Title :
Pockels high-voltage measurement system
Author :
Santos, Josemir Coelho ; Taplamacioglu, M. Cengiz ; Hidaka, Kunihiko
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ., Japan
fDate :
1/1/2000 12:00:00 AM
Abstract :
The practical use of optical sensors to measure direct 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 DC to 30 MHz is developed. A prototype of the optical voltage transformer is assembled using Pockels crystals in a multisegmented 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 :
Pockels effect; fibre optic sensors; high-voltage techniques; potential transformers; voltage measurement; 0 Hz to 30 MHz; 400 kV; Pockels crystals; Pockels high-voltage measurement system; direct high voltages measurement; optical fiber link; optical sensors; optical voltage transformer; super luminescent diode; Assembly; Bandwidth; Crystals; Light sources; Optical fibers; Optical sensors; Prototypes; Superluminescent diodes; Voltage measurement; Voltage transformers;
Journal_Title :
Power Delivery, IEEE Transactions on
