Title :
Design and evaluation of a current differential protection scheme incorporating a fiber optical current sensor
Author :
Li, H.Y. ; Crossly, P.A.
Author_Institution :
Centre for Electr. Energy, Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
The paper describes the design and operating performance of a current differential protection scheme that include a fibre optical current transducer (FCOT). Computer simulation techniques were used as the tool for carrying out the scheme modelling design analysis and performance evaluation. Fault current waveform encountered on a 33 kV distribution system and measured using the FCOT are used to evaluate the operating performance of protection scheme. The results are analysed and compared with those obtained for the protection tested using data derived from conventional CTs. Conclusions are drawn based on the advantages and disadvantages between FCOTs and CTs when used within a current differential protection scheme
Keywords :
Faraday effect; electric current measurement; fault currents; fibre optic sensors; power distribution faults; power distribution protection; 33 kV; computer simulation techniques; current differential protection scheme; distribution system; fault current waveform; fiber optical current sensor; fibre optical current transducer; mirror Faraday rotator; modelling design analysis; performance evaluation; Current measurement; Optical design; Optical fiber polarization; Optical fiber sensors; Optical fibers; Optical saturation; Optical sensors; Power system protection; Protective relaying; Transducers;
Conference_Titel :
Power Engineering Society Summer Meeting, 2000. IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-6420-1
DOI :
10.1109/PESS.2000.868729
