#### bunalmis

##### Full Member level 5

I measure the inductance and ohmic value of the secondary winding of a transformer at 40Hz and 400Hz with an LCR meter.

Why does the ohmic value measure differently?

Z=0.1948 Ohm Theta 85.85 Degree F=40Hz L=777.24uH R=0.0145 Ohm

Z=1.8551 Ohm Theta 83.87 Degrees F=400Hz L=734.21uH R=0.1980 Ohm

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Why does the ohmic value measure differently?

Z=0.1948 Ohm Theta 85.85 Degree F=40Hz L=777.24uH R=0.0145 Ohm

Z=1.8551 Ohm Theta 83.87 Degrees F=400Hz L=734.21uH R=0.1980 Ohm

[moderator action: removed link to external file server]

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