ceturtd., 2024. g. 8. aug., plkst. 03:45 — lietotājs andy pugh (<bodge...@gmail.com>) rakstīja: > > On Wed, 7 Aug 2024 at 18:50, Viesturs Lācis <viesturs.la...@gmail.com> wrote: > > > That makes a lot of sense. Since AC side is 3 phases, I assume I need > > 3 resistors. Can I use similar contactor as for switching this circuit > > on/off. > > I would think you would need 3 resistors yes. And at that point I > would be looking at a second 3-phase contactor rather than an SSR as > the device that is used to bypass the resistor. >
Well I actually found out that there are 3-phase SSR relay as well and it costs approximately the same as 3-phase contactor. Bonus for contactor is some additional NO and/or NC contacts. I found these resistors: https://www.tme.eu/lv/en/details/r100w-47r/power-resistors/sr-passives/ I was surprised that for 2 seconds it is allowed to overload them by 1600% Last missing piece in my puzzle is something to switch the discharge resistor. What are other folks using there? Simple 1 pole relay? Viesturs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
