I am running 3 phase AC into a set of transformers, Y config, and thence into bridge rectifiers . One leg of the output side of the transformers goes to the diodes. the other leg to the Y connection. That Y connection gets warm. (why?) Should it be connected to DC ground?
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** Have you linked the " + "and " - " of each bridge ?That is NOT how it is done.
Google it.
..... Phil
The y connection should not get warm, is the connection there good?
it takes 6 diodes for a threee phase rectifier which is not normally called a "bridge", that term is usally reserved for diamond-shaped arrangements that have input on two opposing corners and output on the other two.
-- Jasen.
The connection between this and that point is wrong.
Sorry I was not aware that the term "bridge" is reserved ... but I AM using 3 bridges. The two AC inputs on each device are joined thus doubling up / paralleling (?) each bridges' diodes. I could have done it with one and a half bridges (not doubling up on diode pairs) but why be stingy.
That should work perfwectly so long as the DC terminals all match up.
The only reason I can think of for heat at the Y point is if the terminals are dirty or loose.
-- Jasen.
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