YJTKK355-6G T1 VVVF Three-phase Asynchronous High Speed 3 Phase Motor 280kw 990rpm

AIMIN ELECTRICS CO., LTD. is one of the leading manufacturers and suppliers of yjtkk355-6g t1 vvvf three-phase asynchronous high speed 3 phase motor 280kw 990rpm in China. With abundant experience, we are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk premium products made in China here and get quotation from our factory.

Brief Introduction

As a robust high speed 3 phase motor from Xi'an AIMIN ELECTRICS, the YJTKK series variable‑frequency three‑phase asynchronous motor is purpose‑built for heavy‑duty high‑voltage variable‑speed industrial applications. Tailored for VVVF drive operation, this motor runs on S1 continuous duty cycle, supporting a broad frequency adjustment range of 5 Hz‑70 Hz with rated voltage of 10kV. Delivering up to 280 kW power output and reaching 91.7% operating efficiency, it greatly cuts energy loss for fans, pumps, compressors and process‑driven machinery. It features IP54 protection grade, IC666 internal‑air‑to‑air cooling and IM B3 horizontal mounting. With thermal class 155, it performs steadily in ambient temperatures from ‑15℃ to 40℃ and adapts to working altitudes up to 1100 m, showing outstanding environmental adaptability for diverse factory sites.

Reliable mechanical structure is the core advantage of this high speed 3 phase motor. It adopts NU222ECM bearing at drive‑end and 6222/C3 bearing at non‑drive‑end, suppressing vibration and noise during variable‑frequency speed shifts and extending overall service life. The stator is designed for 10 kV high‑voltage input with star connection, rated current 22.0 A and power factor 0.80. It produces 2674 N·m rated torque and maintains consistent torque performance across the full variable‑frequency range, avoiding insufficient torque under low‑speed working conditions. Manufactured under strict internal standard Q/XD.510.316, each motor goes through comprehensive factory tests. Its heavy‑duty 2770 kg frame delivers high mechanical rigidity to withstand impact loads, making it well‑suited for sugar plants, chemical facilities, mining sites and power generation industries with harsh operating conditions.

Global industrial customers prefer this high speed 3 phase motor for its flexible speed regulation and proven field stability. Different from conventional fixed‑speed motors, it achieves stepless speed control via frequency converter, eliminating complicated mechanical speed‑change accessories and matching variable‑load production requirements. It carries CE certification to satisfy overseas market access requirements. Whether you are executing new project procurement or upgrading existing drive equipment, YJTKK serves as a trusted high‑voltage VVVF motor solution. Every unit is assigned a unique production serial number for full‑lifecycle traceability, paired with complete technical documentation and after‑sales support from AIMIN ELECTRICS. It brings long‑term, cost‑effective and low‑maintenance operation for worldwide industrial end‑users and system integrators.

Main Technical Parameters

Production Details

Frame

• Box structure frame, easy for maintaining and installation

• Flexible dimensions

• Customizable outlook

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Stator

• 99.9% pure copper winding ensures 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 possible winding flaw.

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Rotor

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

• Copper bar rotor is available for YJTKK motor

• Pprecisely machined shafts with good capacity of  toughness

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Testing

• All motors must pass the testing before painting and packaging

• We regularly test existing and new products to ensure quality.

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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

YJTKK Motor is the widely used in many general industries, such as blowers, pumps, crushers, cutting machines, and many other heavy machines. For more application details, contact us.

Cement

Power Station

Water conservation

Steel

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