Multi spot spark triggering surge protector

Abstract

The invention discloses a multi-spot spark triggering surge protector, which comprises a multi-spot spark triggering circuit, a main circuit, a built-in arc extinguishing system and a pressure resistance module, wherein an igniting unit group of the multi-spot triggering circuit, an electrode of the main circuit and an arc-extinguishing chamber of the built-in arc extinguishing system are positioned in the same inner space which is limited by an insulating casing. The technical proposal of the multi-spot spark triggering surge protector can realize the possibility that the large negotiability is combined with the high continued flow breaking capacity when distinctively reduces voltage protecting level simultaneously.

Description

technical field [0001] The invention relates to the technical field of surge protection for low-voltage electrical equipment, and more specifically relates to a multi-point spark-triggered surge protector. Background technique [0002] The damage caused by lightning and other strong interference to electronic information systems and the resulting consequences are serious. Therefore, the development of lightning protection technology has become the main force to solve harmful overvoltages. Lightning is composed of high-energy low-frequency components and very permeable high-frequency components. It mainly adopts two forms, one is the lightning pulse directly transmitted through the metal pipeline or the ground wire; the other is the lightning electromagnetic pulse of the lightning channel and the leakage channel induces the metal pipeline or the ground wire to generate a surge through various coupling methods Overvoltage. For electronic information equipment, the hazard mai...

AI Technical Summary

Problems solved by technology

[0007] Among the known overvoltage protection devices, everyone pays more attention to the ability of surge protectors to respond to lightning pulses, and various auxiliary triggering technologies have been developed for this purpose; the typical ones are capacitor network and transformer electronic triggering technologies. The application of these technologies, It is a great technological leap for the air-gap type surge protector, but there are still some problems: such as using the capacitive network trigger technology, the voltage protection level is still higher than that of the general voltage-limiting surge protector, and the trigger circuit is complicated ;Transformer electronic trigger technology uses a pulse transformer as a key ignition device, which cannot guarantee stable trigger performance due to the defect of one-time pulse ignition characteristics, and these technologies cannot solve the problem of freewheeling disconnection capability

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