Origin of single-phase
Examples from the Web for single-phase
Simple repulsion motors and single-phase induction motors that start as repulsion motors are reversed by shifting the brushes.
If single-phase or two-phase current is transmitted, each cable should contain the two conductors that go to make up a circuit.Electric Transmission of Water Power|Alton D. Adams
A Martin rotary converter to be operated from a single-phase line is shown in Figure 147.