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Optical current transformer for high-voltage DC transmission systems
高压直流输电系统光学电流Transformer model
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作者:Takeru, M.; Yukihisa, H.; Kinichi, S. 期刊:Toshiba Leading Innovation 时间:2009 摘要:An optical current transformer (CT) is a small, lightweight, and high-dielectric-strength optical current sensor applying an optical fiber for sensing that can measure not only alternating current (AC) but also direct current (DC). In the field of high-voltage DC (HVDC) systems, many DC current transformers (DCCTs) are utilized for measuring DC current in high-voltage circuits up to DC 250 kV. Toshiba has developed an optical DCCT for submarine cable protection in HVDC systems and evaluated this sensor through field verification tests at the Furukawa Cable Head Station in the Hokkaido-Honshu HVDC Link. As a result, we have confirmed the effectiveness of the optical DCCT and are aiming to commercialize the product in FY2009. |
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