WDS Series Double Speed Three Phase TEFC Induction Cast Iron Motors

Product catalog summary

Overview: The WDS Series motors are double-speed, three-phase, Totally Enclosed Fan Cooled (TEFC) induction motors made from cast iron, suitable for industrial applications such as fans, pumps, and machinery in sectors like petroleum, chemical, and cement industries. They achieve multi-speed functionality by altering the number of poles, with options for two separate windings or Dahlander connections.

Technical Characteristics:

Protection: IP55
Insulation: Class F
Temperature Rise: B-level
Duty: S1
Rated Voltage: 400V
Rated Frequency: 50Hz
Ambient Temperature: -20°C to 40°C
Altitude: ≤1000m
Connection: Y-connection for motors up to 3kW, Δ-connection for 4kW and above
Cooling Method: IC411/IC416

Mounting Arrangements: Various mounting configurations are available, including IM B3, IM B35, IM B5, with specific configurations requiring inquiry.

Performance Specifications: Detailed tables provide technical specifications for different motor configurations, including output power, frame size, rated speed, efficiency, power factor, current, torque, moment of inertia, and weight. These vary based on pole configuration and connection type.

Key Data Insights: The motors offer high efficiency and power factors, with varying torque and current ratings suitable for different industrial applications, designed to operate efficiently under different load conditions.

Specifications and Recommendations: The document recommends NU bearings for high radial force and outlines different winding configurations, including Constant Torque Dahlander Windings, Constant Power Dahlander Windings, and Two Separate Windings, each with its own connection diagram.

Contact Information:

Fuzhou Wonder Electric Co., Ltd.: Fuzhou Development Zone, Fujian, China. Website: www.wonderfz.com, Email: [email protected], Tel: +86-591-83998899, Fax: +86-591-83998666.
Wonder Electric Co., Ltd.: Fuan Electrical Machinery and Appliances Zone, Fujian, China. Website: www.wonder-cn.com, Email: [email protected], Tel: +86-593-6379666 6379988, Fax: +86-593-6379999.
Wonder Electric Motor (M) Sdn. Bhd.: Taman Meranti Jaya Industrial Park, Puchong, Selangor, Malaysia. Email: [email protected], Tel: +603-8063-9399, Fax: +603-8060-8399.
Wonder Electric Motor (S) Pte. Ltd.: Neythal Road, Singapore. Email: [email protected], Tel: +65-6265-8698, Fax: +65-6265-6589.

Catalog excerpts

WDS Series Double Speed Three Phase TEFC Induction Cast Iron Motors-1

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WDS Series Double Speed Three Phase TEFC Induction Cast Iron Motors-2

General Information: WDS Series are cast iron motors with multispeed, which is realized by changing the numbers of poles. The motors can have two separated windings or Dahlander connection, which is suitable for various loads. WDS Series are suitable for fan drive with constant power, constant torque, depending on user's option of load and control circuit. Wonder three phase asynchronous motors are widely applied in general machinery and industries such as pumps & water treatment, road machinery, petroleum, chemical & metallurgy, cement and papermilling. Technical Characteristics: • IP55 protection,...

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Output Power

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Mountinq and Overall Dimensions (mm) Frame Size A B C D E F G H K DH GA AA AB AC AD HD L

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Mounting and Overall Dimensions (mm) Frame Flange Size Size D E F G M N P S T DH GA AC HF L

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Mounting and Overall Dimensions (mm) Frame Flange Size Size D E F G M N P R S T DH GA AC HF L H71-H90 without lifting bolt R=0 distance from flange to shaft shoulder

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The motors above can be loaded directly. In case of high radial force, NU bearings are recommended. Constant Torque Dahlander Windings Connection Diagram Constant Power Dahlander Windings Connection Diagram Two Separate Windings Connection Diagram

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Fuzhou Wonder Electric Co., Ltd. Add: No. 120, Changyang Road, Fuzhou Development Zone, Fujian, China Website: www.wonderfz.com Email: [email protected] Tel: +86-591-83998899 Fax: +86-591-83998666 Wonder Electric Co., Ltd. Add: No. 239, Xingda Road, Fuan Electrical Machinery and Appliances Zone, Fujian, China Website: www.wonder-cn.com Email: [email protected] Tel: +86-593-6379666 6379988 Fax: +86-593-6379999 Wonder Electric Motor (M) Sdn. Bhd. Add: No.11, Jalan Meranti Jaya 16, Taman Meranti Jaya Industrial Park, 47120 Puchong, Selangor, Malaysia Email: [email protected] Tel:...

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