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Data acquiring and processing system of intelligent switch synthetic protective device based on LabVIEW (Laborary Virtual Instrument Engineering Workbench)

A comprehensive protection device and data acquisition technology, which is applied in the field of data acquisition and processing of intelligent switch comprehensive protection devices, can solve problems such as different structures and applicable scopes, and achieve the effect of shortening the protection response time

Inactive Publication Date: 2011-03-30
周洪霖
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AI Technical Summary

Problems solved by technology

In recent years, with the increase of electricity load and the construction of new substations, electrical equipment of various new structures and materials have also emerged one after another. 1. The needs of different wiring methods. Although various types of isolating switches have the same purpose, their structure and scope of application are different, and the maintenance work of various types of isolating switches is also very different.

Method used

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  • Data acquiring and processing system of intelligent switch synthetic protective device based on LabVIEW (Laborary Virtual Instrument Engineering Workbench)
  • Data acquiring and processing system of intelligent switch synthetic protective device based on LabVIEW (Laborary Virtual Instrument Engineering Workbench)

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Embodiment Construction

[0018] The invention includes microcontroller 89C51, conditioning circuit of analog signal, A / D conversion circuit, serial E2PROM storage circuit, RAM and photoelectric isolation circuit.

[0019] The sampling of waveforms such as current is actually a conversion process from inputting continuous analog quantities to discrete sampling digital quantities, which is realized here by sampling interrupts.

[0020] The switches protected by the microcomputer from the outside, such as the switch, the auxiliary contact of the knife position, the receiving and sending status contacts of the transceiver, etc., are all processed by the photoelectric isolation technology in the switch input circuit, and then the information is sent to the central processing system. . The switching value sent from the microcomputer protection, such as tripping command, alarm information, etc., is processed by the photoelectric isolation technology in the switching value output circuit, and then the judgmen...

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Abstract

The invention relates to a data acquiring and processing system of an intelligent switch synthetic protective device based on an LabVIEW (Laborary Virtual Instrument Engineering Workbench), in particular to a data acquiring and processing technology of the intelligent switch synthetic protective device based on the LabVIEW, belonging to the field of electronic industry. The invention provides the data acquiring and processing technology of the intelligent switch synthetic protective device based on the LabVIEW, which is especially suitable for building an interconnection equipment network system or subsystem. The data acquiring and processing system comprises a microcontroller 89C51, an analog signal conditioning circuit, an A / D (Analog to Digital) conversion circuit, a serial E2PROM (Electronic 2 Programmable Read-Only Memory) memory circuit, an RAM (Random Access Memory) and a photoelectric insulating circuit.

Description

Technical field: [0001] The invention belongs to the field of the electronic industry, and is a data acquisition and processing technology of an intelligent switch comprehensive protection device based on LabVIEW. Background technique: [0002] my country's power industry is full of vigor and vitality, which brings rare development opportunities and severe tests for the high-voltage switchgear manufacturing industry. The high-voltage switch manufacturing industry must continue to carry out technological innovation and launch new products generation after generation in order to meet the growing demand of the power market. At present, the high-voltage switch has a good development momentum. However, as an important switching device in the power system, the high-voltage disconnector directly affects the transmission and distribution of electric energy and the safe and reliable operation of the system. In recent years, with the increase of electricity load and the construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H02H7/26
CPCY04S10/20Y02E60/725Y02E60/00
Inventor 周洪霖
Owner 周洪霖
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