Title :
Interfacing Optical CTs and VTs to Relays and Meters
Author :
Blake, J.N. ; Rose, A.H.
Author_Institution :
NxtPhase T&D Inc., Phoenix, AZ
Abstract :
We demonstrate three different types of secondary interfaces with optical current and voltage sensors: digital, low-energy analog, and high-energy analog. We compare the merits and limitations of each type of output. In all cases the digital output is superior to the analog due to inaccuracies in the converters and amplifier limits. In some cases the digital optical output has accuracies equivalent to a transfer standard
Keywords :
electric sensing devices; fibre optic sensors; power amplifiers; power convertors; power meters; relays; transducers; amplifier limits; analog sensors; converters; current transducers; digital optical output; optical current sensors; relays; secondary interfaces; voltage sensors; voltage transducers; Costs; Digital relays; Digital signal processing; IEC standards; Optical amplifiers; Optical sensors; Optical signal processing; Power measurement; Stimulated emission; Voltage;
Conference_Titel :
Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9194-2
DOI :
10.1109/TDC.2006.1668695
