• 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:
    An overvoltage arrester wherein the arrester comprises an insulating housing which encloses a body of cast resin in which is embedded a voltage dependent resistor and a first connecting device, a portion of which protrudes from the resin body and extends out of the housing. The arrester is further provided with a spark gap formed as a separate unit and a second connecting device anchored to the spark gap, both of the latter elements also being disposed in the housing.
    公开号:SU927135A3
    申请号:SU782591304
    申请日:1978-03-17
    公开日:1982-05-07
    发明作者:Яксцт Вернер；Райхельт Клаус；Шиле Герт
    申请人:Сименс Аг(Фирма)；
    IPC主号:
    专利说明:

    (5) DISCHARGE FOR PROTECTION AGAINST OVERSTRAINS
    I
    The invention relates to electrical engineering and is intended to protect against overvoltages of electrical machines and transformers.
    Known, in particular, for use in networks with low operating voltages, gaps that have active elements, i.e. the nonlinear resistor and the spark gap are placed in a solidified mass of casting resin, which simultaneously forms the HP case.
    , To manufacture gaps of this form of construction, a mold is required in which the casting mold can be hardened, which is intended to be placed in the shell of the active elements.
    The closest known technical solution to the proposed 20 is an armature for overvoltage protection of electrical machines and transformers, containing an insulating body in the form of a hollow cylinder, into which are inserted a series of 28
    A nonlinear resistor and a multi-gap spark gap, talted between external connection elements projecting from the case, is made with an internal connection element for connecting to the specified resistor, the multi-gap spark gap electrodes together with the corresponding external and internal connecting elements are reinforced in a cylindrical shell of insulating material, the outer the diameter of which corresponds to the internal diameter of the discharge case, and nonlinear re The resistor is installed with a gap in relation to the internal surface of the surge arrester.
    The disadvantage of this discharge is low manufacturability due to the need to use fasteners to install a nonlinear resistor, which also reduces the reliability of centering the discharge gaps in the housing.
    The purpose of the invention is improving the manufacturability of the discharge
    This goal is achieved by the MTS in a well-known surge arrester for electrical machines and transformers containing an insulating body in the form of a canopy of a cylinder, into which a nonlinear resistor and a multi-gap spark gap are connected between consecutive ms of the body and external connecting elements; made with the inner connecting element, let us take the electrodes of the multi gap spark gap together with the corresponding outer and inner connecting edges The elements are reinforced in a cylindrical shell made of lating material, the outer diameter of which corresponds to the inner diameter of the discharge case, and the nonlinear resistor is installed with a gap in relation to the inner surface of the discharge case, the indicated shell of the multi gap spark gap is made of a hardened casting resin, and the nonlinear the resistor is equipped with its own insulating housing with contact elements and leads, and the space remaining in the discharge housing is filled with solidified casting Eva pitch
    As the discharge housing, it is advisable to use a piece of a cylindrical plastic pipe,
    The drawing shows the resolution 5 design.
    The arrester 1 has a hollow cylindrical plastic case 2, inside of which there is a nonlinear resistor 3 and a multi-gap spark gap C,
    The nonlinear resistor 3 is made in the form of a glass-like insulating body 5 in KOTOpcjM resistive element 6 is supported by the tip of th 7 and is connected through a contact disk 8 and conductor E with the lower terminal 10. connected to the inner connecting element 11 of a multi-gap spark gap. k. The upper terminal 12 of the nonlinear resistor 3 is connected to an external connection element 13j threaded H. The resistive element 6 is preferably made of a ceramic-oxide material based on zinc oxide.
    The multi gap spark gap C consists of several series-connected electrodes 15 separated by distance insulating washers 1b ,, Extreme electrodes are connected respectively to the internal connecting element 11 and to the external connecting element 17 s. The threads 18, the electrodes 15 of the washer 16 and the connecting elements P and 17 are enclosed in a sheath of hardened casting resin 19g, the outer diameter of which corresponds to the inner diameter of the case 2 of the bit 1 so that when mounting the bit the spark gap is inserted into the body of the shell 19 certain friction. The space remaining in the housing 2 is filled with a cured cast resin 20, which fixes the non-linear resistor 3 and the connecting elements 11 in the housing 2.
    and 13.
    In the manufacture of arresters taking into account the different quenching voltages, the height of the housing 2 is selected depending on the height of the active elements, i.e. nonlinear resistor 3 and the spark gap k at a constant diameter of the housing 2.
    The proposed arresters can use areas of average operating voltages to protect against overvoltages of the windings of electrical machines, transformers, vacuum switching devices and other similar devices. Due to their small size, arresters can be mounted directly on the protected devices, which ensures protection of these devices already during installation.
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    An overvoltage suppressor for electrical machines and transformers containing an insulating body in the form of a hollow cylinder, into which are inserted sequentially. Included between the external connecting elements protruding from the case and a multi-gap spark gap made with an internal connecting element for connection to a resistor, with the electrodes of a multiple gap spark gap together
    with corresponding external and internal connecting elements are fixed in a cylindrical shell of insulating material, the outer diameter of which corresponds to the internal diameter of the arrester case, and the nonlinear resistor is installed with a gap in relation to the inner surface of the arrester case, characterized in that The indicated shell of the multi gap spark gap is made of cured cast resin, and the nonlinear resistor is equipped with its own insulating block catfish, and the terminal contact elements, and remaining in the arrester housing space is filled with the cured casting resin.
    Sources of information taken into account in the examination
    one . For the application of the Federal Republic of Germany No. 20389 0, cl. 21 p 72, 1972.
    [2]
    2. US patent number 1590 0, to. 175-30, 192.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US4228478A|1980-10-14|
    FR2386923B1|1981-11-06|
    FR2386923A1|1978-11-03|
    DE7711213U1|1977-07-21|
    CH622648A5|1981-04-15|
    NL172905B|1983-06-01|
    NL172905C|1983-11-01|
    JPS53149649A|1978-12-27|
    NL7801722A|1978-10-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1171598A|1910-03-10|1916-02-15|Radio Telephone & Telegraph Company|Spark-gap for radiotone wireless-telegraph systems.|
    US971935A|1910-03-17|1910-10-04|Radio Telephone Company|Spark-gap for radiotone wireless-telegraph systems.|
    US1217452A|1913-03-28|1917-02-27|Westinghouse Electric & Mfg Co|Lightning-arrester.|
    US1590440A|1923-04-03|1926-06-29|Pfiffner Emil|Excess-voltage conductor for high-working voltages|
    US2501322A|1946-11-07|1950-03-21|Westinghouse Electric Corp|Moisture-resistant lightning arrester valve block|
    FR1010294A|1949-02-17|1952-06-09|Oerlikon Maschf|Surge arrester|
    US3035209A|1957-10-11|1962-05-15|Gen Electric|Transformer cover|
    US3018406A|1958-07-17|1962-01-23|Westinghouse Electric Corp|Lightning arrester|
    US3348098A|1965-02-26|1967-10-17|Ohio Crankshaft Co|Surge protector for high frequency power system|
    JPS552539Y1|1969-10-15|1980-01-22|
    US3727108A|1972-02-15|1973-04-10|Kearney National Inc|Surge arrester|
    US3777219A|1972-08-14|1973-12-04|Gen Semiconductor Ind Inc|Electromagnetic pulse suppressor|
    DE2457568B2|1974-12-05|1976-11-18|Siemens AG, 1000 Berlin und 8000 München|OVERVOLTAGE ARRESTER WITH A VOLTAGE CONNECTION SURROUNDED BY INSULATING MATERIAL|
    US4161012A|1977-03-02|1979-07-10|Joslyn Mfg. And Supply Co.|High voltage protection apparatus|US4262317A|1979-03-22|1981-04-14|Reliable Electric Company|Line protector for a communications circuit|
    FR2583590B1|1985-06-12|1987-08-07|Cables De Lyon Geoffroy Delore|DEVICE FOR PROTECTING AN ELECTRICAL ENERGY LINE AGAINST HIGH TRANSIENT OVERVOLTAGES|
    DE3606287A1|1986-02-27|1987-09-03|Dehn & Soehne|Overvoltage protection arrangement|
    FR2726118B1|1994-10-19|1996-12-06|Girard Francois|SURGE PROTECTION DEVICE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19777711213|DE7711213U1|1977-04-06|1977-04-06|SURGE ARRESTERS|
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