Meteor Spec LT
Win32 and 64, EnglishGeneral Usage Instructions
Component MeteorSpecNETWORK
There are three different ways to use MeteorSpecNETWORK and the user can freely choose any method from the following:
Method A. The distribution network model is located directly in the electrical installation project file. The model shall be built according to actual coordinates of designed network objects. In this case you get automatically all the cable lengths and all the coordinates of objects. Refer to the „Quick start. Method A“ Help topic for details.
Method B. The distribution network model is located in a separate file, and the electrical installation project file is attached as an external reference. We recommend to apply this method as the basic method of using the program. The model shall be built according to actual coordinates of designed network objects. In this case you get automatically all the cable lengths and all the coordinates of objects. Refer to the „Quick start. Method B“ Help topic for details.
Method C. The distribution network „abstract" model is drawn without reference to the real coordinates of distribution network objects. This method is mainly used to analyze distribution networks. Refer to the „Quick start. Method C“ Help topic for details.
Basic terms of constructing the network model are identical for all cases.
Basic steps of using MeteorSpecNETWORK
For the beginning works you must be sure that all MeteorSpecNETWORK work layersand all network model blocks exist in the drawing.
Step 1. Creation of the network model. All elements of a network model must be located on the layer "mtrspecnwmodel". Cable sections of lowvoltage distribution network are simulated with lightweight polylines. Power supply sources, consumers and junctions are simulated with blocks. Use the "Insert Block" command to insert blocks of model nodes and power supply. Use the "Draw Model Line" command to draw cable sections between blocks according to network topology.
Step 2. Assigning data to model objects using the commands "Object Data" or "Copy Data". The „Object Data" command is a universal command for viewing, modifying, and assigning data to any objects in the network model. The „Copy Data" command is intended to assigning data to several objects from a source object. The „Copy Data" command supports all objects except power supplies.
Step 3. Calculation of short circuit currents and voltage losses at any nodes of a feeder using the "Calculate" command. The „Calculate" command is a universal command for performing electrical calculations.
Step 4. Calculation of power demand and load currents in any cable sections using the "Calculate" command. The „Calculate" command is a universal command for performing electrical calculations.
Step 5. Analysis and application of calculation results. Clarification of of network topology. Correction of cable types and cable crosssections. Choice and sizing of protective devices.
Step 6. Calculate specifications of the model objects, using the „Cable Specification" command. The results of the program work can be issued as separate files or can be published on layouts in the model drawing.
Steps 2, 3 4 and 5 can be repeated for optimal results.
We strongly recommend to use the MeteorSpecNETWORK template delivered with the software. Use the “MTRSPECGETTEMPLATE” command to find the template file and save it in your current project folder with the desired file name.
For details, please, refer to the chapter “Getting started with MeteorCalc SL” in the MeteorSpecNETWORK Help system.
Component MeteorSpecELECTRIC
MeteorSpecELECTRIC is collection of various calculators for electrical designers and students. With MeteorSpecELECTRIC you may significantly simplify the process of miscellaneous electrical calculations when working on electrical projects.
The current version of the MeteorSpecELECTRIC contains the following calculators:
Power > Current calculator  calculation of currents in theephase, singlephase and DC elecrtical circuits;
Current > Power calculator  calculation of active power in theephase, singlephase and DC elecrtical circuits;
Ohm's Law calculator  calculation of voltage, currents and resistance in DC elecrtical circuits;
Component MeteorSpecPLINE
It is a totally customizable multipurpose tool for summarizing lengths and areas of any objects that can be modeled by lightweight polylines;
With MeteorSpecPLINE you may significantly simplify the process of miscellaneous calculations relating to materials, equipment and the amount of works when working on technical projects.
The software allows simulation of any engineering network elements, communications, facilities and areas in technical projects. And then the program quickly calculate summarized lengths, areas and amount of objects of the model.
The software is highly recommended to users who work in a field of power supplies, communication, computer networks, water supplies and sewages, architecture, road construction etc
Commands
Ribbon/Toolbar Icon  Command  Command Description 


MTRSPNWDATA 
Object Data. Opens “Object Data” window for viewing and assigning data. 

MTRSPCALCOBJ 
"Calculate" command opens "Calculation at the node" or "Calculation in the line" window 

MTRSPSPECALL 
Runs the calculation of specification in the current space, and opens "Cables Specification" window 

MTRSPCOPYDATA 
Opens "Copy Object Data" window to copy data from source object to destination objects 
Installation/Uninstallation
Installation
1. Check that you are in the system with the same user name that you will work with the program in the future. Close all the AutoCAD;
2. Start the installation setup file you received;
3. Select your location from a list;
4. Begin your work with the plugin using the MeteorSpec LT template fails. Type in the command line: MTRSPECGETTEMPLATE
Trusted Locations
MeteorSpec LT loads digitally signed executable modules only. On the first start, a path to the program folder will be added in the Trusted Locations list automatically. Please, allow the program to do this if such a request occurs.
Check your regional calculation settings
We strongly recommend you to check and set the settings of calculations. Temperatures of conductors directly affect the results of calculations.
Uninstallation
To uninstall this plugin, click Control Panel > Programs > Programs and Features and uninstall as you would any other application from your system.
To install the latest version, Please uninstall the previous version of the app.
Additional Information
After installation
We strongly recommend you to check and set the settings of electrotechnical calculations. Use the “MeteorSpecNETWORK Options” command and call the “Calculation Settings” window.
Default value of a conductor temperature for max SCC calculations. According to the IEC 60909 0, a conductor temperature of 20 °C is assumed for the calculation of the maximum shortcircuit current.
Default value of a conductor temperature for min SCC calculations. According to the IEC 609090, when calculating minimum shortcircuit currents, the value of the cable resistance has to be introduced at a higher temperature. This temperature usually is defined by regional standards.
Default value of a conductor temperature for voltage losses calculations. This temperature usually is defined by regional standards. The longterm permissible operating temperature of power cable may be used in the absence of such a standard.
Default value of nominal voltage in lowvoltage distribution networks. A nominal voltage of low voltage networks directly affects the results of current and voltage drop calculations.
Voltage tolerance in lowvoltage distribution networks. This parameter defines the voltage factors used in shortcircuit calculations. A voltage factor (as the part of an equivalent voltage source) directly affects the results of shortcircuit currents calculations.
First start
For first start we recommend you refer to the “MeteorSpec LT getting started beginners guide” brochure and use the “Example #1. Power supply of small residential area” dwgfile. This step by step example is adapted for the free version.
To download more recent trial version of MeteorSpec LT visit to https://meteorspec.com/downloads/autocad
To download more recent trial version of the partner software visit to https://meteorcalc.com/downloads/autocad
Known Issues
Component MeteorSpecNETWORK  Network feeders should have a treeshaped structure and should not have closed contours.
Component MeteorSpecPLINE  The polylines, are used for the area calculations, should not include self intersections. The area calculations of selfintersections polylines might be incorrect. The program will show warning message if you try to calculate an area of selfintersections polyline.
Contact
Author/Company Information
Support Information
We provide free online support for all our products, including free and trial versions.
Support page: www.meteorspec.com/support
Email support: support@meteorspec.com
Version History
Version Number  Version Description 

2.1.0 
2.1.0 New command „Fast power Sum“. This command helps the user to quickly calculate sum of power demands of any number of consumers. Additionally you can draw a cartogram of load power demands and find theoretically optimal location of a distribution substation. 2.0.0 The main difference between version 1.0 and 2.0 is that MeteorSpec is now multiplatform and multifunctional software kit. 
2.0.5 
2.0.0 The main difference between version 1.0 and 2.0 is that MeteorSpec is now multiplatform and multifunctional software kit. 
1.3.0 
Added 2019 support Added 2020 support 