On 13/05/2014 11:33, Brian Morrison wrote:
On Tue, 13 May 2014 10:39:24 +0100
Kafkaesque wrote:

It's the DC resistance that limits the primary current once the core
is saturated, not the inductance.

When the core is saturated the effective inductance is zero. Think
about the B-H loop diagram for a transformer.

Which is why it's the resistance which limits the current for the parts
of each half-cycle during which the core is saturated.

On the other hand, the resistance will rise (or even O/C) because the
temperature will rise ... possibly quite rapidly :-)