摘要:
The YB2 series high voltage explosion-proof high-efficiency three-phase asynchronous motor is designed for hazardous and explosive environments. With a robust flameproof structure, high efficiency, and stable performance, it is widely used in coal mines, petrochemical plants, and other industries requiring safe and reliable motor operation.
YB2 Series High-Voltage Explosion-Proof High-Efficiency Three-Phase محرك غير متزامن – Professional Overview
إن YB2 series high-voltage explosion-proof high-efficiency three-phase asynchronous motor is a next-generation update to the YB series, specially designed for hazardous industrial environments such as petroleum, chemical, and coal industries. With excellent explosion-proof safety و high energy efficiency, it is the ideal motor for operation in explosive atmospheres.

1. Product Overview
The YB2 series is developed using advanced design concepts and manufacturing processes, featuring:
- Explosion-proof safety
- High efficiency and energy-saving
- Reliable operation
- Long service life
It strictly complies with:
- GB 3836.1-2000 “Electrical Equipment for Explosive Gas Atmospheres – Part 1: General Requirements”
- GB 3836.2-2000 “Electrical Equipment for Explosive Gas Atmospheres – Part 2: Flameproof ‘d’ Type”
Design Highlights:
- Conforms to IEC international standards و DIN42673 for frame sizes and mounting dimensions, facilitating export and compatibility with imported equipment.
- Fully enclosed, externally fan-cooled, squirrel-cage rotor design
- Features compact structure, high efficiency, high torque, excellent starting performance, low noise, and low vibration
2. Core Technical Features
1. Superior Explosion-Proof Performance:
- Explosion-proof certifications:
- ExdⅠ: Coal mine electrical equipment
- ExdⅡAT4 / ExdⅡBT4: Industrial factory equipment
- ExdⅡCT4: Locations with II A, B, or C explosive gas/air mixtures, T1–T4 temperature class
- Flameproof housing prevents internal explosions from propagating externally, ensuring safe operation in hazardous atmospheres
2. High Efficiency & Energy Saving:
- Optimized electromagnetic design and low-loss materials
- Maintains high efficiency across a wide load range
- Reduces operational costs and increases energy utilization efficiency
3. Robust Structure:
- Fully enclosed structure: IP55 protection, dust- and water-resistant
- F-class insulation system: Ensures stability under high temperature, rated at 80K temperature rise
- Optimized cooling: IC411 self-ventilated design for efficient heat dissipation
3. Technical Specifications
| Parameter | Specification |
|---|---|
| حجم الإطار | H63–H355 |
| الفولتية المقدرة | 380V, 660V, 380/660V (custom up to 1140V) |
| التردد المقدر | 50 هرتز |
| Protection | IP55 |
| Insulation | F-class |
| Cooling | IC411 (TEFC) |
| Duty | S1 (continuous) |
| Mounting | IMB3, IMB5, IMB35 |
Performance Features:
- High efficiency reduces energy consumption
- Low vibration and noise for smooth, quiet operation
- Wide voltage adaptability for stable performance under various grid conditions
4. Structure & Configuration
Motor Body:
- Flameproof enclosure designed to withstand internal explosion pressure
- Frame with parallel cooling fins; terminal box located on top for easy wiring and maintenance
- Terminal box supports one- or two-voltage wiring schemes
Internal Components:
- Stator: F-class insulation, reliable and long-lasting
- Rotor: Precision-manufactured, dynamically balanced for smooth operation
Cooling:
- IC411 self-ventilated cooling ensures efficient heat removal under continuous load
5. Applications
Petroleum & Chemical Industry:
- Drives oilfield drilling and extraction equipment
- Chemical plant pumps and compressors in explosive environments
صناعة الفحم:
- Underground coal mine equipment for methane and coal dust environments
- Coal processing and preparation machinery, dust-resistant
Other Hazardous Environments:
- Industrial sites with explosive gas mixtures
- Special environmental variants: Outdoor (W), humid/tropical (TH), outdoor humid/tropical (WTH), etc.
6. Advantages & Value
Safety & Reliability:
- Strict compliance with explosion-proof standards
- High-الجودة materials and precision manufacturing for long-term reliability
- H180+ frame motors equipped with oil injection/drain system for maintenance and extended service life
High Efficiency & Cost Savings:
- Reduces operational costs through high efficiency
- High power factor improves grid performance and reduces reactive power compensation
- Low total lifecycle cost despite slightly higher initial investment
Maintenance Convenience:
- User-friendly design for easy inspection and maintenance
- Modular components reduce spare part inventory
- F-class insulation ensures long service life and extended maintenance intervals
7. Installation & Usage Guidelines
Environmental Requirements:
- Ambient temperature: -15°C to 35°C (coal mine) or 40°C (industrial)
- Altitude ≤1000m
- Max relative humidity: ≤95% (25°C) for mines; ≤90% monthly average for factories
Installation & Commissioning:
- Solid, level foundation to support motor weight and stress
- Precise alignment with driven machinery using couplings
- Electrical connections per nameplate and wiring diagram; ensure proper grounding
8. Service & Technical Support
Quality Assurance:
- Complies with GB3836 series and other relevant standards
- Strict testing during manufacturing to ensure compliance and reliability
After-Sales Service:
- Professional selection and installation guidance
- Rapid response to issues during operation
- Long-term technical support and service guarantee
Summary:
إن YB2 high-voltage explosion-proof high-efficiency three-phase asynchronous motor combines excellent explosion-proof safety, superior energy efficiency, and robust industrial performance, making it an ideal solution for hazardous industrial environments. Selecting YB2 ensures reliable safety, energy savings, and comprehensive technical support from Simo Motor, promoting safe production and energy-efficient operations in industrial applications.






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