All Low Frequency Applications

3D Non-linear Transient Simulation of an SF6 550 kV 3-Phase Gas Insulated Bus

The combination of non-linear materials and eddy currents leads to a problem which cannot be solved with a steady-state eddy current solver. A transient solver is required and and inherently includes the feature that arbitrary time signals can be used for the excitation. The CST EM STUDIO® (CST EMS) transient solver allows such a simulation to be carried out. In this case, a Gas insulated Bus under short circuit conditions is investigated. The forces and losses on the bus bars can be calculated as a function of time. Read full article..

3D EM Simulation of a resistance spot welding gun

This article is concerned with the 3D electromagnetic modelling and equivalent circuit parameter extraction of a Resistance Spot Welding (RSW) gun. The parameters for the gun are not as easily established for the gun as for other RSW system components. The current transformer and electronic converter electrical parameters are either known or can be obtained by standard test procedures. This is not the case for the gun where the electrical parameters are unknown and difficult to measure. A 3D EM simulation using CST EM STUDIO® can be used to establish these parameters and complete the system characterisation. Read full article..

Low frequency simulation of a Gas Insulated Switchgear

The simulation of a gas insulated switch at 50 Hz is simulated with the low frequency solver in CST EM STUDIO™ (CST EMS). A Pro/E® model is imported, appropriate three-phased sources defined and a simulation performed to obtain the current distributions in the three phase conductors. Read full article..

Electroquasistatic Simulation of a High Voltage Insulator

This article demonstrates the application of the CST EM STUDIO™ (CST EMS) electroquasistatic (EQS) solver to the simulation of a high voltage insulator. It also demonstrates the difference between the results obtained from the EQS Solver and Electro-Static Solver. Read full article..

TEAM Benchmark 7 - Asymmetrical conductor model with a hole

This article presents the results of a CST EM STUDIO™ (CST EMS) low frequency simulation of the TEAM Workshop Benchmark 7. The excellent simulation performance of the low frequency solver is demonstrated. Read full article..

TEAM Benchmark 8 - Non-destructive testing example : Coil above a crack

The TEAM Workshop Benchmark Problem no. 8 - Coil above a crack - is solved with CST EM STUDIO™. Results are compared with measurements. Read full article..