EET

Magnet motor represents 52 percent weight reduction

The W Magnet Drive System incorporates the W Magnet Drive inside the motor, which is controlled by the CFW11 variable frequency drive (VFD). Compared with standard induction motors, the W Magnet motor promotes a 52 percent reduction in weight and a 47 percent reduction in volume. The motor is fitted with NdFeB magnets, inserted inside the rotor, instead of conventional aluminum alloy squirrel cages. Replacing the squirrel cage with the W Magnet technology ensures both higher efficiency levels and a much smaller frame than conventional induction motors. The system meets both NEMA Premium and EPAct High Efficiency standards.

For precision control and optimum energy efficiency, the CFW11 drive used with the W Magnet Drive System uses WEG’s unique vector control technology algorithm. This enables control without the use of an encoder / position sensor, and by reducing the number of components, helps improve reliability. For applications within buildings or other sensitive areas, the W Magnet motor features significant noise reduction to under 73dB(A).

Standard Technical Features W Magnet Motor:

• Frames – 213T to 404/5T
• Output – 15 to 200 HP
• Voltage – 460V

CFW11 VFD:
Output – 20hp to 200hp (11kW to 160kW)
• Voltage – 380 to 480V
• Easy to program (same programming as all WEG drives)

For more information on the new W Magnet Drive System, please visit http://www.weg.net or call 1-800-ASK-4WEG.

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