RU95111261A - D c contactor with arcless commutation - Google Patents

D c contactor with arcless commutation

Info

Publication number
RU95111261A
RU95111261A RU95111261/07A RU95111261A RU95111261A RU 95111261 A RU95111261 A RU 95111261A RU 95111261/07 A RU95111261/07 A RU 95111261/07A RU 95111261 A RU95111261 A RU 95111261A RU 95111261 A RU95111261 A RU 95111261A
Authority
RU
Russia
Prior art keywords
thyristor
capacitor
contactor
resistor
contact
Prior art date
Application number
RU95111261/07A
Other languages
Russian (ru)
Inventor
В.Л. Лотоцкий
С.В. Лотоцкий
Original Assignee
В.Л. Лотоцкий
С.В. Лотоцкий
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by В.Л. Лотоцкий, С.В. Лотоцкий filed Critical В.Л. Лотоцкий
Priority to RU95111261/07A priority Critical patent/RU95111261A/en
Publication of RU95111261A publication Critical patent/RU95111261A/en

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

FIELD: electrical engineering. SUBSTANCE: D. C. contactor is fitted with device for arcless opening of main contact 2 thanks to shunting it with key thyristor 3 unbalanced at initial moment of break of contact with the aid of starting circuit composed of capacitor 9 and diode 10. Turn-off of thyristor 3 is provided by unit of forced communication including commutating thyristor 4 and capacitor 5. Capacitor 5 is changed with the help of changing circuit incorporating thyristor 6 and resistor 7. Thyristor 6 is controlled by network including resistor 17, capacitor 18 and limit switch 19 mechanically coupled to mobile part of contactor which are connected in series. EFFECT: enhanced functional reliability of contactor. 1 cl, 1 dwg

Claims (1)

Контактор постоянного тока снабжен устройством для бездугового размыкания главного контакта благодаря шунтированию его основным тиристором отпираемого в начальный момент размыкания контакта с помощью пусковой цепочки, состоящей из конденсатора и диода. Запирание тиристора обеспечивается блоком принудительной коммутации, включающим коммутирующие тиристор и конденсатор. Конденсатор заряжается при помощи зарядной цепи, состоящей из тиристора и резистора. Тиристор управляется цепочкой последовательно соединенных элементов: резистора, конденсатора и концевого переключателя, механически связанного с подвижной частью контактора.The DC contactor is equipped with a device for arc-free opening of the main contact by shunting it with the main thyristor of the contact, which is unlocked at the initial moment of opening, by means of a starting circuit consisting of a capacitor and a diode. The thyristor is locked by a forced switching unit, including the switching thyristor and capacitor. The capacitor is charged using a charging circuit consisting of a thyristor and a resistor. The thyristor is controlled by a chain of series-connected elements: a resistor, a capacitor and an end switch mechanically connected to the moving part of the contactor.
RU95111261/07A 1995-06-29 1995-06-29 D c contactor with arcless commutation RU95111261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95111261/07A RU95111261A (en) 1995-06-29 1995-06-29 D c contactor with arcless commutation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95111261/07A RU95111261A (en) 1995-06-29 1995-06-29 D c contactor with arcless commutation

Publications (1)

Publication Number Publication Date
RU95111261A true RU95111261A (en) 1997-04-27

Family

ID=48434024

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95111261/07A RU95111261A (en) 1995-06-29 1995-06-29 D c contactor with arcless commutation

Country Status (1)

Country Link
RU (1) RU95111261A (en)

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