primtech is an engineering software for the design, construction and documentation of substations (air-insulated switchgear).

High-voltage equipment, substructures, cable ducts, wires, tubes, clamps, roads and fences can be easily selected from a comprehensive library and placed as intelligent 3D objects on a voltage-dependent grid.

The automatic generation of BOMs and CAD drawings relieve the designer of routine tasks, shorten project run times and avoid errors. primtech supports the designer throughout all project phases and improves quality and consistency of the entire workflow.

primtech is the solution for substation BIM (Building Information Modeling) and has powerful integrated calculation tools like a Lightning Protection Calculation, Clearance Calculation and Short-Circuit Current – Calculation of Effects.

Benchmark tests have shown that primtech users are more than 15 times faster in some phases of the design of a switchgear project than when other, conventional CAD software tools for designing substations are used.

Users all round the world are enthusiastic about the functionality, which has grown over years and which offers project managers the quick overview they need to make the right decisions.


Digitalization and Industry 4.0 is the future – we support you to be ready and prepared. Listening to the needs of the substation industry is what has driven us in the last months to sprint and develop even more innovative methods and functionality in this direction. With primtech, we are proud to make the vision of a substation Digital Twin (BIM 7D) model a reality – even for already existing substations.

You will find in primtech 18 SP2 new functions – to use point clouds to create the substation BIM model, new special import and exports and the new integrated Drawing Converter. With our new primtech release 18 SP2, you will be ready for a BIM engineering workflow and the digitalization of substations.

What’s new in primtech 18 SP2:

OSR Technology has been optimized – within point cloud

In our OSR Technology – from a point cloud to a substation BIM model – our famous conductor recognition has been optimized even further and can now recognize conductors in point clouds even better. The conductor recognition plays a crucial role in the OSR Process as the first phase of the process and assists in the further automation.
Besides this, our innovative OSR Technology has, in general, been extended with new features and the input screen has been optimized. The results list can now be filtered according to additional attributes (e.g. Symbol type, Manufacturer …).

New Feature – Realistic Wires with Advanced Wire Mode
A new option has been introduced and can be called up on the wires – Curvature Type Advanced Modus. This modus allows the modifying of the position and curvature of the wires in space using grips (blue points). Any number of control points (grips) can be added or deleted. The entry tangent on both ends of the wire can be defined freely.

New Feature in Wire Connection Configurator – Number of Wires, Layout, Sag
The number of wires can be chosen between 1, 2, 3, 4, 6 and 8 wires. New is the wire layout – circular or linear. There is also the possibility to set the rotation offset of the wires in degrees. The sag of the normal wire can be set to 2 decimal points.

Lightning Protection according to IEEE 998
The lightning protection calculation according to IEEE 998 Standard is now more comfortable to use and can be selected directly in the input dialog.

Adjustments to HV-Cable and Conduits
The feature to insert HV-Cable and Conduits has been extended. The minimum bending radius can now be set to a value greater than that in the library. Additionally, a default radius can be set. If the situation allows, the default value will be used. If it does not fit, the largest fitting radius will be chosen until the minimum bending radius is reached. The desired radius for a segment can now be manually set.

New Import and Export Features in primtech + Drawing Converter
The new Drawing Converter is now available and optimizes the import of 3D geometries – “Import 3D Symbol”. E.g. for data originally created in MicroStation – and imports into primtech as DWG.
The new Drawing Converter allows as well the export, especially for Revit, Navisworks and Relux, using new default configurations. For example, matchcodes are included in the block, xref are bound and there are no longer problems with non-uniform scaled blocks.