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    • 3. 发明申请
    • IGNITION CIRCUIT
    • 点火电路
    • US20150288176A1
    • 2015-10-08
    • US14440555
    • 2013-11-08
    • PHOENIX CONTACT GMBH & CO. KG
    • Rainer DurthMario Stolzenberg
    • H02H9/06H01T4/16H01T1/16H01T2/02
    • H02H9/06H01C7/10H01C7/12H01T1/16H01T2/02H01T4/16
    • The object of the invention is an ignition circuit for a series connection of at least two spark gaps for limiting overvoltages with medium and high power, particularly overvoltages corresponding to pulse shapes 8/20 μs and 10/350 μs with amplitudes of about 10 kA to about 200 kA (class I arrester). The spark gaps are each equipped with at least one auxiliary electrode. The ignition circuit has a first varistor and a second varistor, with the ignition circuit being particularly suited to limiting overvoltages with medium power, particularly overvoltages corresponding to pulse shape 8/20 μs with amplitudes of about 10 to about 100 kA (class II arrester). The ignition circuit is designed to be connected to the auxiliary electrodes, with the ignition circuit Z having two ignition subcircuits. The first ignition subcircuit TZ1 has the first varistor VAR1 and is designed to ignite the first spark gap. The second ignition subcircuit has the second varistor and is designed to ignite the second spark gap. Further objects of the invention are an overvoltage protection device with this kind of ignition circuit, as well as the use of a multi-contact varistor for triggering a spark gap.
    • 本发明的目的是用于串联连接至少两个火花隙的点火电路,用于限制具有中等功率和高功率的过电压,特别是对应于脉冲形状8/20μs和10/350μs的过电压,幅度约为10kA至 约200 kA(I级避雷器)。 火花隙各配有至少一个辅助电极。 点火电路具有第一变阻器和第二变阻器,其中点火电路特别适用于以中等功率限制过电压,特别是对应于具有约10至约100kA(II类避雷器)幅度的脉冲形状8/20μs的过电压, 。 点火电路被设计成连接到辅助电极,点火电路Z具有两个点火子电路。 第一点火辅助电路TZ1具有第一变阻器VAR1,并被设计成点燃第一火花隙。 第二点火辅助电路具有第二变阻器,并被设计成点燃第二火花隙。 本发明的另外的目的是具有这种点火电路的过电压保护装置,以及使用多点接触压敏电阻来触发火花隙。