On Mon, May 2, 2016 at 9:05 PM, andy pugh <bodge...@gmail.com> wrote: > I don't think I have a collapsing field. Downstream of the relay is a > rectifier and a big capacitor.
I would like to see a good reference on this. I have some homebuilt equipment with SSR's switching power supplies and never had any problem. With a rectifier and capacitor, inrush might be a problem (Jon beat me to it). Seems like if you carefully analyze the conditions they were experiencing, it may reveal the failure mode. The governing equation for the capacitor i = c dv/dt suggests that you can get big currents if the voltage drops precipitously. It's possible that current went through the SSRs. ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
