Brief Introduction

The YR-355M-4 motor IP23 integrates comprehensive corona and vibration protection for high-voltage winding longevity. Its insulation system employs graded conductive coatings and low-resistance tapes to eliminate partial discharge, even under continuous operational vibration. This motor IP23 features vacuum pressure impregnation (VPI) with mica-based groundwall insulation, preventing surface tracking and internal ionization at voltages up to 6.6kV. Critical anti-vibration measures include:

Epoxy-bonded slot wedges securing coils against 100Hz electromagnetic forces

End-winding bracing with fiberglass lashings and non-magnetic supports

Isostatic core compression minimizing loose laminations

The IP23-rated enclosure provides adequate ventilation while excluding >12mm solid objects and vertical water jets-ideal for industrial environments where dust accumulation risks corona inception. Validation testing confirms:

Corona extinction level <1pC at 1.5Uₙ

Vibration velocity ≤2.8mm/s under full load (ISO 10816-3)

Thermal cycling endurance (-25°C to +40°C) without insulation delamination

Maintenance protocols include annual thermographic inspections for hotspot detection and triennial resistance testing (insulation >100MΩ). This motor IP23 delivers reliable performance in crushers, compressors, and pumps where combined electrical and mechanical stresses historically accelerated insulation failure.

Main Technical Parameters