HVAC & Home Appliances
Simulating Global Power Grids for Smart Appliance Testing
2025/03/14View
AFV Series: The Essential AC Power Source for Advanced Fan Testing
2025/05/26
Industrial fans play a critical role in manufacturing, plants, and HVAC systems. Given their widespread use, performance and reliability are key. Evaluating fan performance requires thorough testing of key metrics like airflow, pressure, efficiency, noise levels, vibration, and locked-rotor current.
Traditional power supplies, however, often fall short in testing environments. Issues such as high-frequency noise from square-wave voltages and harmonic distortion can compromise data accuracy and make it difficult to meet compliance standards. To address these, Preen's AFV series high-power programmable AC power source offers a smarter, more reliable test method.
AFV Series Technical Advantages
The AFV Series is engineered for precision and efficiency:
- Pure Power Output
Conventional inverters generate waveforms with high-frequency components, leading to electromagnetic interference, equipment errors, and power grid distortion. The AFV Series, however, delivers a clean sine wave output with total harmonic distortion as low as ≤1%, effectively eliminating the noise and inaccuracies that plague traditional setups.
- Soft Start Function
At startup, fans can draw 3 to 7 times their normal current, creating sudden electrical surges that strain traditional power supplies. The AFV series'soft start function addresses this by gradually ramping up current using fixed or variable frequency modes. This minimizes inrush current and protects against overloads, all while meeting the startup test requirements of GB/T 1236-2014.
- Ramp Mode
The AFV's touchscreen interface provides access to its Ramp Mode, allowing for precise voltage or frequency ramp simulation. This is essential for compliance testing with standards like GB 10178-2006, which requires continuous operation at 90% to 110% of rated voltage for 90 minutes. It also supports locked-rotor testing per GB/T 1032-2012 by simulating voltage drops at rated frequencies until the stator current hits target levels. Users can easily set upper and lower voltage limits and ramp duration, helping them pinpoint ideal test conditions with automated data capture and analysis.
Optimize Fan Testing with Preen's AFV series
The AFV Series high-power programmable AC power source features pure output that eliminates harmonic interference, soft start function mitigates high current surges, and its ramp mode adapts to complex test scenarios, making it stand out as a core technical tool for fan testing.
