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    • 38. 发明公开
    • FUNKENSTRECKENANORDNUNG FÜR HÖHERE BEMESSUNGSSPANNUNGEN
    • FUNKENSTRECKENANORDNUNGFÜRHÖHEREBEMESSUNGSSPANNUNGEN
    • EP2074686A1
    • 2009-07-01
    • EP08831279.8
    • 2008-10-14
    • DEHN + SÖHNE GMBH + CO KG
    • EHRHARDT, ArndWAFFLER, MichaelHIERL, StephanRIEL, Werner
    • H01T4/16
    • H01T4/16
    • The invention relates to a spark gap arrangement for higher rated voltages in which at least two opposite spark gaps comprising electrodes are serially connected and at least one of the spark gaps is introduced actively, i.e., may be triggered, for use as a network arrester that can conduct lightening currents. According to the invention, the spark gaps are located in a pressure-resistant capsule with at least one pressure compensation opening. Also, an insert that bridges the distance between the main electrodes of the passive spark gaps, consisting of a low-impendence material, is provided. Said low impendence material is extremely non-linear in relation to the decreasing residual voltage in the event of a current load.
    • 用于较高额定电压的火花隙装置技术领域本发明涉及一种用于较高额定电压的火花隙装置,其中包括电极的至少两个相对的火花隙串联连接并且主动引入至少一个火花隙,即可以触发,以用作网络避雷器, 可以产生轻微的电流。 根据本发明,火花隙位于具有至少一个压力补偿开口的耐压容器中。 此外,还提供了一个桥接由低阻抗材料组成的无源火花隙主电极之间的距离的插件。 所述低阻抗材料相对于在电流负载情况下递减的剩余电压是非常非线性的。
    • 39. 发明公开
    • GEKAPSELTE, DRUCKFEST AUSGEFÜHRTE, NICHT HERMETISCH DICHTE, ROTATIONSSYMMETRISCHE HOCHLEISTUNGSFUNKENSTRECKE
    • 封装压力执行,而不是密封严密,旋转对称的高性能射频LINK
    • EP1966860A1
    • 2008-09-10
    • EP07847654.6
    • 2007-12-03
    • DEHN + SÖHNE GMBH + CO KG
    • EHRHARDT, ArndWAFFLER, MichaelHIERL, Stephan
    • H01T4/10
    • H01T4/10
    • The invention relates to an encapsulated, pressure-proof, non-hermetically sealed, rotationally symmetrical high-power spark gap comprising two main electrodes positioned opposite one another at a distance, a cylindrical metallic outer housing, a gas or plasma cool-off chamber surrounded by the outer housing and connection contacts for the main electrodes, which contacts are preferably arranged on the front face. The cool-off chamber consists of a coaxial cup-shaped arrangement with an interposed meandering cooling channel. One of the main electrodes is configured as a hollow-cylindrical expulsion electrode the lateral openings of which extend into the cool-off chamber. The cooling channel comprises a plurality of independent vent openings or communicates with such openings. The invention is characterized in that a first vent opening communicates directly with the base of the arc channel, said vent opening being configured by a threaded section or a bore of one of the connection contacts. The other vent openings are located in zones where cooled gases are present which have been cooled by deviation and heat-exchanging contact with the cup-shaped arrangement. The cross-sectional area of the lateral openings of the expulsion electrode is larger than the cross-sectional area of the arc formation chamber, thereby reducing electrode consumption.
    • 40. 发明公开
    • ÜBERSPANNUNGSSCHUTZEINRICHTUNG FÜR DEN EINSATZ IN GLEICHSTROMNETZEN, INSBESONDERE FÜR PHOTOVOLTAIKANLAGEN
    • 浪涌保护设备中使用的直流输入网络,特别是光伏系统
    • EP1961096A1
    • 2008-08-27
    • EP07822072.0
    • 2007-10-31
    • DEHN + SÖHNE GMBH + CO KG
    • EHRHARDT, ArndKÖNIG, RaimundHOHENWALD, Wilhelm
    • H02H9/04H02H9/06
    • H02H9/043H02H9/06
    • The invention relates to an overvoltage protective device for use in direct-current power supply systems, in particular for photovoltaic systems having a first output path and a second triggerable output path, whose energy levels are coordinated in parallel, and which each have a different response to disturbance events and overvoltages. According to the invention, the first output path has at least one varistor whose residual voltage value is recorded and is passed to a control circuit in order to determine the energy load on the first output path. The second output path has at least one triggerable spark gap, whose trigger input is connected to a first output of the control circuit. A third branch is connected in parallel with the first and the second output paths as a commutation and quenching path, which contains a short-circuiting switch, comprising at least one power transistor, whose control input is connected to a second output of the control circuit. The second output path of the spark gap is activated via the control circuit only when there is an expectation of energy overloading of the first output path, identified on the basis of the residual voltage monitoring. For effective suppression of consequential current in the power supply system, the short-circuiting switch in the third branch is closed for a predetermined time interval after a delay time has elapsed, calculated from the response of the spark gap in the second output path.