Vacuum alternating-current contactor for mechanical emergency

A technology of AC contactor and emergency action, which is applied to high-voltage air circuit breakers, high-voltage/high-current switches, electrical components, etc., can solve problems not mentioned, and achieve the effect of increasing synchronization

Inactive Publication Date: 2016-02-24
CHENZHOU DONGTANG ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This provision is interpreted as: as long as the power supply is normal, it can be forced to start regar

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  • Vacuum alternating-current contactor for mechanical emergency
  • Vacuum alternating-current contactor for mechanical emergency
  • Vacuum alternating-current contactor for mechanical emergency

Examples

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[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] A vacuum AC contactor capable of mechanical emergency action, which is composed of an insulating power isolation frame 1, a metal back sealing plate 2, an electromagnetic operating mechanism, a manual operating mechanism and a vacuum switch tube component 3. The electromagnetic operating mechanism has a closing and holding The gusset 4, the driving arm 5, the closing armature 6, the closing coil 7, the opening coil and the opening spring 8. Among them, the inflection point of the driving arm 5 is installed on the closing shaft 9, and one of the driving arm 5 The arm is the closing armature 6, the end of the arm tightly presses the opening spring 8, and the other arm is connected to the moving contact of the vacuum switch tube component 3; there is a closing coil 7 under the closing armature 6; the closing retaining plate 4 has a buckle at one end The plate tensi...

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Abstract

The invention relates to a vacuum alternating-current contactor for mechanical emergency. The vacuum alternating-current contactor is composed of an insulated electrical isolation framework, a metal rear sealing plate, an electromagnetic operating mechanism, a manual operating mechanism and a vacuum switching tube; the electromagnetic operating mechanism is provided with a closing keeping buckle plate, a transmission crank arm, a closing armature, a closing coil and an opening spring; a counterbore is formed close to the edge in the longitudinal center of the closing armature, and the metal rear sealing plate is provided with a through hole opposite to the counterbore; a long pull rod penetrates through the through hole in the metal rear sealing plate, the capped portion of the long pull rod is connected with the counterbore of the closing armature, and the tapping portion of the long pull rod is connected with an L-shaped pull hook of a linkage rod of the manual operating mechanism. When a secondary control circuit fails or an electromagnetic coil of a vacuum switch is damaged, a fire-fighting water pump and a hydrant can be manually started for emergency by adopting the vacuum alternating-current contactor.

Description

technical field [0001] The invention relates to a contactor device, in particular to a vacuum AC contactor capable of mechanical emergency action. Background technique [0002] Vacuum AC contactors are widely used in coal mines, electric power, metallurgy, textiles, high-rise buildings and other industries. It is composed of insulating frame, metal base, transmission arm, electromagnetic system and vacuum switch tube. When the electromagnetic coil passes the control voltage, the armature drives the arm to rotate, so that the main contact in the vacuum switch tube is connected, and the electromagnetic coil is turned off. After power on, due to the action of the opening spring, the main contacts are broken. Vacuum AC contactor is suitable for AC: 50Hz. Rated voltage: 1140V, rated current 63 to 400A feed network, control voltage: AC220V for long-distance switching on and off, and frequent starting and stopping of AC motors. However, when this kind of vacuum contactor is used ...

Claims

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Application Information

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IPC IPC(8): H01H33/666
CPCH01H33/666
Inventor 谭珍忠曾凡明王芳蔡广林谭檐鹏
Owner CHENZHOU DONGTANG ELECTRIC EQUIP
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