Application Pages

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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Using the Mesh Layers feature on Nondestructive Testing Problems

For NDT problems, there is a need to model the magnetic fields and eddy currents accurately in the regions under inspection. The fields decay rather quickly to zero in the surrounding regions. Further, the fields tend to change very quickly (exponential decay) with increasing depth into the test specimen (skin depth effects), and not nearly as rapidly in the two perpendicular directions. The Mesh Layers feature allows the construction of a mesh that is optimized for these types of problems.

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Vibrations in Electric Motors

In this case study we consider a 4-pole-24-slots electric motor, which is modeled in MagNet by a quarter section. The rotor rotates with a frequency of 30 Hz and the coils exhibit an odd parity. We are interested in the vibrational behavior of the full stator.

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Voice Coil Actuator

The Voice Coil Actuator is a high precision motion control device. These actuators are capable of both low speed, low acceleration movements as well as high speed, high acceleration movements. Programmable servo controls allow the actuator to carry out a move profile as required. Its primary advantage over other motion control devices is that the load is directly coupled to the actuator.

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WFNDEC Benchmark Problem 2 - Eddy Current Inspection of Inconel Pipe

WFNDEC's1 Eddy Current Benchmark Problem 2 involves the inspection of an Inconel pipe using an internal pancake coil situated with its axis perpendicular to the axis of the pipe. Small defects of various depths in the external wall of the pipe are scanned in the axial and circumferential directions. Defects are detected as a change in the impedance of the coil.

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Winding Layouts, Analysis and Short Pitching of a Brushless DC motor

One of the most important aspects of motor design is to choose the correct winding layout. For a given pole-slot combination and winding type, MotorSolve BLDC automatically computes and gives the designer the option of choosing from a selection of balanced - all phases with same back emf and out of phase by 120 degrees. For each of these layouts the back emf, back emf harmonics and winding factors are also readily available for analysis.

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Wound Rotor Synchronous Machine for Traction Application

An example of an 8 pole 48 slot wound rotor motor is considered for traction based on the design of a similar interior permanent magnet (IPM) machine.

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