Number | Name | Date | Kind |
---|---|---|---|
2428613 | Boyajian | Oct 1943 | |
3454879 | Smitra | Mar 1966 | |
3768011 | Swain | Oct 1973 | |
4276510 | Tompkins et al. | Jun 1981 | |
4286211 | Nakamura | Aug 1981 | |
4286214 | Milkovic | Aug 1981 | |
4298838 | Akamatsu et al. | Nov 1981 | |
4314200 | Marek | Feb 1982 |
Entry |
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Groenenboom, M. and Lisser, J., The Zero-Flux Current Transformer, A Wide Band Measuring Device for AC and DC, (IEE Conference on Developments in Power Systems Protection, London, 1980). |