Editing Ground and neutral (section)

==Neutral conductors==
A '''neutral''' conductor, in combination with one or more '''phase line''' conductors, normally completes a circuit between the source and [[Electrical load|load]]. In a polyphase (usually [[three-phase]]) [[alternating current|AC system]] however, the neutral conductor may carry very little current if the phases are balanced and in some cases may thus not be provided.

Neutral wires are typically "bonded" to Earth (ground) at either the electrical service entrance, or at transformers within the system. An exception to this is found in the [[Earthing_system#IT_system|IT earthing arrangement]]. For electrical installations with [[split-phase electric power|split-phase]] (three-wire single-phase) service, the neutral point of the system is at the center-tap on the secondary side of the service transformer. For larger electrical installations, such as those with [[polyphase system|polyphase]] service, the neutral point is usually at the common connection on the secondary side of [[delta-wye transformer|delta/wye connected transformers]]. Other arrangements of polyphase transformers may result in no neutral point, and no neutral conductors.