Automatic generation method of secondary electrical schematic diagrams based on Auto CAD

Abstract

The invention discloses an automatic generation method of secondary electrical schematic diagrams based on Auto CAD. The automatic generation method includes the steps that modular processing is carried out on factory-like secondary electrical schematic diagrams of various elements of a switchgear set, united figure numbers are compiled through diagram paper after the modular processing, and a stand diagram list is formed; the secondary electrical schematic diagrams are classified according to a CT current loop, a control loop, a switchgear subsidiary loop, a PT voltage circuit and other subsidiary loops to set up a secondary electrical schematic diagram model selection list; parameters are inputted; a schematic diagram selection list is automatically formed through calling of an EXCEL VBA function; whether the secondary electrical schematic diagram selection list is reasonable or not is judged, after the secondary electrical schematic diagram selection list is determined, the secondary electrical schematic diagrams are sequentially called in the Auto CAD according to the figure numbers of the selection list, the diagram paper is summarized and tidied, and needed information is generated by means of a CCES electrical diagram platform. The automatic generation method has the advantages of being capable of shortening time limit for goods delivery, and improving work efficiency and design accuracy rate.

Description

technical field [0001] The invention belongs to the field of factory design of a complete set of switch cabinets, in particular to an automatic generation method of a secondary electrical schematic diagram based on Auto CAD. Background technique [0002] In the field of complete switchgear production, in order to meet the complicated requirements of different customers, products are basically customized for users. It is characterized by various types of primary main circuit components and various types of secondary protection devices, not to mention other supporting secondary protection devices. There are many varieties of auxiliary circuit components, so the design of its electrical schematic diagram is extremely cumbersome. Its design method has been using the manual drawing of electrical schematic diagrams and wiring diagrams. The generation method is: draw each circuit one by one in Auto CAD software and components, fill in the model parameters, quantity, etc. of each co...

AI Technical Summary

Problems solved by technology

[0002] In the field of complete switchgear production, in order to meet the complicated requirements of different customers, products are basically customized for users. It is characterized by various types of primary main circuit components and various types of secondary protection devices, not to mention other supporting secondary protection devices. There are many varieties of auxiliary circuit components, so the design of its electrical schematic diagram is extremely cumbersome. Its design method has been using the manual drawing of electrical schematic diagrams and wiring diagrams. The generation method is: draw each circuit one by one in Auto CAD software and components, fill in the model parameters, quantity, etc. of each component one by one, and then connect each component to generate the required schematic diagram, and then manually draw the on-site wiring diagram and terminal layout diagram for factory production according to the schematic diagram. The design method is simple and repetitive. Low efficiency and high error rate

However, with the rapid development of the power system and the fierce market competition, the requirements for the delivery period have been shortened again and again. Therefore, the existing factory design methods can no longer meet the product schedule requirements.

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