Double-trigger air-blast arc-extinguishing lighting protection device
A dual-trigger, jet airflow technology, applied in the direction of electrical components, insulators, circuits, etc., can solve the problems of high overvoltage of inductive objects, fast use of arc extinguishing gas pills, and incomplete recovery, etc., to achieve reliable and convenient reading, Strong arc extinguishing ability and simple structure
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[0035] Example 1:
[0036] Such as figure 1 As shown, a dual-triggered jet airflow arc extinguishing lightning protection device is mainly composed of a lightning arrester shell 1, an arc striking rod 4, an induction coil 5, an arc extinguishing cylinder 3 and an upper cover 2; among them: in the lightning arrester The left and right sides of the shell 1 are also provided with an arc extinguishing turntable I6 and an arc extinguishing turntable Ⅱ13 respectively; the gas pill trigger position I and the gas pill trigger position II are set at the central position inside the shell 1 of the lightning arrester, and the gas pill An arc extinguishing cylinder 3 is installed below the trigger position I and the gas pill trigger position II; the edge of the gas pill trigger position I is provided with a clamping rod I9, and the gas pill trigger position II is provided with a clamping rod II 10 at the edge; The upper center position of the arc extinguishing turntable I6 is connected to the...
Example Embodiment
[0038] Example 2:
[0039] The difference between this embodiment and embodiment 1 is only: image 3 As shown, the trigger delay element adopts an inductor, and the inductor is connected in series with the arc-extinguishing gas pill II in the gas pill trigger position II and connected in the trigger circuit II.
Example Embodiment
[0040] Example 3:
[0041] The difference between this embodiment and embodiment 1 is only: Figure 4 As shown, the trigger delay element adopts a spark gap, and the spark gap is connected in series with the arc-extinguishing gas pill II in the gas pill trigger position II and connected in the trigger circuit II. The spark gap is formed by stamping a brass plate with metal electrodes at both ends, and the metal electrodes are separated by mica washers to form an air gap. The air gap electric field is similar to a uniform electric field.
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