YJTKK 400-4 560kW Variable Frequency Drive Motor 3 Phase 50Hz

Brief Introduction

Xi'an SIMO Motor unveils the YJTKK series variable frequency drive motor, a sophisticated high-tension three-phase asynchronous induction motor engineered exclusively for variable-speed heavy industrial operational regimes. Epitomized by the benchmark model YJTKK400-4, this heavy-duty prime mover incorporates an integrated air-water composite cooling architecture, engineered to pair synergistically with high-voltage frequency converters. It caters to pivotal sectors encompassing metallurgy, mineral exploitation, chemical processing, hydraulic engineering and heavy mechanical transmission. Furnished with consummate electromagnetic design and robust mechanical frameworks, the unit impeccably fulfills the energy conservation and stepless speed modulation imperatives of contemporary heavy industry, emerging as an indispensable core power apparatus for full-spectrum variable-frequency transmission ecosystems.

This variable frequency drive motor boasts unparalleled adaptability to dynamic speed modulation and unwavering operational steadfastness. It facilitates an extensive adjustable frequency bandwidth spanning 5 to 50 Hz, sustaining constant torque output at low rotational velocities without perceptible torque depreciation. Equipped with Class F insulation (thermal classification TH 155), its stator windings exhibit formidable immunity to harmonic distortion emanating from frequency converters, mitigating latent perils of thermal overload and dielectric degradation amid prolonged variable-frequency cycling. The exemplar YJTKK400-4 variant flaunts a nominal voltage of 10 kilovolts, a rated power output of 560 kW, an ultra-high energy efficiency coefficient peaking at 93.3%, and complies with S1 continuous-duty operational standards, rendering it apt for round-the-clock full-load sustained service. For arduous heavy-load initiation contexts, its refined starting torque calibration circumvents winding ablation triggered by protracted voltage-reduction startup durations, resolving a prevalent technical bottleneck plaguing conventional fixed-speed high-voltage dynamotors.

In thermal dissipation and bearing assembly, the dynamotor deploys an amalgamated air-water cooling circuit; circulating coolant must be pre-charged in strict accordance with nameplate stipulations prior to commissioning to perpetuate optimal heat evacuation efficacy. It is outfitted with heavy-duty anti-friction bearings: drive-end NU224ECM and non-drive-end 6224C3, facilitating uninterrupted long-duration operation under composite grease lubrication protocols. Boasting an IP55 ingress protection rating and a 40°C ambient temperature tolerance threshold, it endures austere workshop conditions characterized by dust accumulation, elevated humidity and thermal surges. In installation protocols, the motor interfaces with driven machinery via rigid couplings, mandating stringent coaxial alignment during assembly; no-load winding earthing operation is categorically proscribed to eradicate latent safety liabilities. Endorsed with CE accreditation, the apparatus adheres to stringent international electrical safety benchmarks, facilitating cross-border deployment for global industrial capital projects.

As an elite heavy-duty power solution, the SIMO YJTKK series variable frequency drive motor yields conspicuous energy-retention dividends for variable-speed capital equipment including large-scale ventilators, centrifugal pumps, compressors and rolling mills. Its high-voltage configuration curtails power conversion intermediary losses, while electromagnetically optimized low-vibration, low-acoustic-noise design ameliorates on-site occupational ergonomics. Manufactured by Xi'an SIMO Motor, a venerable OEM specializing in large-scale industrial dynamotors, every unit undergoes exhaustive performance calibration prior to shipment, accompanied by complete parameter traceability and full-lifecycle bespoke technical aftersales stewardship. Synthesizing premium energy efficiency, rugged structural longevity and versatile stepless speed regulation, this lineage of variable frequency drive motors constitutes the quintessential procurement option for high-power variable-frequency transmission ventures across the globe.

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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