Abb Power Td & Company

Abb Inc.

Frank D Wolfe

John B Baskin

Edgar R Eley

Stephen A Perkins

John F Cotton

James R Scrivener

John N Powell

Ralph S Averitt

Marty C Brasher

Juan L Santana

A fuse housing assembly is disclosed that includes a rate release plug that prevents the emission of large quantities of dielectric oil from a transformer tank upon removal of a fuse holder from a bayonet-type fuse holder. The rate release plug allows pressurized gas inside the tank to escape while at the same time, impeding the flow of dielectric oil out of the tank.

Fuse housing with rate release control plug

A de-energized tap changer is disclosed that includes a contact rail assembly, a gear assembly, a handle assembly and a transmission system that compensates for angular misalignment of the gear assembly and handle assembly. The transmission system includes two elongated members with attached blocks that fit inside a hollow tube and when the handle of the de-energized tap changer is rotated, torque is transmitted through the transmission system to the gear assembly which drives the movable contacts.

De-energized tap changer

Growing community of inventors

Jackson, TN, United States of America

Frank D Wolfe