Timeline for Can roles of primary and secondary windings be reversed?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 21, 2017 at 1:36 | vote | accept | robert bristow-johnson | ||
| Apr 19, 2017 at 1:55 | answer | added | Brian | timeline score: 3 | |
| Apr 18, 2017 at 14:02 | comment | added | Chris H | I've done something similar to @AndrewGuy to test small power supplies on ~120V (we use 230V here) as well as for isolation. | |
| Apr 18, 2017 at 2:14 | comment | added | Andrew Guy | I've done exactly that when building a vacuum tube preamp - one transformer to bring 240VAC down to 12VAC (to power the tube heaters), and then another transformer to bring 12VAC back up to 240VAC (then rectified and filtered) to provide the high voltage for tube plates with isolation from the mains. As has been mentioned by some of the answers, I didn't quite get 240VAC after the conversion back up, due to transformer losses. | |
| Apr 17, 2017 at 17:36 | history | edited | robert bristow-johnson | CC BY-SA 3.0 | edited body |
| Apr 17, 2017 at 11:01 | history | tweeted | twitter.com/StackElectronix/status/853926502144106497 | ||
| Apr 17, 2017 at 9:35 | vote | accept | robert bristow-johnson | ||
| Apr 21, 2017 at 1:36 | |||||
| Apr 17, 2017 at 9:30 | comment | added | user16324 | Knowing that the transformer will be used reversibly, as in a UPS, will affect its design slightly, so it won't need to be de-rated. | |
| Apr 17, 2017 at 9:02 | comment | added | PlasmaHH | The transformers of a lot of UPSs do exactly that | |
| Apr 17, 2017 at 8:27 | answer | added | user16324 | timeline score: 26 | |
| Apr 17, 2017 at 8:18 | answer | added | Neil_UK | timeline score: 27 | |
| Apr 17, 2017 at 8:06 | history | asked | robert bristow-johnson | CC BY-SA 3.0 |