From Motors and Drives

Eddy Current Generation
The rotating stator magnetic field and induced voltage in the rotor bars also causes voltage in the stator and rotor cores. The voltage in these cores cause small circulating currents to flow. These currents, called eddy currents, serve no useful purpose and result only in wasted power. To reduce these currents, the stator and rotor cores are constructed with laminations. (discussed in the previous section). These laminations are coated with insulating varnish and then welded together to form the core. This type of core substantially reduces eddy current losses, but it does not eliminate them entirely.

© 2003 ISA

Products & Services
Electrical Winding Services
Companies that specialize in the fabrication of custom wound assemblies for a wide range of electrical applications and industries. Electrical winding services also includes the repair and refurbishing of individual wound components.
AC Motors
AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  
RF Inductors
RF inductors are special inductors designed to be used in radio frequency (RF) and microwave applications.
Eddy Current Proximity Sensors
Eddy current proximity sensors and switches detect the proximity or presence of a target by sensing the magnetic fields generated by a reference coil.

Topics of Interest

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