Computer simulations (modelling), field measurements

We perform for leading companies in numerous industries, computer simulations (modelling) and measurements and summarize the results in a detailed test report.

Computer simulations (modelling)

Computer simulations make it easier to exactly determine the transient current and computer simulationvoltage distribution for complex installations. With this method, the time characteristic of the partial lightning currents can be displayed in an equivalent circuit diagram using SPICE network analysis software. This allows to efficiently select protective devices in technically and economically optimal way.

The computer models for lightning current distribution developed by DEHN were verified in laboratory tests and with triggered lightning currents at a transmitter mast of the Brazilian lightning research station Cachoeira Paulista. The results of these tests were presented in numerous scientific publications. The procedure for modelling and calculating the lightning current distribution is also described in supplement 1 of the German DIN EN 62305-4 standard.  This method was successfully used in numerous applications such as in railway, photovoltaic and telecommunication systems.

Current distribution in special structures:field measurement

  • Externally arranged equipment and insufficient separation distance
  • High buildings
  • PV systems with LPS and insufficient separation distance
  • Free field PV systems
  • Power stations
  • Transformer in a building


Field measurements

Tests on real installations allow to analyse the special operating conditions for protective devices. The DEHN test centre features modern equipment and mobile test generators for such field measurements.