« previous next »
Pages: [1]   Go Down

Author Topic: What does this mean.  (Read 1503 times)

0 Members and 1 Guest are viewing this topic.

Offline thedoc298Topic starter

  • Contributor
  • Posts: 36
  • Country: us
What does this mean.
« on: October 04, 2019, 11:29:01 pm »
This is on the tag of a distribution transformer. Does anyone know what the number 12470Y mean. Thanks
Logged
 

Offline helius

  • Super Contributor
  • ***
  • Posts: 3681
  • Country: us
Re: What does this mean.
« Reply #1 on: October 04, 2019, 11:43:32 pm »
12470 is the voltage across phases, and Y means it is a wye-connected primary. The primary voltage betwen each phase and the neutral (star) point is 7200. See http://en.wikipedia.org/wiki/Three-phase and http://en.wikipedia.org/wiki/Delta-wye_transformer for more details.
Logged
 

Offline ataradov

  • Super Contributor
  • ***
  • Posts: 11783
  • Country: us
    • Personal site
Re: What does this mean.
« Reply #2 on: October 04, 2019, 11:44:01 pm »
12470V is phase to phase voltage. 7200V is the phase to neutral voltage.
Logged
Alex
 

Offline thedoc298Topic starter

  • Contributor
  • Posts: 36
  • Country: us
Re: What does this mean.
« Reply #3 on: October 04, 2019, 11:46:38 pm »
Thank you both, knew it was 7200 but did not know the other stuff. Still learning.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee