A survey of optical channels for protective relaying practices and experience

The Optical Channels for Protective Relaying Working Group of the IEEE Power System Relaying Committee performed a survey of industry practices for applying optical channels, both planned and installed, for protective relaying communications. This report summarizes the sizes of the existing and planned optical fiber network, the types of construction, whether the relaying channels are on dedicated fiber or multiplexed with other services, experience, and maintenance practices. >