The EcoHeart family of high-efficiency permanent magnet motors and drives allows OEMs to create their own customized drive systems. Compared with conventional standard induction motors, this permanent magnet technology achieves 10 percent higher efficiency because the internal power loss is reduced by 50 percent, claims the manufacturer. With the sinusoidal motor current wave form developed, instead of trapezoidal wave form, which typical permanent magnet motors employ, the units achieve low torque ripple, low vibration and acoustic noise, and greatly reduced harmonics, the company says. The drives have no standard form factor and can be OEM unique. EcoHeart performance is optimized for water pump applications.
Hitachi America, 50 Prospect Ave., Tarrytown, NY 10591-4698; 914-631-0600; 914-631-3672; firstname.lastname@example.org; www.hitachi.us/inverters