公开(公告)号：US3566197A

公开(公告)日：1971-02-23

申请号：US3566197D

申请日：1968-10-28

Applicant: ASEA AB

Inventor： NILSSON ERLAND ,  SCHEI ASLE

IPC: H01T4/10 ,  H01T4/16 ,  H02H3/20 ,  H02H7/085 ,  H02H7/24 ,  H02H9/06 ,  H02H3/22

CPC classification number: H02H7/085 ,  H01T4/16 ,  H02H9/06

Abstract: An overvoltage protection device consists of a number of parallel connected columns containing nonlinear resistance stacks between upper and lower spark gap stacks. The spark gap stacks provide arc extension by magnetic effect. Cross-impedances are arranged between the columns for transferring ignition pulses. The spark gaps, nonlinear resistors and connecting members for the cross-impedances are so dimensioned and arranged that the impedance increase of a column after ignition in comparison with the impedance increase of one or more subsequent ignited columns is so great that the current through the first column is less than a value corresponding to its lowest current carrying voltage. The cross-impedances may be connected between the bottom of an upper spark gap stack and the top of a lower spark gap stack.

公开(公告)号：US3662215A

公开(公告)日：1972-05-09

申请号：US3662215D

申请日：1971-03-25

Applicant: ASEA AB

Inventor： SCHEI ASLE

IPC: H02M9/04 ,  B65G25/02 ,  H01T4/16 ,  H02H9/06 ,  H05B37/00 ,  H05B39/00

CPC classification number: H01T4/16 ,  B65G25/02 ,  H02H9/06

Abstract: A chain of series-connected spark gap piles have two grading chains in parallel therewith with connections therebetween. An arrangement is provided for triggering one of the spark gap piles. When this pile is triggered, all the spark gap piles in the chain spark over if the voltage over the spark gap piles between two connections from a grading chain is not less than the spark-over voltage for each of these piles. One grading chain is formed of a number of resistors and capacitors in parallel connected across each end gap pile and each pair of other gap piles, and the other grading chain is formed of resistors in the chain between the pairs of gap piles and circuits formed of a capacitor and a resistor in parallel with each pair of gap piles.

Abstract translation: 串联连接的火花隙桩具有与其平行的两个分级链，其间具有连接。 提供了用于触发火花塞桩之一的装置。 当桩被触发时，如果从分级链的两个连接点之间的火花间隙上的电压堆积在这些桩中的每一个上的火花塞电压不小于链中的所有火花隙桩。 一个分级链由多个电阻器和电容器组成，并联连接在每个端部缝隙桩和每对其它间隙桩上，另一个分级链由链中的电阻器形成，间隙桩和电路对由 电容器和与每对间隙堆并联的电阻器。