Three-phase asynchronous motor 380V YRQ 138-8-245KW-380V-IC01-B3

Modular, compact design with base made from high quality materials. Some models use welded sheet steel box construction, providing high rigidity, excellent vibration resistance and light weight. Installation is primarily done using a horizontal configuration with IMB3 pole mounts, however vertical installation can be configured to suit different work layout requirements.

Protection degree: IP20, cooling method: natural ventilation cooling IC01. Air is drawn in through intake ports on the end caps on both sides, circulated through the rotor fan and radial vent slots, and then exited through the side exhaust ports on the frame. This provides a rational path for heat dissipation.

This three-phase wound rotor induction motor uses copper wire rotor windings. Current is supplied to the external circuit through slip rings and brushes, and the design makes it easy to connect starting resistors in series. The stator uses high-permeability, low-loss cold-rolled silicon steel plates. Combined with Vacuum Pressure Impregnation (VPI) technology, Class F insulation is achieved, increasing reliability and service life.

Soft starting is achieved by inserting resistors into the rotor circuit, which limits the starting current to 1.3 times the rated current and significantly reduces the impact on the network. Provides high starting torque, reaching 2-3 times the rated torque, easily driving heavy equipment with high inertia such as ball mills, crushers and winches. Ensures reliable starting even at low mains voltage. Supports 5-10 consecutive heavy starts, meeting the requirements of applications with frequent starts and stops without the need for longer intervals.

Class F insulation combined with Class B temperature rise testing standards provides sufficient thermal margin to ensure long-term stable performance in harsh industrial environments with exceptional durability and wear resistance. High precision processing in combination with rolling bearings filled with lithium grease ensures low vibration and noise levels during operation, which reduces equipment wear.

As an advanced energy-saving motor, the optimized electromagnetic design minimizes iron and copper losses, providing significantly higher energy efficiency compared to traditional wound-rotor motors. Long-term operation significantly reduces operating costs. Widely used in metallurgy, chemical industry, petroleum production, mining and mechanical engineering, it drives a variety of equipment including fans, compressors, water pumps and transport vehicles.