2 phase | on ElectriciansForums

Discuss 2 phase in the Australia area at ElectriciansForums.net

do you have 2/3 of a 3ph or 2 x incoming singles or a 1ph 3 wire (2x singles inverted off the same transformer)?? More info reqd.
 
In the UK, two phase is most often found on construction sites, the 110V yellow transformers.
There will be 55V on each conductor, so although the wiring colours sugest that there is a Line and Neutral, in fact both conductors are phase conductors.
In the states, they often use a system where each phase is 110V, and for items of equipment that require 220V, they use two 110V phases.
The phases are generally 180° apart, as oposed to 3 phase where the phases are 120° apart.
 
Its the same as any three phase supply. You get 3 Phase conductors and a neutral. 400V between phases or 230V to earth. Where as in a "split Phase" system you get 2 phase conductors and neutral. 480V between phase conductors, or 240V to earth.

the centre tapping is taken to earth, which also acts as the neutral conductor.
 

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