Single-phase generator The early generators for those single-phase traction networks are single-phase generators. Even with newer three-phase motors which were introduced to some modern trains, the single-phases transmission for traction networks survive their time and are still in use in many railways today. However, many traction power stations have replaced their generators over time to use three-phase generators and convert into single-phase for transmission. In the early development of hydroelectricity, single-phase generators played an important role in demonstrating the benefits of alternating current. In 1891, a 3,000 volts and 133 Hz single-phase generator of 100 horsepower was installed at Ames Hydroelectric Generating
Single-use bioreactor public forums it is a major backer of single use technology in general, as the technology provides significant benefits and value, including mitigation of cross contamination and reduced industry costs. The FDA has stated it will not issue guidance to the industry on single use but "may" issue Q and As on its web site. When an FDA approved single use production site is approved, the gates will open for broader and faster single use adoption worldwide. Already single use has shown itself to be a huge cost saver and to increase process flexibility and operational efficiency for biosimilar applications