Question

17. When an industrial electrical circuit requires a 220 VAC single phase power supply, the electric power supply circuit is normally taken from
O A. a separate transformer feed.
O B. a single phase of a three-phase system and a ground wire.
O C. two of the three power feeds in a three-phase system.
O D. phase A of a delta connected to the neutral tap on windings B and C.

Answer 1

Answer: B

Explanation: