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 election act used for elections to all of Ontario's municipal councils was amended in 2016, and since then municipalities have had the option to institute a ranked ballot. Ontario's municipalities have a variety of electoral configurations: some with all single-member districts, some with all multi-member districts, some electing members at-large, and some using a mixture of these approaches; the relevant regulations outline the use of instant-runoff voting where a single representative is to be elected and STV where multiple representatives are to be elected. As of the 2018 Ontario municipal elections, only one council, that of the City of London,