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Ensuring the service life of winding systems in electrical machines at voltages up to 1500 V

Philipp MORITZ



The trend towards higher voltages is omnipresent in modern drive systems. As a result, the demands on the materials and insulation systems of the winding system are also constantly increasing. With electrostatic 2 and 3D JMAG simulations, the electric field strengths in the slot, at the slot exit and in the winding head can be calculated precisely and quickly. Due to the possibility to store all position information, the results can be transferred, discretized, scaled and the critical field lines can be determined by applying the Paschen curve. With this approach critical field areas can be quickly and easily identified and appropriate adjustments can be made to the insulation system.

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