Abb Schweiz Ag

Abb Technology Ag

Abb Inc.

Willie Freeman

Jeffry R Meyer

Sushil A Shinde

Arnold P Vitols

Gary Hammack

Corey J Stanko

Thomas D Shively

Caroline Komlenic

Aftab H Khan

Surge arrester structure is provided for a dead tank circuit breaker. The circuit breaker has a pole assembly with a first electrical terminal in a first bushing, and a second electrical terminal in a second bushing. The first terminal is electrically connected to a stationary contact and the second terminal is electrically connected to a movable contact. The surge arrester structure includes a surge arrester having first and second opposing ends. A first conductor structure electrically and mechanically connects the first end of the surge arrester with an end of the first terminal. A second conductor structure electrically and mechanically connects the second end of the surge arrester with an end of the second terminal. The surge arrester is electrically connected parallel with respect to the stationary and movable contacts so that the surge arrester can limit transient over voltages occurring across the contacts when the contacts are open.

Dead tank circuit breaker with surge arrester connected across the bushing tops of each pole

An apparatus is provided for monitoring the fluidic contents of a tank. The tank includes a quick disconnect valve and an assembly includes a monitor device, such as, for example, a gas density monitor, a pressure monitor, a temperature monitor, etc., and a quick disconnect fitting. The monitor device is coupled to the quick disconnect fitting. The quick disconnect fitting is adapted to couple to the quick disconnect valve such that the interior of the quick disconnect fitting is in fluidic communication with the interior of the monitor device for reducing the chance of leakage upon connection/disconnection.

Low leak gas density monitor assembly

A switching device facilitates access, repair, maintenance of the device during operation in a electrical substation, and minimizes real estate and equipment in the electrical substations. The device integrates air disconnect switches, preferably mounted atop each bushing. The device further comprises wheels, a removable rail system, and a staggered height arrangement of the switches on the bushing to allow translation of the device from a first position to an electrically isolated second position.

Dead tank drawout breakers

Growing community of inventors

Irwin, PA, United States of America

Willie Freeman