With transformers and chokes for power electronics, Wagner + Grimm AG pushes the limits of the technically feasible to generate maximum performance and power
density. The interplay between technology, materials and know-how enables Wagner + Grimm AG to offer its customers solutions that are tailored to their needs.
These chokes are made without a magnetic core and therefore have no core losses.
The circular arrangement of the coil greatly reduces the leakage flux compared to a cylindrical coil. Mechanical fixing of the coil gives the structure good mechanical damping
Five-arm chokes are compact three-phase chokes with additional arms that allow asymmetries. The external arms absorb the residual fluxes and produce higher common-mode inductivity.
These products are suitable for voltage transformations over a wide range of frequencies. Besides ferrite, other materials such as amorphous-metal laminations, powder, or special
silicon laminations are used for the cores.