Frequently Asked Questions (FAQ)
Q1: What is the basic description of the YBX3 series motor?
A: The YBX3 series is a high-voltage, explosion-proof three-phase asynchronous motor. It features a reasonable structure, advanced technology, and is known for its low noise, small vibration, and easy installation. It is primarily used to drive heavy equipment in explosive atmospheres.
Q2: What is the frame size and output power range?
A: The motor is available in frame heights (H) from 355mm to 630mm. The output power range is extensive, from 185 kW up to 2000 kW, making it suitable for a wide variety of high-power applications.
Q3: What are the voltage and frequency specifications?
A: It operates on a high-voltage supply, with a range from 3 kV to 13.8 kV. The rated frequency is 50 Hz.
Q4: What is the speed range available?
A: The motor is available with 2 to 12 poles. This corresponds to a range of synchronous speeds, from high-speed (e.g., ~3000 RPM for 2-pole) to lower-speed (e.g., ~500 RPM for 12-pole) applications.
Q5: What does "Explosion-Proof" and "IP55" mean for protection?
A:
- Explosion-Proof: The motor is certified for use in hazardous locations where flammable gases or dusts may be present. Its enclosure is designed to contain an internal explosion without igniting the surrounding atmosphere.
- IP55: This indicates a high degree of protection against solid objects and water. It is dust-protected (5) and can withstand water jets from any direction (5), ensuring reliable operation in harsh and dirty environments.
Q6: What are the insulation and cooling methods?
A:
- Insulation Class: The motor uses Class F/B insulation materials, which are designed to withstand high operating temperatures, ensuring long service life and reliability.
- Cooling Method: It is TEFC (Totally Enclosed Fan Cooled), specifically IC411. This means the motor is completely enclosed and cooled by an external fan on the shaft.
Q7: What are the standard installation methods?
A: The standard installation types are IMB3 (foot-mounted, horizontal) and IMV1 (flange-mounted, vertical, with the shaft end down). This offers flexibility for different mechanical layouts.
Q8: What is the duty cycle and what are the operating environment conditions?
A:
- Duty Cycle: S1, which means it is designed for continuous operation.
- Ambient Temperature: It can operate in environments from -30°C to +40°C.
- Altitude: It is rated for installations at an altitude of less than 1000 meters above sea level.
Q9: Where is this motor typically used?
A: It is ideally applied to drive various high-power industrial equipment, including:
- Fan machines
- Compressors
- Pumps
- Crushers