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Old 18th Oct 2020, 1:07 am   #8
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 1,602
Default Re: Transformer voltages?

Yes about 60 volts IN THEORY. In practice the transformer would draw a grossly excessive current due to magnetic saturation, and would either be destroyed, or might be saved by prompt operation of the fuse or circuit breaker protecting the primary winding.

If this is an accident that has actually occurred, rather than a theoretical discussion, then relay windings would PROBABLY have survived the very brief over voltage.
If the transformer looks undamaged and still works, it was probably saved by prompt operation of the fuse or circuit breaker.

If future failure of the transformer or the relay coils/other loads powered by the transformer would put human life at risk, or be exceedingly costly then I would advise replacement.
For less critical applications that is probably extravagant.
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