Single-phase alternating current
The rotary current supply network consists of the three conductive phases, plus the neutral conductor and the protective conductor. See Figure A.
Single-phase alternating current means that the consumer can be supplied with 230 V from one of the phases R, S, or T and the neutral conductor M. In a rotary current network with 32400 volt, the single-phase AC network has 230 volt. See Figure B.
(See also Rotary current mains)