electricalscho

A measure of an electrical device’s ability to withstand high-voltage or high-frequency transients of short duration without damage.

Also known as a split conductor. Historically bushings offered a draw lead rating of 400 amps, but by using Trench’s split conductor in COTA bushings the draw leads now have ratings of 3,000 amps.

A very dense, inert, non-conducting gas used inside high voltage equipment to insulate conducting components from surfaces at ground potential. It also is used as an interrupting medium in high voltage circuit breakers.

The formation of lead sulfate of such physical properties that it is extremely difficult, if not impossible, to reconvert it to active material.

A high voltage system that takes power from the highest voltage transmission system, reduces it to a lower voltage for more convenient transmission to nearby load centers, delivering power to distribution substations or the largest industrial plants. Typi