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Optical methods for measurement of voltage and current on power systems |
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| Authors: | A J Rogers |
| Institution: | The author is with the Central Electricity Research Laboratories, Kelvin Avenue, Leatherhead, Surrey KT 22 7SE, UK |
| Abstract: | The basic principles of optical methods for measuring voltage and current at high voltage are presented. These include the magneto-optic effect, the electro-optic effect and the electrogyration effect, plus various detection and noise reduction techniques. Both free path and enclosed path devices which have been constructed on these principles are described. The viability of these devices for the electricity supply industry is assessed. |
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