Intelligent controller of permanent magnet mechanism breaker

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

Inactive Publication Date: 2012-07-04
SHENZHEN JINBOLIAN ELECTRIC POWER TECH
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  • 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 inte

Method used

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  • Intelligent controller of permanent magnet mechanism breaker
  • Intelligent controller of permanent magnet mechanism breaker
  • Intelligent controller of permanent magnet mechanism breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] like figure 1 As shown, the controller adopts a board 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, a board connector 3, LCD2, terminal 1, lower guide groove 7. It is plugged into the motherboard through a European plug, and the keyboard board and LCD are plugged into the other side of the motherboard.

[0026] like figure 2 As shown, the CPU module monitors the running status of the line, and starts the 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 digital signals to the CPU module. The power management module converts the input AC (PT or CT) or DC (solar power supply) into DC 12V to provide system power; it manages the charging and...

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PUM

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Abstract

The invention discloses an intelligent controller of a permanent magnet mechanism breaker, which is formed by combining the permanent magnet mechanism control technology and the relay protection technology and comprises a central processing unit (CPU) module, a data collection module, a power supply management module, a permanent magnet driving module, a communication module and a man-machine interface module. The controller can directly drive a mono-stable permanent magnet mechanism, achieve fault isolation and fault location and effectively determine fault lines especially for small current grounding faults by calculating and comparing component amplitude of transient zero-sequence current in feature bands. The controller has a fault wave recording function and can record as many as 5000 accident records. The controller has a self-diagnostic function and can detect and collect faults in passages on line, control faults in the passages in remote control mode and give alarms timely. The intelligent controller is strong in functions and can sufficiently meet requirements for construction of intelligent distribution networks by being matched with the permanent magnet breaker.

Description

technical field [0001] The invention belongs to the field of power electronics, and in particular relates to the realization of an intelligent controller of a circuit breaker with a permanent magnet mechanism. Background technique [0002] The permanent magnet mechanism adopts a new working principle, which organically combines the electromagnetic mechanism and the permanent magnet, avoiding the unfavorable factors caused by the mechanical tripping at the opening and closing position and the locking system. The force can keep the vacuum switch in the opening and closing position. The vacuum circuit breaker with permanent magnet mechanism has many advantages such as small size, light weight, fast opening and closing speed, maintenance-free, long life, power saving, oil-free and non-combustible, high reliability, and frequent operation, etc. It has been obtained in the field of medium voltage switches widely used. [0003] At present, medium and high voltage circuit breakers...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCY04S40/126Y04S40/127Y02E60/7853Y02E60/7861Y04S40/124Y02E60/00
Inventor 王建强张佳
Owner SHENZHEN JINBOLIAN ELECTRIC POWER TECH
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