Other

Cooper Power Systems, Inc.

Deborah Lynn Limburg

Gary L Goedde

Jonathan Jay Woodworth

Robert N Schettler

Stanley S Kershaw, Jr

Michael G Marvin

Robert W Smith

An arrester for preventing an insulator supporting a power line from experiencing an electrical flashover comprises an electrode, a varistor, and a separating device. The electrode is spaced apart from the power line or a conductor that is electrically tied to the power line so as to define an external gap therebetween. The separating device, in turn, comprises two portions operative to separate from one another when the varistor experiences an electrical condition sufficient to cause the varistor to fail. The electrode, the external gap, the separating device, and the varistor are arranged in electrical series with one another and in electrical parallel with the insulator.

Externally gapped line arrester

A surge arrester particularly suited for secondary side protection of distribution transformers, includes a low-voltage, high-energy varistor disk having electrodes disposed about its facing surfaces and a self-compressing spring clip with spring arms disposed about the varistor to provide the compressive force necessary to maintain good electrical contact between the electrodes and the varistor. The arrester includes terminals for electrically interconnecting the electrodes with the electrical apparatus being protected by the arrester. The arrester further includes a dielectric coating substantially enveloping the varistor, the spring clip and electrodes. The arrester requires no other housing. The spring arms may be made in a variety of configurations and shapes and may be interlaced with adjacent spring clip and varistor subassemblies so as to form three-phase or other multi-pole arresters. A particular preferred embodiment of a multi-pole arrester includes two or more varistors and a spring clip having a central base member and two spring arms. The spring arms form lobes disposed one on either side of the base member, and the base member and spring arms are all integrally formed from a single piece of material.

Surge arrester with spring clip assembly

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Olean, NY, United States of America

Deborah Lynn Limburg