In an AC generator we have alternating current output then how we designate a line as phase (line) and the other as neutral??
2006-10-09 06:14:39 · 3 answers · asked by rajesh_tihri 1 in Education & Reference ➔ Other - Education
To simplify, assume a single phase generator with two windings or a three phase generator with three windings.
For single phase 120V/240V the windings can be considered to be wired in series with the center connection designated as neutral or zero volts reference. It will measure 120V to either live output, but there will be 240V between the two live lines. This neutral may be bonded to the generator chassis or left floating, depending upon the intended use.
Similarly with a three phase 120V/208V system, the three windings are placed at 120 degrees from each other. One line from each is tied to a common neutral such that the output voltage phase keeps its 120 degree difference. It will measure 120V from neutral to either phase, or 208V between phases. The neutral line may be bonded to ground or floating, depending upon intended use.
Small generators which operate at 120V only essentially choose one side of the coil and designate it as ground. Inverter type generators I need to research further.
Most large generators use six coils and can be wired as either single phase 120/240 or three phase 120/208.
2006-10-09 09:02:27 · answer #1 · answered by Warren914 6 · 0⤊ 0⤋
It is achieved through the windings in the stator of the generator end. This connection is usually marked with either a 0 or an L0. Bonding your neutral to ground is the only way to go, especially if you are using this in a single phase 120/240 and you are going to be using 120 volt loads. If neutral is left floating and is not bonded either at the generator or at the transfer switch or at your final connection you can get dangerous spikes in voltage, causing injury and or serious damage to whatever you are powering. If this does not answer your questions give some more detail on what you have and I can try to help some more.
2006-10-11 19:19:27 · answer #2 · answered by Baby #1 born August 2009 6 · 0⤊ 0⤋
There is a neutral point common to all three phases in the windings, and the neutral wire is connected here.
2006-10-09 13:23:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋