Contact collision buffer device and sulfur hexafluoride circuit breaker using the device

A buffer device and circuit breaker technology, which is applied to high-voltage air circuit breakers, contact vibration/shock damping, circuits, etc., and can solve problems such as damage to circuit breaker components

Active Publication Date: 2021-05-28
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a contact collision buffer device to solve the problem that the components of the circuit breaker are easily damaged when the resistance moving and static contacts in the sulfur hexafluoride circuit breaker collide; the object of the present invention is also To provide a sulfur hexafluoride circuit breaker using the device

Method used

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  • Contact collision buffer device and sulfur hexafluoride circuit breaker using the device
  • Contact collision buffer device and sulfur hexafluoride circuit breaker using the device
  • Contact collision buffer device and sulfur hexafluoride circuit breaker using the device

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Embodiment Construction

[0019] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] A specific embodiment of the contact collision buffer device of the present invention, such as Figure 1 to Figure 4 As shown, it includes a guide seat 1 and a guide rod 2 for the contact that is installed on the guide seat. The left end of the guide rod 2 for the contact is used for the installation of the static contact 3, and the static contact 3 is fixed on the guide rod 2 for the contact. Above; the guide rod 2 for the contact is equipped with a spring 4, the guide rod 2 for the contact is provided with a stop platform for cooperating with the spring 4, and the right end of the guide seat 1 is provided with a spring installation for the spring 4 There is a bushing 11 in the spring installation groove, and a step groove is arranged on the bushing 11. The guide seat 1 and the spring 4 are separated by the bushing 11, and the spring 4 is in the ...

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Abstract

The invention relates to a contact collision buffer device in the field of high-voltage electrical appliances and a sulfur hexafluoride circuit breaker using the device; One end of the guide rod is used for contact installation, and the other end is connected with a damping structure. The damping structure includes a piston cylinder and a piston installed in the piston cylinder. The contact is fixedly connected to the piston with a guide rod, and the piston is provided with a damping hole; The buffer device also includes a spring for providing an elastic reaction force to the contact when the contact on the contact guide rod is bumped. When in use, the contact is installed on the guide rod for the contact, and the action of the guide rod is buffered by the damping structure, which can quickly realize the separation of the dynamic and static contacts, and avoid repeated collisions between the two contacts. Compared with the prior art, the impact caused by contact collision to the circuit breaker is small, and the components of the circuit breaker are not easy to be damaged.

Description

technical field [0001] The invention relates to a contact collision buffer device in the field of high-voltage electrical appliances and a sulfur hexafluoride circuit breaker using the device. Background technique [0002] 550kV sulfur hexafluoride (SF6) circuit breaker, as the source equipment of the power transmission and transformation industry, plays a vital role in the safety and reliability of the power grid; in order to weaken the electromagnetic oscillation and limit the operating overvoltage when closing the long line without load , generally by setting the closing resistor to absorb part of the electric energy in the grid and transform it into heat energy. The closing resistor circuit is generally connected in parallel with the main circuit. When closing, the two resistance contacts of the closing resistor are closed first, and are connected in series with the resistor to form a flow circuit. After the closing resistor is connected for about 10ms, the main break i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/02H01H3/60
CPCH01H3/605H01H33/02H01H3/60
Inventor 骆常璐杨姣龙李松磊史峰涛程龙君张凯刘沛孟露
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR
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