Accession Number : ADD001161

Title :   Method of Reducing Solid Arcing Product Build-up Between Electrical Contacts in Pressurized Fluid Ambients.

Descriptive Note : Patent,


Personal Author(s) : Pocock,Walter E

Report Date : 28 Jun 1974

Pagination or Media Count : 6

Abstract : The patent describes a method of substantially reducing the build-up of solid arcing products between contacts for making and breaking electrical circuits. This includes the steps of adjusting the contacts to an arbitrary opening distance at which arcing will occur, placing the contacts in the dielectric fluid under greater than atmospheric pressure, opening and closing the contacts at a fixed operating circuit voltage to determine if the solid arcing product build-up forms, and readjusting the contact opening distance to minimize the value of the parameter (V/N) to the 2nd power/d where V is the operating circuit voltage, N is the number of sets of serially connected contacts and d is the distance between the contacts when in the fully open position. The value of the parameter may be further reduced by distributing V across a plurality of sets of such contacts connected in series and provided to be simultaneously actuated.

Descriptors :   *Electric switches, *Electric contacts, *Patents, Electric arcs, Dielectrics, Fluids, Pressure, Deep submergence

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE