Title :
Pockels high-voltage measurement system
Author :
Santos, J.C. ; Taplamacioglu, M.C. ; Hidaka, K.
Author_Institution :
Dept. of Electr. Energy & Autom. Eng., Sao Paulo Univ., Brazil
Abstract :
The practical use of optical sensors to measure directly high-voltages can be limited by their high sensitivity. A new optical high voltage measurement technique for applying to high voltage levels up to 400 kV in a wide bandwidth between de to 30 MHz is developed. A prototype of the optical voltage transformer is assembled using Pockels crystals in multi-segmented arrangement, a super luminescent diode (SLD) light source and a special optical fiber link. A good performance of linearity and accuracy is obtained for DC, AC, lightning impulse and step voltage measurements. In addition, an excellent agreement is observed between the measured and predicted values
Keywords :
high-voltage techniques; 30 MHz; 400 kV; AC voltage measurements; DC voltage measurements; Pockels high-voltage measurement system; lightning impulse voltage measurements; optical fiber link; optical high voltage measurement technique; optical sensors; optical voltage transformer; step voltage measurements; super luminescent diode light source;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990506
