High-voltage switches with arc preventing or extinguishing devices inventions

20080093344 - Electrical switchgear: Electrical switchgear, such as a circuit breaker, must in general provide good dielectric strength in open position in order to avoid discharge. To improve the dielectric strength capacitors are often arranged in parallel between the contacts of the switchgear. For very high voltage applications, for example >500 kV, two circuit... Agent: Lerner Greenberg Stemer LLP

20080087647 - Self-adhesive elastomer layer in circuit-breaker poles insulated by solid material: A circuit-breaker pole insulated by solid material, with an electrically non-conductive and dimensionally stable insulating material housing. An interrupter is disposed in the housing. The interrupter has a fixed contact and a moving contact, which is located opposite the fixed contact on a drive side and is guided in a... Agent: Lerner Greenberg Stemer LLP

20080087648 - Overload and short-circuit protection device with improved breaker capacity: A protective device for an electrical installation, having at least two electrodes between which an elastic arc can electric arc can form, and a device for interrupting (6) the arc, formed by an assembly of divider plates (7) and extending between an upstream end (6A) and a downstream end (6B),... Agent: Powell Goldstein LLP

20080083704 - Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube: In order to reduce the breaking energy of a high-voltage or medium-voltage circuit-breaker, the interrupting chamber (10) contains two contacts (12, 14) mounted to move in opposite directions, and actuated via a single device (20). The two contacts (12, 14) are surrounded by an insulating casing (18) of tubular shape,... Agent: Thelen Reid Brown Raysman & Steiner LLP