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Transformers
3-phase Transformer
The model presented here is the simulated results of the ohmic losses and flux density of a 3 phase transformer with a three limbed paramagnetic core. The symmetry in the z-axis has been used to minimize the problem size and accelerate solution time. The coils are made of three concentric layers of different thickness.
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Transformer bushings
In this example, the transformer busing consists of nine foils of various lengths that are placed inside of epoxy-resin impregnated paper (ERIP) at specific locations in order to minimize the maximum electric field, E.
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TEAM-based Benchmark Family: Problem 21b - Field Loss in Power Transformer
Shielding can be used to substantially reduce magnetic field strengths outside of a transformer. Considerations, such as its electric properties and geometry, are needed to determine the type of shielding required.Presented here is MagNet's analysis of two coils directed in opposite directions and shielded by a pair of conducting steel plates. The shield has three configurations; one magnetic and one non-magnetic conducting plate (MN), two magnetic conducting plates (2M) and two non-magnetic conducting plates (2N). The nonlinear eddy current and hysteresis losses are compared in both configurations to measured results.
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TEAM-based Benchmark Family: Problem 21 - Field Loss in Power Transformer
Presented here is MagNet's analysis of the first set of configurations from the family of benchmarks involving two coils directed in opposite directions and shielded by magnetic steel plates. The magnetic shield has two configurations; one large magnetic steel plate or two smaller magnetic steel plates, where one of the plates has a rectangular hole. The nonlinear eddy current and hysteresis losses are compared in both configurations to measured results.
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TEAM-based Benchmark Family: Problem 21a - Field Loss in Power Transformer
Presented here is MagNet's analysis of the second set of configurations from the family of benchmarks involving two exciting coils directed in opposite directions and shielded by a non-magnetic steel plate. The steel plate has four configurations; no slot, one slot, two slots and three slots. The eddy current losses are compared in all configurations to measured results.
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