Device and method for integrated protection and measurement and control for ring main unit

A technology of comprehensive protection and measurement and control methods, which is applied in the direction of automatic disconnection emergency protection devices, emergency protection circuit devices, circuit devices, etc., can solve the problems of not having measurement and control protection, and achieve the effect of quickly removing faults

Pending Publication Date: 2018-02-16
湖南长高思瑞自动化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most ring network cabinets do not have the function of measurement, control and protection.

Method used

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  • Device and method for integrated protection and measurement and control for ring main unit
  • Device and method for integrated protection and measurement and control for ring main unit
  • Device and method for integrated protection and measurement and control for ring main unit

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Embodiment Construction

[0033] like figure 1 As shown, the device of the present invention includes an MCU module (CPU), an input module, a liquid crystal display module, a protection module, a communication module, and a power supply module.

[0034] The MCU module adopts the high-performance 16-bit DSP chip provided by American Microchip, and has powerful data processing functions. Its main functions are device data analysis and processing, logic function judgment, fault information processing and action, and information interaction with other communication equipment.

[0035] There are two main types of measurement and control signals for the protection device of the ring network cabinet, namely switching signals and analog signals. The signal input circuit part is to properly handle these two types of signals and complete the function of the input signal interface of the single-chip microcomputer system. Usually, the input switch signal cannot meet the input level requirements of the single-chip...

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Abstract

The present invention discloses a device and a method for integrated protection and measurement and control for a ring main unit. The device comprises a CPU, wherein the CPU is connected with a communication module, a human-machine interface module, a protection module, a power module, a voltage and current sampling module and an entering module; the protection module comprises a sampling coil; the sampling coil is connected with the CPU; and the CPU communicates with an overcurrent protection soft strap, an overvoltage protection soft strap, a reclosing soft strap, a low-voltage protection soft strap, a zero-sequence direction soft strap, a bus grounding soft strap, a TV disconnection soft strap and an overload soft strap. The device and the method can flexibly achieve various protectionand measurement and control functions, and are suitable for line protection with various voltage grades.

Description

technical field [0001] The invention relates to a comprehensive protection measurement and control device and method for a ring network cabinet. Background technique [0002] The development of my country's distribution network is proposed with the scale of urban construction, the growth of electricity load and the reliability of power supply. Due to the historical reasons for the disconnection of urban planning, the original distribution network structure has been unable to meet the needs of urban development. Since multiple users are connected to one power line, once the power line fails or is repaired, it will inevitably cause power outages to all users behind the main line, resulting in poor power supply reliability. powered by. [0003] The use of ring network power supply greatly improves the reliability of power supply. At present, the power distribution system has large power loss, low degree of automation, and slow recovery of fault handling. The market-oriented ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02H3/00H02J13/00
CPCH02H3/00H02H7/26H02J13/00
Inventor 谭泽宏黄浪博朱劲松
Owner 湖南长高思瑞自动化有限公司
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