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
The Single Standard The Single Standard The Single Standard is a 1929 romantic drama film from Metro-Goldwyn-Mayer directed by veteran John S. Robertson and starring Greta Garbo, Nils Asther, and Johnny Mack Brown. This was Greta Garbo's fifteenth film and her second collaboration with fellow Swedish actor Nils Asther, after "Wild Orchids". Arden Stuart (Greta Garbo) believes that a single standard of conduct should apply to both sexes. She strives for a combination of freedom, equality, and honesty in love. Her first attempt is with chauffeur Anthony Kendall, who is secretly a disillusioned "ace aviator" and son of a lord. However their romance