Stock three-phase motors 1 hp and larger feature IRIS(TM) inverter-rated insulation system, which helps motors withstand voltage spikes that can result from the use of IGBT-type, pulse-width-modulated inverters. The IRIS multi-step process includes specially formulated phase insulation; cushioned and sleeved connections from the leads into the turns; and dipping the wound stator in deep-penetrating, high-temperature varnish.
LEESON Electric Corp., Box 241, Grafton, WI 53024.
Two new technologies from Stratasys, created in partnership with Boeing, Ford, and Siemens, will bring accurate, repeatable manufacturing of very large thermoplastic end products, and much bigger composite parts, onto the factory floor for industries including automotive and aerospace.
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