YE three phase high efficiency AC motors technical dimension YE3 and YE4 Series
| Power | Series | EFF(%) | PF(cosφ) | Iron Loss(W) | Copper loss(W) | Max torque Rated torque |
| 11kW | YE3 | ≥91.5 | 0.85 | 120 | 380 | 2.5 |
| YE4 | ≥93.8 | 0.88 | 85 | 320 | 2.8 | |
| 75kW | YE3 | ≥94.7 | 0.91 | 450 | 1800 | 2.5 |
| YE4 | ≥96.5 | 0.93 | 320 | 1500 | 2.8 | |
| 250kW | YE3 | ≥96.0 | 0.92 | 1200 | 5200 | 2.5 |
| YE4 | ≥97.8 | 0.94 | 850 | 4500 | 2.8 |
YE Structure and reliability
1. YE3 series: "cost-effective choice", suitable for basic energy-saving needs high efficiency AC motors
Core scenario (runtime ≤ 6000 hours/year, electricity price ≤ 0.6 yuan/kWh):
Typical case:
A certain food factory replaced 20 11kW YE3 fans (formerly Y series) with an annual operation of 5000 hours. The electricity price was 0.55 yuan/kWh, and the annual electricity cost savings were 20 units x 11kW x 5000h x (91.5% -85%) x 0.55 yuan/kWh ≈ 39875 yuan. The investment payback period is about 2 years.
2. YE4 series Squirrel Cage high efficiency AC motors: "The ultimate energy-saving choice", suitable for high-yield scenarios
Core scenarios (running time ≥ 8000 hours/year, electricity price ≥ 0.7 yuan/kWh, policy mandatory):
Export equipment to Europe/North America (EU mandatory IE4, US ENERGY STAR certification requires IE4, YE4 Squirrel Cage can be directly met).
An induction motor or a application
Typical case:
A certain power plant has replaced 10 250kW YE4 high Efficiency AC motors circulating water pumps (formerly YE3), with an annual operation of 8760 hours and an electricity price of 0.75 yuan/kWh. The annual electricity cost savings are 10 units x 250kW x 8760h x (97.8% -96.0%) x 0.75 yuan/kWh ≈ 292620 yuan, and the investment payback period is about 1.8 years (although the initial cost is 25% higher than YE3, the energy-saving benefits are faster).
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