Abstract
With development of electric power system, current transducer and voltage transducer based on electromagnetic induction principle can not meet the requirements of power automation and intelligence. To overcome the problems, current transducer and voltage transducer based on optoelectronic sensing technology have been studied deeply. Combined with research progress of optic current transducer and optic voltage transducer, we analyze basic principles of optoelectronic sensing technology in two kinds of transducer, compare characteristics of sensing measurement between electromagnetic transducer and optoelectronic transducer, investigate influences of optic current transducer and optic voltage transducer on power system relay protection, electric energy metering and measurement and control, and discuss key technologies related with optic current transducer and optic voltage transducer. Combined with application of optic current transducer and optic voltage transducer in electric power system, we explore problems to face, and prospect opportunities and future.
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