Product Details

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

Product Name:	YR 380V Slip Ring HV Motor
Frame:	H355
Power Scope:	280-315KW
Voltage:	380V, 400V, 415V, 460V, 490V, 660V, 690V,1140V
Frequency:	50Hz, 60Hz
Number of Poles:	4P
Speed:	1480rpm
Cooling Method	IC01/IC81W
Protection Grade	IP23/55
Insulation Class	F(155℃), H(180℃)
Duty:	S1, S4, S5, S6, S9
Mounting Type	B3/ B5/ B35/ V1
Standard:	IEC
Efficiency Grade:	IE1