Hubbell Limited

Harvey Hubbell Incorporated

Dennis Wilbur Lenk

Xingniu Huo

John A Krause

Craig S Hunsicker

Bo Gao

Viorel Berlovan, Jr

John D Sakich

Michael Geoffrey Comber

Randall K Niedermier

Saroni Brahma

Hongsheng Guo

Zhuo-hua Ma

Hong-sheng Guo

Hong-Sheng Guo

Craig Hunsicker

Zhuo-Hua Ma

The present disclosure provides insulating covers for mounting brackets used to secure arrester assemblies to transformers. The purpose of the insulating cover is to protect wildlife from electric shock, and to prevent power interruptions on high voltage distribution lines caused by the bridging of high voltage circuits by wildlife.

Insulating cover for transformer brackets

A gap assembly for a arrester includes a spark gap assembly and an MOV block disposed electrically in series with the spark gap assembly. The spark gap assembly includes a resistor, a capacitor disposed electrically in series with the resistor and a spark gap disposed electrically parallel to the resistor and to the capacitor.

Series R-C graded gap assembly for MOV arrester

A disconnector assembly is provided for an arrester. A non-conductive housing has first and second opposite ends separated by an internal chamber. A first electrical terminal is connected at the first end. A second electrical terminal is connected at the second end. A capacitor engages and extends between the first and second terminals in the internal chamber. A sparkgap is electrically parallel the capacitor between the first and second terminals. A cartridge with an explosive charge is positioned in the internal chamber, and the cartridge is electrically parallel the capacitor and electrically in series with the sparkgap.

Arrester disconnector assembly having a capacitor

A disconnector assembly is provided for an arrester. A non-conductive housing has first and second opposite ends separated by an internal chamber. A first electrical terminal is connected at the first end. A second electrical terminal is connected at the second end. A capacitor assembly engages and extends between the first and second terminals in the internal chamber. The capacitor assembly includes a capacitor and a resistor electrically connected in series. A sparkgap is electrically parallel the capacitor assembly between the first and second terminals. A cartridge with an explosive charge is positioned in the internal chamber, and the cartridge is electrically parallel to the capacitor assembly and electrically in series with the spark gap.

Arrester disconnector assembly having a capacitor and a resistor

An assembly is provided having a core and a housing. The housing has an internal passageway extending from a first housing end to a second housing end for receiving the core. A coating of an uncured moisture activated material is disposed between the housing and the core. The coating cures upon reacting with moisture penetrating the housing to reseal the housing at a point of moisture penetration. The material cross-links in the presence of the moisture, thereby bonding with the moisture to prevent the moisture from contacting the core. The cured material is a rubber-like substance that adheres to the housing and to the core, thereby resealing the housing at the point of moisture penetration.

Moisture activated barrier for electrical assemblies

A modular electrical assembly is enclosed in an elastomeric weathershed housing, and has a plurality of electrical components and end terminals aligned in a column and in electrical connection with one another via their axially-directed ends and under an axially-directed compressive force via a non-conductive filament winding. The filament winding defines a crisscross pattern with lateral openings for venting gas upon failure of one of the electrical components. The openings can be filled with fracturable epoxy or other insulating materials. Each end terminal has an electrically conductive part with a radially extending flange at its inner end, and an electrically insulative part mounted over the electrically conductive part and engaging the flange.

End terminals for modular electrical assemblies with pressure relief

An arrester support and disconnector structure enclosed, in one embodiment, a cylindrical housing having a lower wall with a weakened zone. Electrically conductive members extend through the upper and lower walls of the housing and make electrical connection with the arrester and a ground wire, respectively. Between the conductive members is an explosive charge which is detonated by the passage of excess current, thereby removing the lower member. The cylindrical body has an exterior recess to receive a supporting strap. In another embodiment, the support structure includes an elongated nonconductive body mounted at one end to a conventional support bracket. At the other end an upper surface supports an arrester and a housing below that surface contains the disconnector, again containing upper and lower conductive members with an explosive charge therebetween. The housing surrounding the conductive members has a weakened zone which is separated when the charge is detonated by excessive current. After detonation of the explosive charge which removes the arrester ground lead in each embodiment, the arrester will still be mechanically supported by the remaining intact section of nonconductive bracket, the contour of which provides sufficient insulating strength between the energized base of the failed arrester and the grounded bracket to allow the arrester to remain energized without causing a system outage.

Growing community of inventors

Medina, OH, United States of America

Dennis Wilbur Lenk