Constant use
May 1st 2005 Baldor has launched two new families of three-phase brake motors based on its Super-E efficiency motor technology.
Intended primarily for applications involving lengthy duty cycles or continuous operation, where the need for energy conservation is most acute, the new Super-E brake motors feature an electromechanical spring-set brake that provides fast stop and positive hold capabilities.
Standard Super-E brake motors, known as 'EBM' models, offer a choice of 12 models spanning power outputs from 1 to 30 HP (0.75 to 22 kW) to maximise application flexibility. The complementary 'CEWDBM' family of washdown motors comprises 8 models, with power ratings from 0.5 to 5 HP (0.37 to 3.7 kW).
All Baldor Super-E brake motors meet or exceed NEMA Premium and exceed equivalent IEC EFF 1 energy efficiency ratings. The 30 HP (22 kW) EBM model, for example, has a high full load efficiency of 94.1%, and still provides a figure of 93.8% at half load. The motors employ a number of special design features to achieve this level of performance, including high copper mass windings, premium-grade steel laminations, precision rotor-tostator air gaps, and high efficiency fans.
Both the EBM and CEWDBM families of Super-E brake motors are 'inverter ready', in that they meet the corona inception voltage requirements of NEMA Standard MG 1, Part 31.4.4.2, and can withstand peak voltages up to 1.6 kV. The motor windings use ISR (inverter spike resistant) magnet wire, extra winding insulation and tightly bound end turns, which makes them up to 100 times more resistant to the type of transient voltage spikes and fast rise time pulses frequently produced by inverters, thus maximising reliability. The motors can also be used with adjustable speed drives, producing a constant torque output over a 20:1 speed range. More articles from Baldor UK Limited: | 
