Quality Switch, Inc.

Carte International Inc.

Jeremy Sewell

Larry Dix

Adam Sewell

Joseph H Groeger

Brian Klaponski

Garth Norberg

Douglas L Senne

Thomas H Davis

Frank D Depuy

Ralph Wegner

Dan Schwartz

Doug Senne

Frank DePuy

Frank Depuy

A network service and transformer safety protector on a secondary side of a network transformer tank system. The network service and transformer safety protector is positioned between the network transformer and a secondary network distribution system and is configured to connect and disconnect a transformer from the secondary network. The network service and transformer safety protector is attached to the outside of the transformer tank.

Network service and transformer safety protector

A controllable primary switch for isolating a transformer from a power grid or network. The controllable primary switch is mountable within and integral to the transformer and is electrically connected to high voltage feeder cables to allow the transformer to be disconnected from the power grid or network. The controllable primary switch includes one or more vacuum interrupters having first and second electrical switch contacts mounted inside the casing, an actuator for moving the second switch contact relative to the first switch contact in each of the one or more vacuum interrupters, and a handle connected to the actuator. The handle engages the actuator to move the second switch contact relative to the first switch contact.

Intra-tank under-oil vacuum primary switches for medium voltage transformer applications

The present invention is directed to a safety system integrated into a liquid-insulated high voltage network grounding switch, including modifications to the switch structure to provide an arrangement that is more efficiently installed with greater precision than found in conventional arrangements. The result is a switch assembly that adheres to updated IEEE/ANSI Standards, while still fitting into existing vault space meant to accommodate earlier switch gear.

Safety system for high voltage network grounding switch

Growing community of inventors

Southington, OH, United States of America

Jeremy Sewell