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The design of a compact pulse transformer

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8 Author(s)
Zhang, J. ; Dept. of Electr. Eng. & Phys., Texas Tech. Univ., Lubbock, TX, USA ; Dickens, J. ; Giesselmann, M. ; Kim, J.
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To improve the pulse shape and to obtain /spl mu/s order pulse duration on a diode load in an inductive energy storage system, an oil-submerged compact pulse transformer with diameter of 20 cm and length of 70 cm has been designed and tested. From theoretical calculations, the parameters with primary inductance L/sub p/=3.4 /spl mu/H, secondary inductance L/sub s/=90 /spl mu/H, and coupling coefficient K=0.772 are obtained. To prevent breakdown, a conical secondary design is adopted. Under the condition of 500 kV operation voltage, the maximum electric field in the transformer is 205 kV/cm (in oil). The axial voltage distribution on the secondary is linear. Experiments have been done to test the insulation, the mechanical force and the coupling coefficient. The test results are consistent with the design parameters.

Published in:

Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International  (Volume:2 )

Date of Conference:

27-30 June 1999