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The YEJ2 electromagnetic brake AC induction motor boasts a 380V rating, IP44-IP55 protection, and insulation classes B-H. Designed for reliability and efficiency, it features ICO141 cooling, S1 duty, and variable connection methods. Key features include high durability, energy efficiency, and advanced safety measures to prevent potential fire risks.
Product Specification of the YEJ series
|
Parameter |
Specification |
|
Motor Type |
YEJ2 Electromagnetic Brake AC Induction Motor |
|
Rated Voltage |
380V |
|
Rated Frequency |
50Hz、60Hz |
|
Protection Class |
IP44、IP54、IP55 |
|
Insulation Class |
B、F、H |
|
Cooling Method |
ICO141 |
|
Duty |
S1 (continuous) |
|
Connection |
Star-connection (up to 3kw), Delta-connection (4kw and above) |
|
Remark |
PTC and re-greasing system available for specific frame sizes |
Product Features and Advantages of the YEJ series
Product Features
1. Reliability: The YEJ2 series is designed with utmost reliability in mind. Featuring a robust mechanical structure, premium manufacturing techniques, and top-notch materials, this motor promises durability and longevity for demanding applications.
2. Efficiency: Boasting high energy efficiency, the YEJ2 series offers an impressive torque-to-inertia ratio. Its outstanding insulation properties, combined with minimal noise and vibration levels, ensure a smooth and quiet operational experience, reducing energy consumption.
Production Process
1. Stator and rotator fabrication using superior Wugang 800 material.
2. Winding for both the stator and the rotator.
3. Application of Class H insulation through painting.
4. Motor assembly.
5. Canopy painting for enhanced protection.
6. Comprehensive full-load testing.
7. Packaging in a robust plywood box for safe transportation.
YEJ Motor Fire Risks and Prevention
Causes for YEJ Motor Fires
1. Internal Short Circuit: Damaged insulation due to factors such as moisture, aging, overvoltage breakdown, or mechanical damage can lead to internal short circuits. This results in a rapid rise in motor temperature and potential sparking, ultimately causing fires.
2. Loss of Phase Operation: In scenarios where the three-phase asynchronous motor operates with a phase loss, the current can surge to 1.73 times the rated value under full load. If started in a locked-rotor state, the current can even reach 4 to 7 times the rated value, leading to overheating and potential winding burnout.
Preventive Measures
1. regular maintenance and inspection to identify and address potential issues.
2. Ensure proper installation and operation, following manufacturer guidelines.
3. Monitor motor performance, temperature, and vibrations to detect anomalies early.
4. Use protective devices like PTCs and re-greasing systems for enhanced safety, especially for larger frame sizes.By adhering to these guidelines and understanding the inherent risks, users can ensure the safe and efficient operation of YEJ2 series motors.
