SURGE PROTECTION DEVICE, COMPRISING AT LEAST ONE SURGE ARRESTER AND ONE SHORT-CIRCUIT SWITCHING DEVICE WHICH IS CONNECTED IN PARALLEL WITH THE SURGE ARRESTER, CAN BE THERMALLY TRIPPED AND IS SPRING-PRETENSIONED

SURGE PROTECTION DEVICE, COMPRISING AT LEAST ONE SURGE ARRESTER AND ONE SHORT-CIRCUIT SWITCHING DEVICE WHICH IS CONNECTED IN PARALLEL WITH THE SURGE ARRESTER, CAN BE THERMALLY TRIPPED AND IS SPRING-PRETENSIONED

The invention relates to a surge protection device, comprising at least one surge arrester and one short-circuit switching device which is connected in parallel with the surge arrester, can be thermally tripped and is spring-pretensioned, wherein the abovementioned means form one physical unit. The...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HIRSCHMANN Helmut, ZAUNER Edmund, WITTMANN Georg
Format: Patent
Sprache:eng ; slv
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:The invention relates to a surge protection device, comprising at least one surge arrester and one short-circuit switching device which is connected in parallel with the surge arrester, can be thermally tripped and is spring-pretensioned, wherein the abovementioned means form one physical unit. The thermal tripping means is arranged in the region where heating of the surge arrester is expected when it is overloaded, and operating or surge current does not flow through said thermal tripping means. The thermal tripping means is in the form of a stop part which releases an unlocking slide of the switching device in the event of thermal overload. The switching device has two opposite contact pieces, wherein at least one of the contacts is of moveable design and is under spring pretension in the closing direction of the switching device. The opening state of the switching device is maintained by the unlocking slide, which is released by the thermal tripping means to close the switching device.