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Electromagnetic repulsion operating mechanism and DC switching equipment

An operating mechanism, electromagnetic repulsion technology, applied in the direction of the power device inside the switch, etc., can solve problems such as the inability to achieve continuous action

Inactive Publication Date: 2019-03-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an electromagnetic repulsion operating mechanism to solve the problem that the electromagnetic repulsion operating mechanism in the prior art cannot realize continuous action; at the same time, the present invention also provides a DC switchgear

Method used

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  • Electromagnetic repulsion operating mechanism and DC switching equipment
  • Electromagnetic repulsion operating mechanism and DC switching equipment
  • Electromagnetic repulsion operating mechanism and DC switching equipment

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Embodiment Construction

[0022] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Specific embodiment 1 of the DC switchgear of the present invention, such as Figure 2 to Figure 3 As shown, the DC switchgear includes a DC circuit breaker and its electromagnetic repulsion operating mechanism, and the electromagnetic repulsion operating mechanism includes an energy storage device 11 and an operating mechanism body 12 . The operating mechanism is provided with a lower coil 114 and an upper coil 112, the metal disc 113 is arranged between the lower coil 114 and the upper coil 112, and the energy storage device 11 is used to discharge the lower coil 114 and the upper coil 112 so that the metal disc 113 is connected to the corresponding Electromagnetic repulsion is generated between the coils to drive the metal disk 113 to move. The moving contact of the DC circuit breaker is in drive connection with the metal disc 113, and when th...

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Abstract

The invention relates to an electromagnetic repulsion operating mechanism and DC switching equipment. The electromagnetic repulsion operating mechanism comprises an upper coil and a lower coil, wherein the upper coil is connected with an upper energy storage unit, and the lower coil is connected with a lower energy storage unit; each of the upper energy storage unit and the lower energy storage unit comprises two or more energy storage modules used for discharging the corresponding coil; output interfaces of the energy storage modules in each energy storage unit are connected in parallel and connected to the corresponding coil; and each energy storage module comprises an energy storage component and a control switch used for controlling the energy storage component. Therefore, the continuous operation of the electromagnetic repulsion operating mechanism can be realized.

Description

technical field [0001] The invention relates to an electromagnetic repulsion operating mechanism and a DC switchgear. Background technique [0002] Circuit breakers in multi-terminal DC and DC power grids need to complete short-circuit current limiting within milliseconds, and the operating mechanism of traditional circuit breakers operates at a slow speed, which cannot meet the requirements. The electromagnetic repulsion operating mechanism has obvious advantages in response and action speed, and its energy storage and trigger circuit drives the action of the operating mechanism through the discharge of the capacitor. The principle block diagram of the electromagnetic repulsion operating mechanism is as follows: figure 1 As shown, its working principle is as follows: the control device triggers the light-controlled thyristor in the upper energy storage module 1, so that the pre-charged capacitor in the upper energy storage module discharges to the upper coil 112 in the ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/28
CPCH01H3/28
Inventor 黄瑜珑钟建英温伟杰卢敬伟余占清程铁汉曾嵘张军民孙珂珂门博
Owner TSINGHUA UNIV