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      1. C.P: Mr. Wu
        F T: 0512-66956915
        FDM: 0512-66930668-9602
        FAX: 0512-66930698-9602
        EMAIL: wuxiaomin@szyongjie-motor.com

        EU energy efficiency standards for motors

        Author: Comefrom: Date:2017-4-15 11:17:48 Hits:77

        EU motor energy efficiency standards:

        Since the 20th century, 70 years, some European motor manufacturers such as Germany Siemens, France CEM and other companies have developed and produced a number of high-efficiency motor, but has not been much development, the establishment of the EU in 1993, the situation has been obvious Change. (EU-CEMEP protocol) was established in 1999. Euro DEEM was developed in the field of motor applications, and the OMD-CEMEP protocol was developed by the European Union (EU) on the energy efficiency, policy and market function of the motor. [6,7,8]. The EU-CEMEP agreement between the European Union and the European Association of Electrical and Electronic Manufacturers (CEMEP) classifies and identifies the efficiency level of the motor. The agreement for each specification of the motor provides a high and low efficiency indicators, the product efficiency value is lower than the low index called eff3 motor, between the low index and high indicators called eff2 motor, higher than the high index Eff1 motor, Figure 3 for the agreement 4 pole motor efficiency curve, it can be seen from the figure, the low resistance curve is equivalent to the actual production of the current EU electrical efficiency of the average value, while the high-end curve is the actual motor efficiency distribution limit. Eff1 motor loss than the eff3 loss of 40%, for the motor running time for more than 6000 hours of the occasion design. Eff2 motor losses are reduced by 20% over eff3 losses and are designed for applications where the operating time is more than 2000 hours per year. Eff1 more eff2 efficiency by different power were increased by 1 to 5 percentage points. The efficiency indicators for the EU-CEMEP protocol are listed in Table 3. CEMEP estimates that the replacement of the existing eff3 motor with the Eff2 motor in the EU can save 6 billion kWh per year, such as electricity costs of € 0.05 / kWh, saving € 300 million in electricity costs each year. Generally, the Eff3 motor is called a low efficiency motor. The eff2 motor is called an improved efficiency motor. The Eff1 motor is called a high efficiency motor. The agreement also specifies that the manufacturer should list the efficiency grade identification on the product nameplate and on the sample data sheet, as well as the efficiency values for user selection and identification. The EU-CEMEP protocol also specifies that the manufacturer, in addition to the efficiency values listed at the rated load, should also list the efficiency values for the 3/4 load. EU-CEMEP protocol covers all closed fan-cooled (IP54 and IP55) three-phase AC cage asynchronous motor, power range from 1.1 ~ 90kw, the number of poles for the 2 pole and 4 pole, the voltage is 400V, 50Hz, S1 Working system (ie continuous quota), the standard design (ie its starting performance in line with IEC 60034-12 N design technical requirements).

         The EU-CEMEP protocol is executed by the CEMEP member units and is signed by non-member manufacturers, importers and retailers. At present, there are 36 manufacturing companies including Siemens, Switzerland, ABB, Brook Cromton, France, Leroy-Somer, France, covering 80% of Europe's production. Since the signing and implementation of the agreement in 1999, the contracted motor manufacturers have been able to Requirements, try to reduce the eff3 low efficiency motor production, increase the effl and eff2 efficiency of the motor market share. The major European motor manufacturers have also invested considerable effort in the development and production of effl-rated high-efficiency motor series. For example: Germany SIEMENS company developed aLA9 series and 1LG6 series of products. 1LG6 series for the cast iron chassis motor, the power range of 11 ~ 200kW, the number of poles has 2 pole, 4 pole, 4 pole, and 4 pole, 6 pole and 8 pole. Protection type are IP55, efficiency are up effl indicators. The WP Premium efficiency motors series developed by Brook Crompton, UK, has a power range of 0.75 to 400 kW and has 2 poles, 4 poles, 6 poles and 8 poles. The efficiency is in accordance with the eff1 and meets the minimum efficiency targets set by the UK government. Switzerland ABB company developed M2 / M3 series motor, power range 0.25 ~ 710kW power in 11kW and above the motor efficiency are in line with eff1 indicators.

        ICP: 蘇ICP備14038574號-1 Technical support:RBWL

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