Neutral for 120 volt circuit

[tom baker]

Here are the definitions of neutral and neutral point
Neutral Conductor. The conductor connected to the neutral point of a system that is intended to carry current under normal conditions.
Neutral Point. The common point on a wye-connection in a polyphase system or midpoint on a single-phase, 3-wire system, or midpoint of a single-phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct-current system.
Does a 120 secondary of a transformer have a neutral or a grounded conductor?
The definition of grounded conductor has been deleted.
But Article 200 still uses the term grounded conductor.

Maybe I think too much.

 

[Jim W in Tampa]

Here are the definitions of neutral and neutral point
Neutral Conductor. The conductor connected to the neutral point of a system that is intended to carry current under normal conditions.
Neutral Point. The common point on a wye-connection in a polyphase system or midpoint on a single-phase, 3-wire system, or midpoint of a single-phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct-current system.
Does a 120 secondary of a transformer have a neutral or a grounded conductor?
The definition of grounded conductor has been deleted.
But Article 200 still uses the term grounded conductor.

Maybe I think too much.

Both ------space filler

 

[jcassity]

Does a 120 secondary of a transformer have a neutral or a grounded conductor?
.

If it did not, i know of one transformer that would be getting returned to the supplier:grin:

x2 per Jim

 

[quogueelectric]

Here are the definitions of neutral and neutral point
Neutral Conductor. The conductor connected to the neutral point of a system that is intended to carry current under normal conditions.
Neutral Point. The common point on a wye-connection in a polyphase system or midpoint on a single-phase, 3-wire system, or midpoint of a single-phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct-current system.
Does a 120 secondary of a transformer have a neutral or a grounded conductor?
The definition of grounded conductor has been deleted.
But Article 200 still uses the term grounded conductor.

Maybe I think too much.

If the definition has changed and a single winding xformer therefore might not fall under all of the restrictions of a neutral conductor??

 

[Smart $]

If it is a single winding secondary with one end grounded, I believe you can call it either when other grounded systems having a grounded neutral point are also on premises.

If neither end is grounded (which may or may not be compliant), you can't call any attached conductor a Neutral conductor or a grounded conductor.

 

[Twoskinsoneman]

Does a 120 secondary of a transformer have a neutral or a grounded conductor?

No neutral. If ungrounded then you just have two ungrounded conductors.

Does it pretty much spell out it has to been a 3 wire circuit to have a neutral?

 

[charlie]

. . . Does a 120 secondary of a transformer have a neutral or a grounded conductor? . .

From the 2008 Edition of the NEC, "Grounded Conductor. A system or circuit conductor that is intentionally grounded."

If a transformer has a single 120 volt winding, it does not have a neutral but it does have a grounded conductor. If a transformer has two 120 volt windings that may be connected in series and center point grounded, it does have a neutral and it does have a grounded conductor (same one). If you are running a 120 volt circuit from a 120/240 volt 1? panelboard, the circuit has a neutral and an ungrounded conductor.

A corner grounded delta does not have a neutral but it has a grounded conductor.

I have never indicated what the writer's of the NEC really mean since I do not want to interpret the Code. However, this is the intent in this case.