Всесоюзний Науково-Дослідний Проектно-Конструкторський І Технологічний Інститут Вибухозахищеного І Рудничного Електрообладнання
Всесоюзный Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Силовых Полупроводниковых Приборов
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Application filed by Всесоюзний Науково-Дослідний Проектно-Конструкторський І Технологічний Інститут Вибухозахищеного І Рудничного Електрообладнання, Всесоюзный Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Силовых Полупроводниковых ПриборовfiledCriticalВсесоюзний Науково-Дослідний Проектно-Конструкторський І Технологічний Інститут Вибухозахищеного І Рудничного Електрообладнання
Priority to UA4205442ApriorityCriticalpatent/UA16343A1/en
Publication of UA16343A1publicationCriticalpatent/UA16343A1/en
The AC commutation device comprises a movable bridge contact bracket with contact faceplates, two immovable C-shaped contact brackets with contact faceplates, iron-core clamps electrically connected with immovable contact brackets and contact faceplates seized the contact brackets from three sides and arcquenching grids placed near each contact discontinuity. With the purpose of reduction of contact material cutting by weight reduction and acceleration of arc vanishing contact faceplates, it is equipped with U-shaped ferromagnetic clamp. The clamp is placed on the contact bracket so that it bears against nonworking bridge area and clasps it along with contact faceplates from five sides. The ferromagnetic clamp of the immovable contact bracket is arranged as four-wall case and clasps the immovable contact bracket along with contact faceplates from four sides.