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
History and use of the single transferable vote boards. The Object Management Group (OMG) uses STV for their Architecture Board (AB) elections. The selection of nominees for Academy Awards is via an STV ballot of the members of the Academy of Motion Picture Arts and Sciences. Differences from STV are that voters may only rank as many choices as nominees (five for most categories, with ten for best picture), and that at least one first preference is required for a candidate to be successful. Selection of a winner from among the nominees is done using plurality voting. History and use of the single transferable vote Historically, the single