Air core pulse transformer design
Cylindrical air core pulse transformers capable of passing high voltage/energy pulse waveforms with high efficiency and low distortion require a much more delicate design balance of physical dimensions and electrical parameters that iron or ferrite core units. The two salient advantages of the air core transformer are a much lighter weight and a simplified high voltage insulation system. Special computer codes were written to evaluate the performance. The analysis includes calculation of the self and mutual inductances as determined by the dimensions and insulation stress, evaluation of the waveforms distortion and energy transfer efficiency. Graphical data are given for the optimization in terms of electrical parameters. The results are in agreement with experimental data. It is concluded that air core transformers are feasible operating at hundreds of kilovolts and lens of kioljoules in the microsecond region with energy transfer efficiencies of 70% to 85%. The insulation stresses required are in the 100 to 300 kV/em range. Effects of the high frequency current distribution in the windings and the use of ''slug'' type ferrite cores are also evaluated.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6908166
- Report Number(s):
- SAND-88-0588C; CONF-880699-6; ON: DE88012670
- Resource Relation:
- Conference: 18. power modulator symposium, Hilton Head, SC, USA, 20 Jun 1988; Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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