HV AC Brushless Asynchronous Induction Motors

AIMIN ELECTRICS CO., LTD. is one of the leading manufacturers and suppliers of hv ac brushless asynchronous induction motors 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

The YR-900-8 brushless asynchronous induction motors address critical end-winding vibration risks through reinforced structural integration. Its stator employs slot reinforcement rings and epoxy-molded nose joints to withstand startup electromagnetic forces (dF=IdLB) during locked-rotor conditions.

This brushless asynchronous induction motors feature multi-layer bracing:

Glass-fiber binding systems securing phase connectors

Non-magnetic end-rings eliminating eddy-induced heating

Pre-impregnated filling interstitial voids

Advanced insulation protocols include:
Slot Enhancement: Mica-based armor extending 50mm beyond core ends
Corona Suppression: Conductive tapes grading electrical stress at transition zones
Thermal Management: Open radial ventilation maintaining ≤80°C hotspot differential

The windings undergo vacuum pressure impregnation (VPI) followed by rotational curing to ensure unity between conductors and insulation. For 2-pole high-speed applications, dynamic balancing achieves G2.5 vibration levels despite inherent 100Hz magnetic pulsations. Validation testing confirms:

Withstands 5× rated current during 10-second stalled starts

No resonant frequencies below 120Hz in end-winding assemblies

Partial discharge <5pC at 2Uₙ+1kV

This brushless asynchronous induction motors delivers exceptional reliability for compressor and pump drives where winding fatigue historically caused failures. Maintenance protocols mandate biennial torque checks on bracing systems and annual thermographic inspections.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC and NEMA installation dimensions available

• Customizable outlook and dimensions

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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 high quality silicon steel rotor core to assure induction efficiency

• Well and 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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Applications

Cement

Power station

Steel

Sugar

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