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Conferences > CLEOPR > 2001 > TuG2 > TuG2_4
  • The 4th Pacific Rim Conference on Lasers and Electro-Optics
  • Technical Digest Series (Optica Publishing Group, 2001),
  • paper TuG2_4

Development of an Optical Current Transformer by Using a Bi-YIG Crystal for Electric Power System Protection and Stabilization Control

Hiromitsu Hayashi, Souhachi Iwasa, Kiyotaka Ueda, Hirohito Takeshita, Karachi Terazono, and Sadao Higuchi

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Abstract

A compact laser based current transformer (CT) is developed for electric power system protection. Bi-YIG crystal is selected as a useful material based on measurements. The prototype model a Bi-YIG laser CT was compared with a resistance shunt CT using a simulation device of transmission lines and similar behavior was observed, clearly representing its usefulness.

© 2001 IEEE

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