Relays and Contactors

Reed Switch under the influence of the magnetic field produced by a coil.

For design analysis purposes, relays and contactors can be separated into two categories:

  • DC Relays and Contactors:
    Typically AMPERES (3D simulation) will be required. MAGNETO (2D/RS) may be used if rotational symmetry is present.
  • Induction Motors:
    Since the force produced by the shaded pole is due to induced eddy currents, a time harmonic analysis is required. Typically FARADAY (3D simulation) will be required. OERSTED (2D/RS) may be used if rotational symmetry is present.

Simulations using INTEGRATED software permit determination of armature forces and/or torques as well as equivalent circuit parameters.

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