Will the inductance change??????

[ZengLei]

I have a question:

When the transformer goes into the status of magnetic saturation,will the inductance of primary and secondary change??????

My opinion is:

Under the condition of magnetic saturation

L primary:reduce
L secondary:not change

Am i right??

Could any one give me some matrials about the magnetic saturation,thanks!!!!!

 

[A.Anand Srinivasan]

i dont think the inductance would change much... magnetic saturation is something related to the core.... it is the point of time at which the magnetic material holds the maximum magnetic field it can absorb...

 

[mateuko]

The question is 'which one inductance?' Statical, dynamical? Average statical inductance will not change much, but the dynamical inductance at the moment of highest saturation will drop much or very much (depends on "starting µ" which means µ measured at nearly zero magnetic flux in the core). Heavily saturated core have dynamic µ 1..3. So when the starting µ of a core is 5 inductance drops about 2..3 times. When the starting µ is about 1000 (iron) inductance drops about 300..500 times.....

I hope your today's sleep won't be disturbed by above shocking facts.... ;-)

 

[Andrew8611]

No, I don't think that the inductances will change because the magnetic saturation is related to the maximun magnetic field that supports the core, not the inductances.
They got no changes at all, the only vary if the frequency changes.