SURGE PROTECTION DEVICE HAVING HIGH BREAKING CAPACITY

A surge protection device with a high breaking capacity includes a housing (1) with at least two lead-out electrodes (10a, 10b), and a voltage limiting device (2) and a thermal tripping mechanism (3) that are installed in the housing (1). The thermal tripping mechanism (3) includes a fixed assembly...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, Xianggui, GAO, Tian'an
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CORONA DEVICES ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS EMERGENCY PROTECTIVE DEVICES GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES GENERATION OVERVOLTAGE ARRESTERS USING SPARK GAPS RELAYS RESISTORS SELECTORS SPARK GAPS SPARKING PLUGS
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Beschreibung
Zusammenfassung:	A surge protection device with a high breaking capacity includes a housing (1) with at least two lead-out electrodes (10a, 10b), and a voltage limiting device (2) and a thermal tripping mechanism (3) that are installed in the housing (1). The thermal tripping mechanism (3) includes a fixed assembly (30), a movable assembly (31), and a thermal trigger device (33). The fixed assembly (30) and the movable assembly (31) form a plurality of displacement switches arranged in series. The thermal trigger device (33) is disposed in linkage with the movable assembly (31). In this way, the present invention resolves problems that a thermal protection device of an existing surge protection device does not have an overcurrent protection function and the thermal protection device is easy to trip by mistake or in advance when a surge current flows through the thermal protection device.