06/03/2017

Motors

	It is interesting knowing that about the 50% of the electric energy produced in Europe is used by industries and that the drives are responsible for 2/3 of this energy consumption. The International Standard IEC 60034-30/31:2008 classifies the energetic efficiency level as follows: IE1 - Standard efficiency (comparable to eff2) IE2 - High efficiency (comparable to eff1 or EPAct’92) IE3 - Premium efficiency (comparable to EPAct’05) IE4 - Super premium efficiency (under Project…) Therefore the following electric motors are concerned about: - Three-phase AC motors 2-4-6 poles, 50 or 60 Hz - Power between 0,75kW and 375kW - Supply up to 1.000V - Continuous duty S1 - Working conditions up to 1.000 mt. altitude a.s.l. and temperature range 15°÷40°C - From 16 June 2011 / 0,75 ÷ 375 kW / IE2            1 January 2015 / 7,5 ÷ 375 kW / IE3 o IE2+inverter            1 January 2017 / 0,75 ÷ 375 kW / IE3 o IE2+inverter While the following are excluded: - Motors for atmosphere potentially explosive (ATEX), as defined in the directive 94/9/CE - Brake motors - Double poles motors - Single-phase motors STM team proposes the new range of T and VL electric motors with efficiency IE3 obtained by: · Optimization of the winding design · High performances material · Reduction of the working temperature · Loss reduction · Friction reduction Discover more on   https://www.stmspa.com/eng/products/electronic/