YE3 motor: Core Drivers and Selection Guidelines for Industrial Energy Efficiency Upgrades

In the context of today's “dual-carbon” strategy, the rising cost of industrial electricity is forcing manufacturing companies to re-examine the efficiency of their power systems. As the heart of industry, electric motors account for the vast majority of total industrial electricity consumption. For business owners and engineering buyers seeking to reduce costs and increase efficiency, theYE3 motorMore than just a technical term, it is a key key to realizing green manufacturing and reducing operating costs. Why are more and more companies starting to phase out their old Y-series orYE2 Motor, turning to fully embrace the YE3 standard? Behind this lies a huge economic account and technological innovation.

What is a YE3 motor?

YE3 motorIt refers to the ultra-high efficiency that reaches the energy efficiency class 2 (corresponding to the IE3 energy efficiency class in the international standard IEC 60034-30) in the GB/T 28575-2012 standard.three-phase asynchronous motor. Its core advantage over conventional ordinary motors is a significant increase in the efficiency of converting electrical energy into mechanical energy.

From a technical point of view, the YE3 series motors are designed with aCold Rolled Silicon Steel Sheetsas a magnetically conductive material and optimized the electromagnetic design scheme. This improvement leads directly to a significant reduction in the motor's iron, copper and mechanical losses. In short, for the same power output, theYE3 motorConsumes less power, runs smoother, and has a lower temperature rise, resulting in longer insulation life.

Core Advantage: Not only saving electricity, but also investment

Many companies tend to struggle with the relatively high initial acquisition cost of YE3 motors when purchasing. However, from a full life cycle cost (LCC) point of view, this is a very good deal.

1. Exceptional energy-saving performance: The average efficiency is about 2%-3% higher than YE2 series motors. Although the value may seem small, but for industrial equipment that runs 24 hours a day all year round, the amount of electricity savings accumulated over a year is amazing.
2. Policy dividend support: As a key energy-saving product promoted by the state, the use of YE3 motors can usually obtain the corresponding national or local financial subsidies through energy-saving projects, which further offsets the purchase price difference.
3. High reliability and low maintenance: Optimized structural design makes the motor vibrate less and make less noise.Class F InsulationThe structure ensures its endurance under severe working conditions and reduces hidden losses due to faulty downtime.

Case Study: Energy Saving Retrofit in a Ceramic Factory

To gain a more intuitive understandingYE3 motorWe can refer to the case of a large ceramic enterprise's retrofit for the economic benefits. The plant originally used an old Y-series motor to drive the ball mill, with a single power of 132kW and an annual running time of about 7,200 hours.

After performing energy efficiency diagnostics, the plant replaced the main drive of one of the ball mills with a same-powerYE3 Ultra High Efficiency Motor. After six months of operational monitoring data comparisons were found:

• Current drop: The average drop in operating current at constant load is about 8A.
• Energy-saving benefits: A single motor saves about 28,000 kWh of electricity per year. According to the industrial electricity 0.8 yuan / degree calculation, only a single motor can save 22,400 yuan per year in electricity costs.
• payback period: Taking into account the purchase cost and the salvage value of the old motors, the company recouped the investment cost of the replacement motors in less than a year.

Application Scenarios and Selection Suggestions

YE3 motorIt is extremely versatile and widely used in various industrial fields. Especially the following types of application scenarios, the replacement effect is most obvious:

• Fan and pump loads: This type of equipment is usually operated continuously for long periods of time and has the greatest potential for energy savings.
• Compressor Industry: The YE3 is standard in air compressor systems where energy efficiency is critical.
• Machine Tools & Gearboxes: Provides a more stable power output.

When selecting a model, in addition to focusing on the power, number of poles and mounting method, be sure to confirm that the energy efficiency label on the nameplate of the motor is in line with theGB 18613-2020(Note: Although YE3 corresponds to Grade 2 of the old national standard, it may correspond to Grade 3 under the new national standard, so you need to confirm the IE3 grade in conjunction with the latest standard when purchasing). In addition, for the demand of frequency conversion speed control, it is recommended to consult the manufacturer whether it is necessary to add insulated bearings or adopt the special series for frequency conversion to ensure the best match.