MeteorCalc SL

MeteorCalc SL

Win32 and 64, English

MeteorOwl OÜ
Powerful application for designing electrical part of street lighting installations. It fully automates all electrotechnical calculations, computations of specifications and drawing of schemes.

General Usage Instructions

There are two different ways to use MeteorCalc SL:

  • The street lighting model is located directly in the street lighting project file. This method can be applied to small projects.
  • The street lighting model is located in a separate file, and the street lighting project file is attached as an external reference. It is the basic method of using the program.


Basic steps of using MeteorCalc SL

To start with, you must be sure that all MeteorCalc SL work layers and all street lighting model blocks exist in the drawing.

Step 1. Creation of the street lighting model. Cable spans of street lighting network are simulated with lightweight polylines on the layer "mtr-calc-sl-model". Street lighting units are simulated with blocks inserted on the layer "mtr-calc-sl-units". Transformers and distribution panel boards are simulated with blocks inserted on the layer "mtr-calc-sl-model".

Step 2. Assigning data to model objects using the commands Object Data or Feeder Object Data.

Step 3. Numbering of objects in a feeder and distribution on phases using the command Numbering and Distribution by Phases.

Step 4. Electrotechnical calculations in any end point of a feeder, reviewing and outputting the results via the window End Point Calculation. A calculation of a short circuit current and a calculation of a voltage loss will be performed in each selected end point.

Step 5. Electrotechnical calculations in any feeder, reviewing and outputting the results via the window Feeder Calculation. A calculation of power sum and working currents of a feeder will be performed for each phase separately.

Step 6. Electrotechnical calculations in a distribution panel board, reviewing and outputting the results via the window DPB Calculation. A calculation of power summ and working currents of a distribution panel board. A calculation of a short circuit current and a calculation of a voltage loss in a distribution panel board.

Step 7. Drawing of a scheme of feeders via the window Feeder Scheme. A calculation of a short circuit current and a calculation of a voltage loss in each end point of the scheme.

Step 8. Calculations of specifications of the model objects, reviewing and outputting the results via the window Total Specification or DPB Specification or Feeder Specification.


When assigning data, during Step 1 and Step 2, adding new data types may be necessary to describe the model objects. In this case, Data Library Editor should be run to add necessary characteristics. Those become available immediately when the data window displayed. 

For details, please refer to the chapter “Getting started with MeteorCalc SL” in the MeteorCalc SL Help.

There are several video tutorials with different drawing examples: 

-MeteorCalc SL features overview

-Creation of a street lighting model 

-Audit a street lighting model



Ribbon/Toolbar Icon Command Command Description


Select the source object


The Data Library Manager dialog box will appear


Select the object


Select the street lighting unit for calculation


MeteorCalc SL 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 versions of AutoCAD;
  2. Start the installation setup file downloaded from the Autodesk App Store;
  3. Select your location from a list;
  4. After completing the installation, start AutoCAD, open any drawing and wait for the installation of the MeteorCalc SL panel on the ribbon and the menu bar.


Trusted Locations

For versions Autodesk® AutoCAD® 2016 and higher the MeteorCalc loads digitally signed executable modules only. On first start after installation a path to the program folder will be added in the Trusted Locations list automatically. 


Check your regional settings

We strongly recommend you check the main settings of the program and, if necessary, change them according to your regional standards. Please, refer to the “Quick user guide” brochure.


MeteorCalc SL uninstallation

To uninstall this plug-in, click Control Panel > Programs > Programs and Features (Windows 7/8/8.1/10) or Control Panel > Add or Remove Programs (Windows XP), and uninstall as you would any other application from your system.

Additional Information

The easiest way to evaluate the effectiveness of MeteorCalc SL, is to watch the video with the overview of the main features of MeteorCalc: and the MeteorCalc presentation in video format:

Also, we recommend you watch the video tutorials on our website All videos have English narrations.

The final result of the program work is a set of drawings, including a plan of street lighting installation, a plan-scheme, single-line feeder diagrams, specifications and tables with information sheets for ordering equipment. The examples of drawings are located in our web site. 

To start, we recommend you refer to the Getting Started (Beginners Guide) brochure and use the MeteorCalc_SL_Example_1_Street_Lighting.dwg file. This step by step example is adapted for the trial version.

Known Issues

Street lighting feeders should have a tree-shaped structure and should not have closed contours.


Company Name: MeteorOwl OÜ
Support Contact:

Author/Company Information

MeteorOwl OÜ

Support Information

We provide free online support for all our products, including trial and paid versions.

Support page: 

E-mail support: 

Version History

Version Number Version Description


Initial release
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