Lsbx - Inductance With External Bias (Series Circuit) - Voltech AT5600 User Manual

C H A P T E R 1 4 - A T
14.6.37.
Circuit)
DC Bias
0.1A
to 1000A
This test requires the use of one or more Voltech DC1000 Precision DC Bias
Current Sources. Contact your Voltech sales office for details.
The inductance of a transformer winding while an external bias current is flowing
through it may be tested using series or parallel equivalent circuit models. Initially
the DC bias current is set up and allowed to stabilize. An AC voltage is applied
across the selected winding; the voltage across and current through the winding is
then measured using harmonic analysis. The measured voltage is divided by the
current to obtain a complex impedance and the inductance is calculated.
On selecting 'LSBX Inductance with External Bias (Series Circuit)' from the
'Available Tests' window, a dialogue box will be displayed.
AT5600 User Manual 98-119 issue 14
E D I T O R
LSBX – Inductance with External Bias (Series
Measure
Range
1nH 1MH 1mV to 5V
Test Test
Voltage Frequency
20Hz to 3MHz
Basic Accuracy
0.2% @ Q>10
Page 365