A high-accuracy optical current transducer for electric power systems

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/61.53099· OSTI ID:7081213

Ulmer, E A ^[1]

---

1. Square D-Electromagnetic Industries, Clearwater, FL (US)

This paper reports on an optical current transducer employing a new, simple, technique to measure electric current. The technique is based on a fundamental analysis of the Faraday effect. An optical current transducer (OCT) has been designed which overcomes the disturbing effects of temperature on the glass sensing element. By aligning the transmission axis of the polarizer at a specific angles, the OCT's output is shown to be independent of temperature. High accuracy measurements are thereby possible over a wide range of temperatures. Two practical OCT designs for extra-high voltage power systems are compared.

• OSTI ID: 7081213
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA) Vol. 5:2; ISSN 0885-8977; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
240200 -- Power System Networks
Transmission & Distribution-- (1990-)
240500 -- Power Transmission & Distribution-- Environmental Aspects-- (1990-)
AC SYSTEMS
ACCURACY
BIREFRINGENCE
DC SYSTEMS
DESIGN
EHV AC SYSTEMS
EHV DC SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
FARADAY INDUCTION
INDUCTION
MEASURING INSTRUMENTS
OPTICAL EQUIPMENT
POWER SYSTEMS
REFRACTION
TRANSDUCERS