SU1690022A1

SU1690022A1 - Automatic switch

Info

Publication number: SU1690022A1
Application number: SU894680429A
Authority: SU
Inventors: Александр Сергеевич Кобозев; Виктор Матвеевич Гайдаенко; Геннадий Николаевич Гапоненко; Геннадий Феодосьевич Мицкевич; Вячеслав Николаевич Постольник; Игорь Николаевич Недайвода
Priority date: 1989-04-18
Filing date: 1989-04-18
Publication date: 1991-11-07

Abstract

Изобретение относитс к-низковольтным электрическим коммутационным аппаратам . Выключатель имеет корпус 23, механизм управлени , содержащий в каждом полюсе подвод щие зажимы 1, отвод щие зажимы 2, дугогасительные камеры, участок токопровода 3 с расположенным на нем расцепителем максимального тока 4, контактную систему, быстродействующий привод, гибкий проводник 10, дополнительный токопровод 18. Подвижный контакто- держатель 9 подсоединен к участку токопровода 3, другой конец токопровода А подсоединен к отвод щему зажиму 2. Неподвижный контактодержатель 5 снабжен электродинамическим узлом разведени контактов. Механизм управлени включает систему ломающихс рычагов 12, пружины 13, руко тку 14, рычаг зацеплени 15, промежуточную скобу 16, упертую в отключающуюс рейку 17. При возникновении в цепи короткого замыкани выключатель осуществл ет защиту сети избирательно в зависимости от величины тока КЗ и участка цепи, в котором произошло замыкание. 1 з.п. ф-лы, 3 ил. (Л сThis invention relates to low-voltage electrical switching devices. The switch has a housing 23, a control mechanism containing in each pole supply terminals 1, discharge clamps 2, arcing chambers, section of conductors 3 with an overcurrent release 4 located on it, contact system, high-speed drive, flexible conductor 10, additional conductors 18 The movable contact-holder 9 is connected to the section of the conductor 3, the other end of the conductor A is connected to the discharge terminal 2. The fixed contact holder 5 is equipped with an electrodynamic contact separation unit. The control mechanism includes a system of breaking levers 12, springs 13, handle 14, gearing lever 15, intermediate bracket 16 resting on a disconnecting rail 17. When a short circuit occurs in a circuit, the switch protects the network selectively depending on the magnitude of the short-circuit current and the circuit portion in which the closure occurred. 1 hp f-ly, 3 ill. (L with

Description

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Claims

Claim

1. An automatic switch having a housing, a control mechanism comprising in each pole inlet and outlet clamps, an arcing chamber, a bus with an overcurrent release located on it, a contact system consisting of a movable and fixed contact holders with corresponding contacts, and the movable contact holder by means of a flexible the conductor is connected to one of the ends of the bus on which the overcurrent release is located, the second end of the specified bus is connected to the outlet terminal 7, and epodvizhny contact carrier is provided with a current limiter. characterized in that, in order to expand the operational capabilities of the circuit breaker by ensuring selectivity of protection. 5, a high-speed drive is introduced into it and at each pole an additional current lead, one end of which is connected to the bus at the junction of its flexible conductor with a fixed contact holder, an additional fixed contact is installed at the second end of the additional current lead, an additional introduced movable contact is installed on the moving part of the high-speed drive moreover, additional movable contacts of all poles are electrically interconnected.

2. The circuit breaker as claimed in Claim 1, wherein, in order to reduce the power of the high-speed drive of additional contacts, the current path of the additional contacts is made in the form of an electrodynamic compensator for the rejection of contacts.