Timeline for What are the differences between an AC and DC coil relay?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 12, 2022 at 18:02 | history | protected | CommunityBot | ||
| Feb 12, 2017 at 0:27 | answer | added | John P. | timeline score: 3 | |
| Sep 21, 2016 at 12:37 | history | tweeted | twitter.com/StackElectronix/status/778573935336099840 | ||
| Mar 25, 2016 at 8:07 | answer | added | user104699 | timeline score: 0 | |
| Dec 6, 2015 at 19:46 | answer | added | UK_techie | timeline score: 2 | |
| Aug 14, 2015 at 13:42 | vote | accept | Stephen Collings | ||
| Jun 26, 2015 at 14:52 | answer | added | Spehro 'speff' Pefhany | timeline score: 14 | |
| Jun 26, 2015 at 14:38 | answer | added | Andy aka | timeline score: 7 | |
| Jun 26, 2015 at 14:21 | comment | added | user16222 | sorry, I misread part of the question (ie it works at 60hz but not at 120). Yes part of the field collapses, there is usually another coil that produces a field out of phase of the main excitation field. This contributes to the retaining force and thus allows the relay to ride through zero crossings of the AC britannica.com/technology/shading-coil | |
| Jun 26, 2015 at 14:18 | comment | added | Stephen Collings | @JonRB Because the AC voltage passes through zero twice per 60 Hz cycle (assuming 60 Hz line frequency). No voltage, no current, no magnetic field. Or so I understand. If that's not accurate, I'd love to know about that! | |
| Jun 26, 2015 at 14:16 | comment | added | user16222 | why would the field collapse at 120Hz | |
| Jun 26, 2015 at 14:09 | history | asked | Stephen Collings | CC BY-SA 3.0 |