| Series |
WS.Fans Series |
| Model |
WS9 |
WS8 |
| Specification/ Diameter(m) |
2.8 |
2.5 |
| Speed(rpm) |
10-110 |
10-120 |
| Full-load air volume(m3/min) |
4950 |
4400 |
| Coverage area(m2) |
380 |
330 |
| Rated power(kw) |
0.4 |
| Average consumption (kW·h) |
≤0.4 |
| Noise(dB) |
≤38 |
| Power supply(V) |
220S |
| Full-load current(A) |
2.0 |
| Total weight(kg) |
36 |
33 |
In addition, Dawang HVLS energy-saving large fan adopts PMSM permanent magnet synchronous motor technology, which has the advantages of energy saving, low noise and easy maintenance. Dawang Industrial Big Fan has an effective coverage of more than 1000m ² per unit, with an average energy consumption of less than 0.8 kWh per hour. Its high efficiency and energy saving features reduce the operating cost of the venue.
1. Motor efficiency
-Definition and Principle
-Motor efficiency refers to the ratio of the output mechanical power of the motor to the input electrical power. High-efficiency motors reduce the energy loss inside the motor by optimizing the electromagnetic design of the motor and selecting high-quality materials, such as copper loss (loss caused by winding resistance) and iron loss (hysteresis and eddy current loss in the iron core). For example, the use of new silicon steel sheet materials can reduce iron loss and improve motor efficiency.
-Impact of efficiency on energy consumption
-When an inefficient motor is running, a large amount of electrical energy will be converted into heat energy and wasted. For example, a motor with an efficiency of 80% consumes more power at the same output power than a motor with an efficiency of 90%. If the motor power of a large industrial fan is 1.0kW and runs for 1000 hours, a motor with 80% efficiency consumes about 125 degrees of electricity more than a motor with 90% efficiency.
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