15KW 6-Pole Three-Phase Induction Motor Introduction

This 15KW three-phase induction motor is a high-performance heavy-duty drive unit, featuring a 6-pole configuration and a rated speed of 900 RPM—closely approaching the 1000 RPM synchronous speed under 50Hz three-phase alternating current (AC) power supply. Its core operation adheres to the principle of electromagnetic induction: when three-phase AC is supplied to the stator windings, a uniform rotating magnetic field (RMF) is generated, which cuts the rotor conductors to induce electromotive force (EMF) and eddy currents. The interaction between these induced currents and the RMF produces robust electromagnetic torque, driving the rotor to rotate asynchronously with a low slip ratio (3%-5% at rated load), ensuring stable power transmission for high-power low-speed equipment.

Structurally engineered for heavy-duty operations, the motor adopts a reinforced cast-iron frame with IP55 protection class, providing superior mechanical rigidity, dustproof, and waterproof performance to withstand harsh industrial environments such as heavy-duty workshops, mining auxiliary facilities, and high-humidity sites. The stator is equipped with high-purity oxygen-free copper windings encapsulated in Class F insulation material, boasting a thermal endurance temperature of 155℃, which minimizes copper loss and prevents insulation breakdown under long-term high-load conditions. The 6-pole rotor features a die-cast aluminum squirrel-cage structure with enhanced mechanical strength, paired with precision sealed deep-groove ball bearings lubricated by high-temperature lithium-based grease to reduce frictional loss and ensure smooth long-term operation.

Key performance parameters are calibrated for heavy-duty applicability: rated voltage 380V (50Hz), rated current approximately 29.8A, and a rated power factor of ≥0.86. It delivers a starting torque of 1.8 times the rated torque for reliable startup under heavy loads, with a maximum torque of 2.2 times the rated torque to cope with occasional load fluctuations. Compliant with IE3 high-efficiency standards, it minimizes energy consumption, with noise emission controlled at ≤78dB at 1m. Widely used in heavy-duty machinery, large-scale conveyors, and low-speed pumps, it supports both horizontal and vertical mounting. Regular insulation resistance testing (≥2MΩ at 500V DC) and bearing maintenance extend its service life, making it a durable and cost-effective heavy-duty drive solution.