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Thread Subject:
Transformer

Subject: Transformer

From: Varun Goud Vaddeboina

Date: 29 Aug, 2010 19:07:03

Message: 1 of 3

Hi,
Can anyone please help me how to calculate the transformer core saturation characteristics. I need to input the saturation data (current, flux) values in the transformer parameters box.

Should the saturation be modelled on the HV side or LV side?
I'm having open circuit and short circuit test results with me performed on the LV side.
I'm unable to get the saturation characteristic points.

Please help me.

Thanks
Varun

Subject: Transformer

From: aasim Azooz

Date: 29 Aug, 2010 22:50:20

Message: 2 of 3

"Varun Goud Vaddeboina" <dc09vgv@brunel.ac.uk> wrote in message <i5eb4n$oij$1@fred.mathworks.com>...
> Hi,
> Can anyone please help me how to calculate the transformer core saturation characteristics. I need to input the saturation data (current, flux) values in the transformer parameters box.
>
> Should the saturation be modelled on the HV side or LV side?
> I'm having open circuit and short circuit test results with me performed on the LV side.
> I'm unable to get the saturation characteristic points.
>
> Please help me.
>
> Thanks
> Varun
you have to model the current flux curve. a tangent hyperbolic function (tanh) may be useful
Aasim Azooz

Subject: Transformer

From: Varun Goud Vaddeboina

Date: 30 Aug, 2010 05:34:03

Message: 3 of 3

"aasim Azooz" <aasimazooz1@yahoo.com> wrote in message <i5eo7c$c8f$1@fred.mathworks.com>...
> "Varun Goud Vaddeboina" <dc09vgv@brunel.ac.uk> wrote in message <i5eb4n$oij$1@fred.mathworks.com>...
> > Hi,
> > Can anyone please help me how to calculate the transformer core saturation characteristics. I need to input the saturation data (current, flux) values in the transformer parameters box.
> >
> > Should the saturation be modelled on the HV side or LV side?
> > I'm having open circuit and short circuit test results with me performed on the LV side.
> > I'm unable to get the saturation characteristic points.
> >
> > Please help me.
> >
> > Thanks
> > Varun
> you have to model the current flux curve. a tangent hyperbolic function (tanh) may be useful
> Aasim Azooz

Thanks for the reply Aasim. I have seen in some IEEE papers that arc tangent method is also used to model the saturation characteristics. But I couldn't get the exact procedure of how to apply this method to get saturation curves. Even I don't know how to apply tahgent huperbolic function for the same. Please recommend me any procedure or derivation to model the saturation curve.

Thanks Aasim

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