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An Intelligent Controller for Circuit Breaker with Permanent Magnet Mechanism

A technology of intelligent controller and permanent magnet mechanism, applied in circuit devices, electrical components, information technology support systems, etc., can solve the problems of low level of intelligence of medium and high voltage circuit breakers, inability to meet the needs of the development of intelligent distribution networks, etc. To achieve the effect of powerful functions, rich communication interfaces, and powerful computing power

Inactive Publication Date: 2016-01-06
SHENZHEN JINBOLIAN ELECTRIC POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, medium and high voltage circuit breakers have a low degree of intelligence and cannot meet the needs of the development of smart distribution networks.

Method used

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  • An Intelligent Controller for Circuit Breaker with Permanent Magnet Mechanism
  • An Intelligent Controller for Circuit Breaker with Permanent Magnet Mechanism
  • An Intelligent Controller for Circuit Breaker with Permanent Magnet Mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Such as figure 1 As shown, the controller adopts a board card structure similar to an industrial computer, and each functional board is inserted on a passive motherboard to facilitate on-site maintenance; the card board 6 includes a keyboard board 4, a motherboard 5, and a board connector 3. LCD2, terminal 1, lower guide groove 7. It is plugged into the motherboard through the European plug, and the keyboard board and LCD are plugged into the other side of the motherboard.

[0025] Such as figure 2 As shown, the CPU module monitors the running state of the line, and starts a protection action or sends out an alarm message according to the calculation result. The data acquisition module collects three-phase voltage, three-phase current and zero-sequence current, performs A / D conversion, and sends the digital signal to the CPU module. The power management module is used to convert the input AC from PT or CT or the input DC from solar power into DC 12V, provide system power...

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PUM

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Abstract

The invention discloses an intelligent controller for a circuit breaker with a permanent magnet mechanism. An intelligent permanent magnet circuit breaker controller is formed by combining the permanent magnet mechanism control technology with the relay protection technology. The controller includes a CPU module and a data acquisition module , power management module, permanent magnet drive module, communication module, man-machine interface module, the controller can directly drive the monostable permanent magnet mechanism; it can realize fault isolation and fault location; especially for small current grounding faults, through calculation and comparison The amplitude of the transient zero-sequence current component in the characteristic frequency band can effectively determine the fault line. With fault recording function, it can record up to 5000 event records. The controller has a self-diagnosis function, which can detect the failure of the acquisition channel and the remote control channel online, and give an alarm in time; the intelligent controller is powerful, and cooperates with the permanent magnet circuit breaker, which can fully meet the needs of the construction of the intelligent distribution network.

Description

Technical field [0001] The invention belongs to the field of power electronics, and specifically relates to the realization of an intelligent controller for a permanent magnet mechanism circuit breaker. Background technique [0002] The permanent magnet mechanism adopts a new working principle, which organically combines the electromagnetic mechanism and the permanent magnet to avoid the unfavorable factors caused by the mechanical tripping and locking system at the opening and closing positions. It does not require any mechanical energy to be held by the permanent magnet. The force can keep the vacuum switch in the on-off position. Permanent magnet mechanism vacuum circuit breaker has many advantages such as small size, light weight, fast opening and closing speed, maintenance-free, long life, power saving, oil-free, non-combustible, high reliability, and frequent operation. It has been obtained in the field of medium voltage switches. widely used. [0003] At present, the degre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY04S40/124Y04S40/126Y02E60/00
Inventor 王建强张佳
Owner SHENZHEN JINBOLIAN ELECTRIC POWER TECH
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