Wound Rotor Induction

Brief Introduction

For YRKK900 wound rotor induction motor, the stator winding adopts 155 (F) class insulation material and conducts VPI treatment .VPI is the abbreviation of vacuum pressure Impregnating process, namely Vacuum Pressure Impregnating. VPI vacuum pressure impregnation equipment is an important process equipment in the production process of electrical and electrical materials such as high-voltage motors, transformers, power capacitors and paper-insulated high-voltage power cables. After VPI process treatment, the device will have good insulation performance, reduced temperature rise, improved efficiency, increased mechanical strength, it solves the loosening phenomenon during operation, prevents short circuit and other insulation faults, improves moisture resistance and extends service life.

VPI vacuum pressure impregnation equipment is an important process equipment in the production process of electrical and electrical materials such as wound rotor induction high-voltage motors, transformers, power capacitors and paper-insulated high-voltage power cables. Its working principle is to cool the workpiece after pre-drying to remove moisture, and place it in a vacuum environment to eliminate the air and volatiles inside the white coil, relying on the gravity of the paint liquid in the vacuum and the capillary action of the coil. And the use of dry compressed air or inert gas, after the removal of vacuum to apply a certain pressure on the impregnating liquid, so that the paint liquid quickly permeate and fill the inner layer of the insulation structure, in order to achieve the purpose of impregnating.

Main Technical Parameters

outline dimension

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC and NEMA installation dimensions 

• Customizable

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Stator

• 99.9% pure copper winding for stator to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.

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Rotor

• Aluminum casting rotor with silicon steel rotor core to assure induction efficiency

• Precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

The YRKK series motor is commonly used to drive water pumps, compressors, conveyors and other transmission machinery in different areas.

Chemistry

Power Station

Cement

Pump

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