rongyuer_2001
Member
- Location
- Shanghai, China
Experts,
I'm a Chinese electric engineer, recently I work on a electric software which is only face to US, I'm not very clear with some US standard, so here I want to ask a very basic question,
If a transformer is a single phase one, its primary Voltage is defined as 12470Y/7200V, what does 7200V mean?
IMO, only 3-phase transformer has this kind of Voltage definition, e.g if a 3-phase transformer's voltage is 12470Y/7200V, that means its phase-to-phase voltage is 12470V, and phase-to-neutral voltage is 7200V.....
But, what does these 2 value mean when it is a single phase one.....?
Any explanation will be appreciated!!
I'm a Chinese electric engineer, recently I work on a electric software which is only face to US, I'm not very clear with some US standard, so here I want to ask a very basic question,
If a transformer is a single phase one, its primary Voltage is defined as 12470Y/7200V, what does 7200V mean?
IMO, only 3-phase transformer has this kind of Voltage definition, e.g if a 3-phase transformer's voltage is 12470Y/7200V, that means its phase-to-phase voltage is 12470V, and phase-to-neutral voltage is 7200V.....
But, what does these 2 value mean when it is a single phase one.....?
Any explanation will be appreciated!!