.933 (088.8)
    (56) Application for FRG No. 2247996, cl; 21c 40/08, 1975.
    (54) HIGH VOLTAGE INSTALLATION (57) The invention relates to electrical engineering, in particular, to high voltage installations. In a high-voltage installation with gas insulation in a metal case with a discharger 7 for protection against overvoltages located in a special hermetic case 6 and connected by means of a gas-permeable hermetic inlet 5 to a conductor 1 a high-voltage device.
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    41
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    04
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    Settings Interfering electric arcs due to overvoltages can cause the surge voltage to be heavily loaded to protect against overvoltages due to dynamic forces. To avoid this, in the connection between the inlets 5 and the discharge duct 7 for the protection against overvoltages there are two supporting elements in the form of electrodes, between which there is an elastic conductive tape 13. The cross section of this invention relates to a high-voltage installation with gas insulation in a metal case with an overvoltage discharger, co.tr, rsh is also located in a specially filled hermetic structure, filled with ha, connected to the metal case of a high-voltage installation between Twomey gastight input, and contains means which after the actuation of the electric arc is blown fcvo housing in a metal casing.
    The purpose of the invention is to increase the reliability of the high-voltage installation by removing the load voltage at the onset of a short circuit arc.
    Figure 1 shows the high-voltage installation, a general view; Fig. 2 is a variant of the elements of the connection of the supporting elements.
    A conductor 1 of a high-voltage installation, insulated with hexafluoride in a metal case, located between the generator of the power station and the transformer, is held by insulators 2 at some distance from the metal case 3. Along conductor I, a tap 4 is provided leading to an input 5, which is sealed and durable compression, and this input is transferred to a special metal case 6, in which is located a discharge 7 for protection against overvoltages. The surge arrester 7 has a housing 8 of an insulating material, such as porcelain or plastic, in which there are sparks and are dependent on. resistance voltage or only dependent
    The conductive tape is designed in such a way that it melts when current flows a current equal to or greater than the current required to reduce the pressure in the discharge circuit to protect overvoltages after the electric arc is pulled out of the discharge case. As a result of this, a mechanical disconnection of the discharge overvoltage protector and input 5. 5 occurs. 1W. f-ly, 2 ill.
    five
    from voltage resistance. In addition, on the top and bottom flanges 9
    For the surge protection, Q Q, special means 10 are provided, which do not allow the blowing of interfering electric arc after overloading of the surge 7, so that this
    5, the detector then burns in the housing 6, while its upper input point passes to the wall of the housing 6.
    In the connection between the input 5 and the discharger 7, for protection against perpendicular research institutes, two support elements I and 12 are located in the form of electrodes, which are connected to each other using an elastic conductive tape 13. Support elements 1: 5: and 12 have rounded surfaces 14 facing each other so that they do not adversely affect the electric field. The diameter of the support element I1 located next to the input 5 is larger than the diameter of the other support element, respectively, the surface 14 is also larger.
    The elastic conductive tape 13 consists of strips or tapes made of copper and is screwed to the surfaces 14 of the supporting elements 11, 12. The cross section of the elastic conductive tape 13 is calculated from the condition that the conductive tape 13 melts when the current flows the same or
    0 greater current than it is necessary to blow an electric arc. As a result, after the occurrence of a short circuit in the surge arrester 7, overvoltage protection is interrupted.
    5, the connection between the input 5 and the surge suppressor, so that a mechanical disconnection is created. High dynamic usi0
    five
    The LIAs associated with such short-circuit currents are thus blocked from the surge arrester 7 for protection, against overvoltages, and the reverse effect of the surge arrester 7 on the input 5 can be avoided.
    After this elastic current-carrying tape 14 has melted, the lower input point of the electric arc remains on the supporting element 11, which is adjacent to the input 5. It is. The large surface 14 provides a sufficiently large space to move the lower point of the electric arc. In order for the supporting element 11 to burn an interfering electric arc inside a sealed metal box, it was not damaged too much from a material that is resistant to burning.
    Figure 2 shows a second embodiment — a slightly modified version of the connection between the two supporting elements P. and 12. They have correspondingly recesses 15 on their surfaces 14, into which is inserted a spiral spring 16, made of steel. This coil spring 16 holds the elastic conductive tape 13.
    Thus, there is no strong direct connection between the conductive tape 13 and the supporting elements 11 and 12. When the system is loaded with short-circuit currents, after the operation of the arrester 7, the conductive tape 13 consisting of copper melts first, because of the different tape and the springs, the predominant part of the current passes through the conductive tape 13. The spiral spring 16 is simultaneously compressed as a result of the current and jumps out of the recesses 15, so that the connection between the support elements 11 and 12 is interrupted and the mechanism uncoupling
    权利要求:
    Claims (4)
    [1]
    As a result of applying a current-carrying tape that burns out at certain current values, a point (zone) of a predetermined fracture is created practically in the connection between the input and the discharge overvoltage protection, which in the event of damage causes mechanical disconnection. As a result of this, dynamic forces from the surge arrester for overvoltage protection or input arising at high short-circuit currents are blocked. In addition, one input point is displaced in a metal case, previously removed from the arc of a light arc, by a supporting element connected to the input, which acts as a burned electrode. Invention Formula
     A high-voltage installation containing a gas-filled metal case with elements of electrical cheshg and a surge suppressor installed also in a gas-tight sealed metal case connected to the metal case of the installation and connected to the indicated circuit elements by means of a sealed lead-in
    moreover, said discharge unit contains means for blowing an arc out of its body into said sealed case, characterized in that, in order to increase reliability of operation by removing dynamic load when a short circuit arc is detected, two additionally installed between said hermetic input and discharge unit introduced support
    element, made in the form of electrodes with rounded surfaces facing one another, between which is additionally inserted elastic conductive tape with a cross section calculated from the condition of its melting during the flow of current equal to or greater than the current required for pressure relief in discharge
    after blowing the arc out of its body.
    [2]
    2. Installation pop. 1, characterized in that said elastic conductive tape is held by an additionally inserted helical spring inserted
    between the surfaces of the supporting elements.
    [3]
    3. The installation according to claim 1 or 2, T is characterized in that the surface of the support element located near the input is selected more than the surface of the support element located on the discharge overvoltage protection.
    [4]
    4. The installation according to claim 1 or 2, wherein the support element, located next to the input,
    made of material, mountain.
    resistant to about
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    同族专利:
    公开号 | 公开日
    US4754363A|1988-06-28|
    EP0236257A1|1987-09-09|
    EP0236257B1|1989-12-27|
    DE3604785A1|1987-08-20|
    CA1296382C|1992-02-25|
    JPS62193074A|1987-08-24|
    DE3761280D1|1990-02-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2158859A|1936-11-28|1939-05-16|Gen Electric|Electric protective system and apparatus|
    US2174477A|1938-10-29|1939-09-26|Ralph R Pittman|Surge-protected fuse link|
    US2315320A|1939-04-21|1943-03-30|Line Material Co|Automatic circuit-interrupting device|
    US2504438A|1944-07-19|1950-04-18|Electric Service Mfg Company|Circuit interrupter|
    US2989608A|1956-05-31|1961-06-20|E M P Electric Ltd|Electrical protective equipment|
    DE1189186B|1960-07-06|1965-03-18|Westinghouse Electric Corp|Protection arrangement, especially for surge arresters|
    US3144582A|1960-11-14|1964-08-11|Westinghouse Electric Corp|Lightining arrester|
    DE1289174B|1963-03-08|1969-02-13|Siemens Ag|Surge arresters|
    CH423954A|1965-09-17|1966-11-15|Bbc Brown Boveri & Cie|Surge arresters|
    CH555097A|1972-09-27|1974-10-15|Siemens Ag|METAL ENCLOSED HIGH VOLTAGE SYSTEM WITH AN OVERVOLTAGE ARRANGER.|
    DE2247997C3|1972-09-27|1978-05-11|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Surge arrester with insulating housing|
    CH540579A|1972-12-01|1973-08-15|Sprecher & Schuh Ag|Surge arresters|
    DE2354459A1|1973-10-31|1975-05-15|Transformatoren Union Ag|Surge suppressor with overpressure release and blow off flap - has radial nozzles diametrically opposite with one piece captive flap|
    US3909676A|1974-04-22|1975-09-30|Ite Imperial Corp|Self-operating fault current limiter switch|
    US4015228A|1974-06-10|1977-03-29|Matsushita Electric Industrial Co., Ltd.|Surge absorber|
    JPS6360514B2|1979-01-11|1988-11-24|
    US4318153A|1980-06-09|1982-03-02|Porta Systems Corp.|Sneak current fuse for telephone circuits|
    US4503414A|1983-06-20|1985-03-05|Sykes Huey P|Current interrupting lightning arrester isolator|DE3820272C1|1987-10-20|1989-04-06|Krone Ag, 1000 Berlin, De|
    JPH10214726A|1997-01-28|1998-08-11|Hitachi Ltd|Installation structure of lightening arrester for transformer neutral point|
    GB9717817D0|1997-08-21|1997-10-29|Bowthorpe Plc|Improvements relating to high voltage electric installation|
    RU2595043C2|2010-12-31|2016-08-20|Бриджстоун Корпорейшн|Bulk polymerisation of conjugated dienes using nickel-based catalyst system|
    CN103328519A|2010-12-31|2013-09-25|株式会社普利司通|Bulk polymerization of conjugated dienes using nickel-based catalyst system|
    DE102019207465A1|2019-05-22|2020-11-26|Siemens Aktiengesellschaft|Disconnection device for a surge arrester and arrangement|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19863604785|DE3604785A1|1986-02-13|1986-02-13|METAL-ENCLOSED, GAS-INSULATED HIGH-VOLTAGE SYSTEM WITH AN OVERVOLTAGE ARRESTER|
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