CN104200035A - Electrical aided design method and system - Google Patents
Electrical aided design method and system Download PDFInfo
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- CN104200035A CN104200035A CN201410460345.5A CN201410460345A CN104200035A CN 104200035 A CN104200035 A CN 104200035A CN 201410460345 A CN201410460345 A CN 201410460345A CN 104200035 A CN104200035 A CN 104200035A
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Abstract
The invention provides an electrical aided design method and system which are smaller in workload and higher in efficiency in electrical design. The method includes the steps that an engineering design drawing is imported; the proportion of the drawing is automatically set; cable trenches are automatically drawn according to the drawing layout; indoor cable holders are automatically drawn according to the drawing layout; the length of arranged cables is automatically measured; a cable inventory is automatically established; the short-circuit current in a circuit in the drawing is automatically calculated; the grounding resistance of the circuit in the drawing is automatically calculated; wire tension of the cables in the circuit in the drawing is automatically calculated; lightning protection grounding design is automatically performed on the electrical circuit in the drawing. The electrical aided design system comprises a cable laying module (1), a lightning protection grounding design module (2), a common electrical calculation module (3) and a CAD software embedding module (4).
Description
Technical field
The present invention relates to a kind of electric auxiliary design method and system.
Background technology
Computer-aided design (CAD) refers to and utilizes computing machine and graphics device thereof to help designer to carry out design effort, is called for short CAD.In engineering and product design, computing machine can help designer to undertake a job such as calculating, information storage and drawing.In design, conventionally to different schemes, carry out a large amount of calculating, analysis and comparison with computing machine, to determine optimal case; Various design informations, no matter be digital, word or figure, can leave in the internal memory or external memory of computing machine, and can retrieve rapidly; Designer starts design with sketch conventionally, and the hard work that sketch is become to shop drawing can be given computing machine and complete; Utilize that computing machine can carry out with the editor of figure, amplifies, dwindles, the relevant graph data processing work such as translation and rotation.
CAD software systems of the prior art also can be used to do electrical design, although have with some electrical symbols and electric rule; But to carry out the efficiency of electrical design not high for this software systems when reality is used, because cable laying, design of lighting protection and grounding etc. still need slip-stick artist, a manual rule straight line adds, and in a lot of electrical design, conventional calculating also needs slip-stick artist's manual calculations just can carry out relevant electronics after to be well figure.
In sum, computer aided design system of the prior art exists cable laying while carrying out electrical design, design of lighting protection and grounding all to need the manual setting-out of slip-stick artist, conventional calculating also needs manual calculations, and design effort amount is large, the weak point of inefficiency.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of when carrying out electrical design workload less, electric auxiliary design method and system that efficiency is higher.
For solving the problems of the technologies described above, technical scheme provided by the invention is:
An electric auxiliary design method, it comprises the steps:
One, import drawing of engineering design;
Two, automatically drawing is carried out to ratio setting;
Three, according to drawing layout, automatically draw cable duct;
Four, according to drawing layout, automatically draw house cable support;
Five, automatically measure the length of the cable of laying;
Six, automatically set up cable inventory;
Seven, automatically calculate the short-circuit current of circuit in drawing;
Eight, automatically calculate the stake resistance of circuit in drawing;
Nine, automatically calculate in drawing the wire tension of cable in circuit;
Ten, automatically the electric circuit in drawing is carried out to preventing thunder earthing design.
An electric aided design system, it comprises cable laying module, preventing thunder earthing design module, electric conventional computing module and CAD software merge module; Described cable laying module, preventing thunder earthing design module and electric conventional computing module are all connected with CAD software merge module, and described CAD software merge module is used for embedding the electric aided design system of CAD; In described cable laying module, comprise proportion setting module, draw cable duct module, draw house cable rack module, measure cable length module and cable inventory module; Described preventing thunder earthing design module comprises lightning Protection Design module and grounding design module; Described electric conventional computing module comprises that calculation of short-circuit current module, stake resistance calculate module and wire tension computing module.
Adopt after said method and system, tool of the present invention has the following advantages: the functional module that adopts autonomous innovation, automatic cable laying module, preventing thunder earthing design module and electric conventional computing module on the basis of existing computer aided design system, have been increased, traditional manual designs and computing method and module are modified into automatically, and described improvement is not that existing computing method are directly changed into software yet, but having unique processing sequence, described module also has the software merge module from wound.
In sum, the invention provides a kind of when carrying out electrical design workload less, electric auxiliary design method and system that efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of electric auxiliary design method in the present invention.
Fig. 2 is the block diagram of the electric aided design system of the present invention.
As shown in the figure: 1, cable laying module, 2, preventing thunder earthing design module, 3, electric conventional computing module, 4, CAD software merge module.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
By reference to the accompanying drawings 1, a kind of electric auxiliary design method, it comprises the steps:
One, import drawing of engineering design;
Two, automatically drawing is carried out to ratio setting;
Three, according to drawing layout, automatically draw cable duct;
Four, according to drawing layout, automatically draw house cable support;
Five, automatically measure the length of the cable of laying;
Six, automatically set up cable inventory;
Seven, automatically calculate the short-circuit current of circuit in drawing;
Eight, automatically calculate the stake resistance of circuit in drawing;
Nine, automatically calculate in drawing the wire tension of cable in circuit;
Ten, automatically the electric circuit in drawing is carried out to preventing thunder earthing design.
Further combined with accompanying drawing 2, a kind of electric aided design system, it comprises cable laying module 1, preventing thunder earthing design module 2, electric conventional computing module 3 and CAD software merge module 4; Described cable laying module 1, preventing thunder earthing design module 2 and electric conventional computing module 3 are all connected with CAD software merge module 4, and described CAD software merge module 4 is for embedding the electric aided design system of CAD; In described cable laying module 1, comprise proportion setting module, draw cable duct module, draw house cable rack module, measure cable length module and cable inventory module; Described preventing thunder earthing design module 2 comprises lightning Protection Design module and grounding design module; Described electric conventional computing module 3 comprises that calculation of short-circuit current module, stake resistance calculate module and wire tension computing module.
The present invention in the specific implementation, being described in detail as follows of each step and module:
Ratio is set
Set the ratio of current drawing.From " system of described electric Computer Aided Design " menu, select " ratio setting ".In the window ejecting, can directly input or selection percentage value from drop-down list.After arranging successfully, can check current ratio at AutoCAD lower left corner status bar section start.
Draw cable duct
The cable duct of various turnings form can be drawn, the parameters such as width, length need to be inputted.
Draw house cable support
Plot step is with the drafting straight line of AutoCAD.
Measure cable length
The drawing ratio and the correction factor that according to user, arrange, also have the length of termination automatically to measure cable length.
Cable inventory
Automatically obtain cable length and protection tube specification and length on two equipment room shortest paths and this path, can also by model, add up the cable length of whole inventory and protection tube length, and generate Output of for ms.
Outside room, lay
Outside room, the program of laying is therefrom obtained data in Excel table, and all equipment is listed as into tree structure by engineering classification.
Outside cable support statistics
Add up the quantity of outside cable support in current drawing.(cable duct need be drawn and could add up with an electric Autocad)
Holding chamber inner cable bracket base
To place the mode of segment, draw house cable bracket base.
House cable support statistics
Add up the quantity (cable bearer need to be drawn and could add up with house cable support drawing tool) of house cable support in current drawing
Calculation of short-circuit current
Short-circuit current calculation program is mainly divided into two types: three winding models and double winding model, can provide the transformer station of maximum 4 main transformers to carry out calculation of short-circuit current.
The data of project file can be preserved/read to this program, draws the circuit diagram model of calculation of short-circuit current.
The parameter that also can provide according to interface is carried out calculation of short-circuit current, and outputs in AutoCAD with form.
As the short circuit calculation result of all operation possibility schemes all calculated, press [all schemes] button, during drawing result table, calculate transformer station in the result of split operation and various main transformer paired running situations.
Stake resistance calculates
Parameters on inputting interface picks up grounded screen entity from figure successively.
After specifying calculating, whether preserve calculation specification.
[save data] button can be selected whether the data on interface to be saved as to a project file.
[calculating] button can calculate stake resistance according to current interface data.
Wire tension calculates
This module is mainly divided into dimension parameters of transmission lines and the two-part data of meteorological conditional parameter.
Open an existing project file, its data are read on interface, comprise the information of electric pressure, wire type, meteorological condition etc.
[going out calculated description] button: according to the data of obtaining from interface, calculating is the wire tension situation under various states under selected standard meteorological conditions, according to pulling force result of calculation verification sag size, whether satisfy condition, and computation process and result are write to the calculated description file of appointment.
[curve plotting] button: the installation curve of drawing under construction and installation state corresponding sag and pulling force according to result of calculation in AutoCAD.
[drafting form] button: the installation form of drawing under construction and installation state corresponding sag and pulling force according to result of calculation in AutoCAD.
Lightning Protection Design
Lightning Protection Design function can and be estimated protection absolute altitude definite radius of protection automatically according to lightning rod height, and when arranging lightning rod, automatically draws the Combined Protection scope of a plurality of lightning rods.
User places lightning rod in the position of drawing area appointment.Selection will be calculated the lightning rod of protection height, can eject " protection height " dialog box, and protection height is set, and program can draw the Combined Protection scope of a plurality of lightning rods automatically.
Choose after immediate updating, when user place/move/copy/or can draw dynamically the Combined Protection scope of a plurality of lightning rods when deleting lightning rod, last setting is highly got in protection.
The Bx value that two lightning rods user can being selected are highly obtained by the protection of user's input marks out.
User selects after protection domain, and [mark rx] button can mark out the radius of the single needle protection domain from the nearest lightning rod of the point of user's appointment.
User can mark out the height of the protection domain of selecting in addition.
Lightning protection calculation result table
Lightning protection calculation result table function can between two between lightning rod Bx value be not that the protection domain result of calculation of 0 lightning rod is come with the formal output of DWG form, can select different table style.
Grounding design
Grounding design can be arranged grounded screen, ground wire, the earthing pole of whole transformer station, and statistical material and carry out ground connection calculating.
Select grounded screen type, input suitable parameter can be drawn.
Can in specifying Spacing, copy the ground wire of specified quantity.
Can click or frame choosing insertion earthing pole.
Give ground wire, earthing pole assignment.
Cable laying
Ratio is set
By this function, can set the ratio of current drawing, as shown below, directly revise in dialog box ratio value or from drop-down list selection percentage value, click " determining " button and can set new ratio, click the setting of " cancellation " button cancellation ratio.In the AutoCAD lower left corner, status bar section start indicates current ratio, facilitates user to check current drawing scale.
Measure cable length
The drawing ratio and the correction factor that according to user, arrange, also have the length of termination automatically to measure cable length.
Calculating ratio is first set, after correction factor and termination length, clicks and measure, then select to need the cable (multi-section-line) of measurement, the length of cable is just presented at (reservation two-decimal) in result bar.
Cable length=(choosing 1+ termination, multi-section-line length * calculating ratio+turning number * 1+ termination 2) * correction factor
Cable inventory
Automatically obtain cable length and protection tube specification and length on two equipment room shortest paths and this path, can also by model, add up the cable length of whole inventory and protection tube length, and generate Output of for ms.
1) obtain data
First select cable inventory, and key word is set.
Attention: worksheet and key word must be selected correctly, otherwise the data of obtaining are wrong.
Select after cable inventory; the viewing area of main dialog box can show starting point, the terminal of cable; with cable model; program can only show one the starting point cable identical with terminal; only the data (cable length, protection tube length, cable model) of need to be set, all cables on this starting point and terminal all adopt these data.
2) equipment is placed
In original total flat figure, there is no place apparatus, if with automatically measure equipment in the placement inventory that cable length function will be correct position, draw cable duct and house cable support.
Equipment laying method: first selecting in grid does not have the equipment of assignment, then clicks " designated equipment position " button or directly double-click this grid.If want to change a position to the equipment of having placed, can directly move, after also can deleting, reappose again.
Because program is not known total flat figure, how high be where that pulpit, pulpit have, so also will select by hand the position of pulpit.Click " cable floor floating floor region " button, and then specified control chamber region.
Program also provides the function of batch assignment, first selects to need in grid the equipment of assignment, then clicks " designated equipment in batches " button, then selects to need the region of designated equipment in batches.
In batches placement condition be if the equipment in pulpit must indicate it is how many P in the drawings, and in grid, selects all equipment.If the equipment at interval, interval is must be the interval of placing with an electric software, and in grid, only selects to belong to the equipment at this interval.
3) equipment assignment
Equipment assignment can arrange before place apparatus position, also can after place apparatus, upgrade again, and update method is to click Update button after setting height.
Suggestion is to arrange before placing, and the differing heights of other equipment can be set so easily.If upgrade after placing, the height of other equipment is all unified again, want to arrange several special want to reappose after sweep equipment just passable.
Correction factor and curve length are also in this dialog box setting.
In main interface, click to arrange and can eject this dialog box.
4) measure cable length
Can measure cable length by two kinds of methods:
Method one: first draw in the drawings cable, then in grid, double-click the grid of the cable length that this cable is corresponding, program can eject measures cable length dialog box, puts corresponding button after having measured cable, and data can be write (reservation one decimal place) in grid.
Method two: the in the situation that of having placed equipment and drawn cable duct and pulpit in total flat figure; click " calculating whole cable lengths " or " calculating current cable length " button in main dialog box; program can automatically be calculated cable shortest path length and corresponding protection tube length, and is filled up to (reservation one decimal place) in grid.
Automatically the length formula of measuring:
Cable length=(shortest path length+number * curve length+device height of turning round) * correction factor
The cable length in cable duct or in pulpit (comprise and turn round) of protection tube length=not
Note: terminal box and power supply box are to not joining protection tube between cable duct
5) show paths
If the length and location of cable is checked, program also provides display plane figure and has shown the function of shaft side figure.
Display plane figure: after the equipment of selecting to need to show, click " shortest path planimetric map " button, program can draw shortest path plan figure, and view is navigated on this path.
Show shaft side figure: after the equipment of selecting to need to show, click " shortest path shaft side figure " button, program can draw shortest path figure shaft side figure, and on path, marks length, by the insertion point of user's specified path.
6) protective casing management
After clicking " protective casing management " button, protective casing management of dialogs frame can be ejected, by instrument, the protection tube information of deleting can be dosed.When clicking " being saved in Excel ", program will be searched suitable caliber according to the model of cable in protection tube database, and fills out corresponding caliber position in Excel table.
7) statistics cable length
Click after " statistics " button, program ejects statistics cable length dialog box, and all cables are listed by model and electric pressure, select after cable and electric pressure, program is listed as into a table the cable overall length of this model under this electric pressure by specification automatically, by user, specifies insertion point.
Statistics dialog box
Outside room, lay
Outside room, the program of laying is therefrom obtained data in Excel table, and all equipment is listed as into tree structure by engineering classification.User can single choice or multiselect tree on node, if what choose is a file, all nodes in that file are all selected.This tree has also shown that those equipment is what to have generated intuitively, with a mark, represents, those are not generate, with another kind of mark, represent
1) obtain data
Click after " selecting cable inventory " button in main dialog box, can eject and obtain data session frame, click in this dialog box, to obtain the inventory that data button will choose from user and obtain data (if when the data of not obtaining or data are mistake, need user to check whether the table in cable meter combobox is selected correctly, whether the attribute in cable starting point, cable terminal, cable number combobox is correct in addition).After having obtained data, click the definite data that obtain will being passed in main dialog box.
2) table sample formula is set
The program of laying outside room also provides the function that cable meter pattern is set, and makes the pattern of form can variation, more attractive in appearance when combining, convenient.
3) locating function
Because comparison in equipment is many, thus program provide one can search equipment function.When clicking " searching " button, can eject search dialogue, the word that the equipment that input need to be searched comprises (whether case sensitively can select), point will provide a search result table after determining, the device name select needing in result table point are determined or are directly double-clicked device name, just can in tree, choose just now selected equipment, then in main interface, click " generation " button and just can generate the cable meter of the equipment of just now selecting.
4) explanation of tables
Gauge outfit in table is writing a Chinese character in simplified form of device name, and the full name of equipment shows when can be placed on bezel, cluster with mouse.
5) draw gauge outfit
Appointment will be drawn the left and right inferior horn of gauge outfit position, input gauge outfit word.
6) engineering classification
According to the configuration in corresponding ini file, classify, wouldn't manually input at present.
7) add class, delete class
To generating the tree of inventory, safeguard, can add, Delete Folder.
8) select generation to repeat table
If select adjacent table to generate, select, after first table, to press shift key simultaneously and select last table; If select non-conterminous table to generate, press ctrl key and can select simultaneously.
9) generate selected table
The equipment list that generation is chosen.
10) generate without repeating table
The equipment list having generated does not just repeat to generate.
11) locking has generated table
The table having generated can not regenerate again.
Outside cable support statistics
Add up the quantity (cable duct must carry out picture with an electric Autocad) of outside cable support in current drawing
House cable support is drawn
To place the mode of segment, draw house cable bracket base.
House cable support statistics
Add up the quantity of house cable support in current drawing.(cable bearer must carry out picture with house cable support drawing tool)
Control flow is drawn
Interface is as follows:
[line number]: line number is drawn in control flow position.
[columns]: columns is drawn in control flow position.
[screen is long]: the length of each screen position.
[shielding wide]: the width of each screen position.
[line-spacing]: adjacent lines screen position spacing.
[start-up screen number]: the Base Serial Number of screen position.
[starting to draw]: according to interface data, draw control flow, result is as follows:
Lightning protection
The algorithm foundation of lightning Protection Design function is " polygometry ".Wherein all computing formula and parameter are selected all with reference to < < industry and Domestic distribution design manual > > and < < power engineering electrical design handbook > >.
Lightning Protection Design function can and be estimated protection absolute altitude definite radius of protection automatically according to lightning rod height, and when arranging lightning rod, automatically draws the Combined Protection scope of a plurality of lightning rods.
Lightning Protection Design
The placement of lightning rod
According to user, in the position of drawing area appointment, place lightning rod.
The height of the lightning rod after placement and numbering can be double-clicked " the enhanced properties editing machine " that after lightning rod, ejection comes again and revise.
Calculate protection height
The lightning rod that user first selects, can eject " protection height " dialog box after selection lightning rod is complete, set up and protect after height, the lightning rod that program can be chosen according to user and the highly automated Combined Protection scope that draws a plurality of lightning rods of protection.
Immediate updating
Choose after immediate updating, when user places lightning rod, mobile lightning rod, copies lightning rod or deletes lightning rod, can draw dynamically the Combined Protection scope of a plurality of lightning rods.The setting with last time is highly gone in protection.
Mark Bx
The Bx value that two lightning rods that user is selected are highly obtained by the protection of user's input marks out.
Mark rx
User selects after protection domain, and the radius of the single needle protection domain from the nearest lightning rod of the point of user's appointment is marked out.
Mark protection height
The height of the protection domain that user is selected marks out.
Grounding design
Grounding design can be arranged grounded screen, ground wire, the earthing pole of whole transformer station, and statistical material and carry out ground connection calculating.
Conventional calculating
Calculation of short-circuit current
Transformer station's voltage bus at different levels being carried out to all types of short-circuit current, dash current, the capacities of short circuit such as three-phase shortcircuit, two-phase phase fault, two-phase ground short circuit and single-line to ground fault calculates, and to major equipment enter thermally-stabilised, steady current is carried out to verification, and can provide computational data for other calculating such as step voltage, touch voltages.
Short-circuit current calculation program is mainly divided into two types: three winding models and double winding model, can provide the transformer station of maximum 4 main transformers to carry out calculation of short-circuit current.
The three main interfaces of short circuit in winding Current calculation are as shown below.Major parameter has:
[engineering name]: input substation project title.
[positive sequence impedance X (system)]: the positive sequence impedance value of input transformer substation system.
[positive sequence impedance X (high pressure)]: input transformer station high-pressure side positive sequence impedance value.
[positive sequence impedance X (middle pressure)]: input transformer station medium voltage side positive sequence impedance value.
[zero sequence impedance X (system)]: the zero sequence impedance value of input transformer substation system.
[zero sequence impedance X (high pressure)]: input transformer station high-pressure side zero sequence impedance value.
[zero sequence impedance X (middle pressure)]: input transformer station medium voltage side zero sequence impedance value.System impedance value is that main transformer is the value that the reference capacity of 100MVA provides, if [reference capacity] value is not 100 o'clock, the value that program can be automatically converted to relative 100MVA capacity in can computation process is calculated.
[capacity (MVA)]: the reference capacity of input transformer station, the reference capacity of general main transformer is 100MVA.
[electric pressure]: input respectively transformer station high-pressure side, medium voltage side and low-pressure side electric pressure.
[main transformer parameter]: model, volume ratio, impedance voltage (Ud1-2/Ud1-3/Ud2-3), limit anti-Ie, limit anti-number percent, neutral ground situation and paired running situation.Side by side rule is that adjacent main transformer can paired running, as the situation arranged side by side in No. 1 main transformer parameter, selects " No. 2 main transformers ", represents that 1, No. 2 main transformer is arranged side by side.
[engineering name]: substation project title.
[system impedance]: comprise positive sequence system impedance and zero sequence system impedance.System impedance value is that main transformer is the value that the reference capacity of 100MVA provides, if [reference capacity] value is not 100 o'clock, the value that program can be automatically converted to relative 100MVA capacity in can computation process is calculated.
[reference capacity]: the reference capacity of input transformer station.
[electric pressure]: the electric pressure of input transformer station high-pressure side and low-pressure side.
[main transformer parameter]: model, volume ratio, impedance voltage Ud, limit anti-Ie, limit anti-number percent, neutral ground situation and situation in parallel.System impedance value is that main transformer is the value that the reference capacity of 100MVA provides, if [reference capacity] value is not 100 o'clock, the value that program can be automatically converted to relative 100MVA capacity in can computation process is calculated.
Other major functions:
[preservation engineering] button: open an existing project file, its data are read to interface first-class.
[reading engineering] button: the data on interface are saved as to a project file.
[blueprint drawing] button: the circuit diagram model of drawing calculation of short-circuit current.
[drawing result table] button: the parameter providing according to interface is carried out calculation of short-circuit current, and outputs in AutoCAD with form.
[all schemes] button: calculate transformer station during drawing result table in the result of split operation and various main transformer paired running situations.As shown below, the short circuit short circuit calculation result of the possible scheme of all operations is all calculated.
Important explanation:
This software for calculation, for transmission system exploitation, provides star impedance model to carry out based on system, each value of contrast input when system provides parameter by this model;
System provides while not being star impedance model: when certain impedance is 0, this impedance (input frame should be filled out) is 0.0001, and when certain impedance is while being infinitely great, this impedance (input frame should be filled out) is 999.9;
While calculating for electric power system, temporarily can not calculate the short-circuit current under medium voltage side split operation mode.
Stake resistance calculates
It is as shown below that stake resistance calculates interface, and data input mainly includes:
[engineering name]: the substation project name of inputting current calculating stake resistance.
[extension project]: select whether current engineering transformer station is extension project.
[short circuit duration]: input short time, unit: s
[trouble spot short-circuit current]: input fault point short-circuit current value, unit: kA
[the maximum stake resistance of neutral point]: the maximum grounding resistance of input neutral point, unit: kA
[company's regulation resistance]: the maximum of input Nan Wang company regulation allows resistance, unit: Ω
[transformer station's area]: input transformer station area, unit: m2
[grounded screen edge overall length]: the input whole grounded screen of transformer station edge ground wire length, unit: m
[grounded screen overall length]: input transformer station whole Grounding line total length, unit: m
[picking up]: from figure, pick up grounded screen entity, automatically calculate transformer station's area, grounded screen edge overall length and grounded screen overall length.
[artificial earthing's electrode resistance]: the resistance of the input artificial earthing utmost point, unit: Ω
[Word calculated description]: appointment is to preserve calculation specification after calculating.
[save data]: the data on interface are saved as to a project file.
[sense data]: from a project file sense data to interface.
[calculating]: according to current interface data, calculate stake resistance.
[exiting]: exit ground connection calculation procedure.
[result of calculation]: show that current stake resistance calculates result.
Wire Mechanics Calculation
The object of wire Mechanics Calculation so long as provide frame design data to Civil Specialities, provide wire degree of speeding and pulling force data, and to wire, the Stren gsth test of insulator, gold utensil provides foundation to unit in charge of construction.This module is mainly divided into dimension parameters of transmission lines and the two-part data of meteorological conditional parameter.
Dimension parameters of transmission lines mainly contains electric pressure, wire type, maximum unwrapping wire sag, short-circuit current effective value, each wire type, wire span/length, wire clamp weight, position, insulator chain model, length, sheet number and the gold utensil data such as heavily.
Meteorological condition setting parameter, include nine meteorologic districts, during design, calculating adopted meteorological condition should determine according to local meteorological data, that duty has is the highest, people's maintenance in minimum temperature, maximum wind velocity, peak load, construction and installation, high and low temperature, external overvoltage, internal overvoltage and maximum working voltage etc., and each state includes the conditions such as temperature, wind speed and ice covering thickness.
Pulling force calculates and mainly comprises calculating have the suffered blast of wire and unit load, the suffered blast of insulator and mechanical loading; Wire is at the counter-force RA of free beam A, B two fulcrums and RB, each section of shearing situation, each point moment M and load factor D; Maximum sag under each state, the stress of conductor, horizontal pull and solution wire equation of state also go out calculated description etc.
Other function declarations:
[opening file] button: open an existing project file, its data are read on interface, comprise the information of meteorological condition etc.
[preservation file] button: the data on interface are saved as to a project file, comprise the information of meteorological condition.
[going out calculated description] button: according to the data of obtaining from interface, calculating is the wire tension situation under various states under selected standard meteorological conditions, according to pulling force result of calculation verification sag size, whether satisfy condition, and computation process and result are write to the calculated description file of appointment.
[curve plotting] button: the installation curve of drawing under construction and installation state corresponding sag and pulling force according to result of calculation in AutoCAD.
[drafting form] button: the installation form of drawing under construction and installation state corresponding sag and pulling force according to result of calculation in AutoCAD.
Above the present invention and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this.If generally speaking those of ordinary skill in the art is enlightened by it, in the situation that not departing from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (2)
1. an electric auxiliary design method, is characterized in that: it comprises the steps:
One, import drawing of engineering design;
Two, automatically drawing is carried out to ratio setting;
Three, according to drawing layout, automatically draw cable duct;
Four, according to drawing layout, automatically draw house cable support;
Five, automatically measure the length of the cable of laying;
Six, automatically set up cable inventory;
Seven, automatically calculate the short-circuit current of circuit in drawing;
Eight, automatically calculate the stake resistance of circuit in drawing;
Nine, automatically calculate in drawing the wire tension of cable in circuit;
Ten, automatically the electric circuit in drawing is carried out to preventing thunder earthing design.
2. adopt an electric aided design system for electric auxiliary design method claimed in claim 1, it is characterized in that: it comprises cable laying module (1), preventing thunder earthing design module (2), electric conventional computing module (3) and CAD software merge module (4); Described cable laying module (1), preventing thunder earthing design module (2) and electric conventional computing module (3) are all connected with CAD software merge module (4), and described CAD software merge module (4) is for embedding the electric aided design system of CAD; In described cable laying module (1), comprise proportion setting module, draw cable duct module, draw house cable rack module, measure cable length module and cable inventory module; Described preventing thunder earthing design module (2) comprises lightning Protection Design module and grounding design module; Described electric conventional computing module (3) comprises that calculation of short-circuit current module, stake resistance calculate module and wire tension computing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460345.5A CN104200035A (en) | 2014-09-11 | 2014-09-11 | Electrical aided design method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460345.5A CN104200035A (en) | 2014-09-11 | 2014-09-11 | Electrical aided design method and system |
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| Publication Number | Publication Date |
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| CN104200035A true CN104200035A (en) | 2014-12-10 |
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| CN201410460345.5A Pending CN104200035A (en) | 2014-09-11 | 2014-09-11 | Electrical aided design method and system |
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| CN (1) | CN104200035A (en) |
Cited By (3)
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| CN110096782A (en) * | 2019-04-24 | 2019-08-06 | 中国石油天然气集团有限公司 | A kind of oil-gas pipeline engineering power cable minute design method |
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| CN112685863A (en) * | 2020-12-23 | 2021-04-20 | 国家电网有限公司 | Simulation system for cable laying of transformer substation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110096782A (en) * | 2019-04-24 | 2019-08-06 | 中国石油天然气集团有限公司 | A kind of oil-gas pipeline engineering power cable minute design method |
| CN111563303A (en) * | 2020-04-03 | 2020-08-21 | 广东省工业设备安装有限公司 | Control method, system and storage medium for electrical circuit aided design |
| CN111563303B (en) * | 2020-04-03 | 2023-09-19 | 广东省工业设备安装有限公司 | Control method, system and storage medium for auxiliary design of electric circuit |
| CN112685863A (en) * | 2020-12-23 | 2021-04-20 | 国家电网有限公司 | Simulation system for cable laying of transformer substation |
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Application publication date: 20141210 |