Explosion Proof AC Motor

Featuring F/H-class enameled windings and VPI sealing, this explosion proof AC motor prevents inter-turn faults through harmonic-resistant design and environmental protection. Ensures reliable operation in corrosive/humid hazardous areas.

Send Inquiry

Description

Technical Parameters

Brief Introduction

Engineered for enhanced dielectric integrity, this explosion proof AC motor integrates advanced electromagnetic wire technology and structural safeguards to prevent inter-turn faults in hazardous environments.

Core Insulation Systems:

Thermal-Class Wire Selection: Utilizes F/H-class modified polyester (QZ(G)-155) and polyester-imide (QZY-180) windings, resisting thermal aging at continuous operation.

Mechanical Stress Mitigation: Reinforced slot liners and vacuum pressure impregnation (VPI) eliminate abrasion risks from vibration or loose windings.

Environmental Defense: IP55-sealed construction blocks moisture/chemical ingress, while corrosion-resistant enamel prevents hydrolysis in humid conditions.

Electromagnetic Stability: Harmonic-resistant winding configuration suppresses voltage spike damage from frequent starts/stops or VFD harmonics.

Manufacturing protocols include:
• Strict needle-hole tests ensuring uniform enamel thickness per IEC 60317
• surge comparison testing validating inter-turn insulation strength
• Optimized slot fill rate minimizing thermal hotspots and mechanical stress
• Anti-fretting coatings on winding ties preventing micro-abrasion

The 132-frame motor executes:

Real-time thermal monitoring via embedded PT100 sensors

Accelerated aging simulations for thermal cycles

Partial discharge detection terminals for predictive maintenance

Ground-wall insulation rated for 3kV RMS withstand voltage

Certified for Zone 1/21 explosive atmospheres (chemical/petrochemical), explosion proof AC motor extends service life through synchronous protection against thermal degradation, electromagnetic stress, and environmental contaminants. Excludes lower-class insulation materials like standard polyester (QZ-130) or acetal wires.

Main Technical Parameters

Frame	H132S
No. of Poles	2P, 4P, 6P, 8P
Power Scope	2.2~7.5kW
Voltage	380V/660V
Frequency	50/60Hz
Speed	750rpm, 1000rpm, 1500rpm, 3000rpm
Protection Grade	IP55
Insulation Class	F
Mounting Type	IM B3
Connection	Delta/Y
Mark of Explosion-proof	Exd I Mb, Exd II BT4Gb, Exd II CT4 Gb
Cooling Type	IC411, IC416
Efficiency Class	IE3
Duty	S1
Vibration	≤1.3mm/s
Ambient Temperature	-15℃ ～ +40℃
Altitude	≤1000m
Humidity	Average monthly peak relative humidity is 90%