Development and field test evaluation of optical current and voltage transformers for gas insulated switchgear

Kobayashi, S.; Horide, Akihiko; Takagi, Isao; Higaki, M.; Takahashi, Genji; Mori, E.; Yamagiwa, T.

doi:10.1109/61.127085

Cited by 39 publications

(7 citation statements)

References 7 publications

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“…In the following section, we count the Pockels effect, and the construction of OVT, then show the results obtained in testing high voltage optical transducer [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

2013

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In this research paper briefly describes the design and construction of an optical voltage transducer measurement based on the effect electro -optical Pockels. The equipment is designed to operate in electric transmission lines 110 kV AC. It then describes the electrical tests performed on transformer to actual operating conditions.In the design and construction of the optical transformer used a photorefractive crystal Bi 4 Ge 3 O 20 (BGO), which was used because of its high sensitivity to changes in the electric field as a light source is used a laser diode with a wavelength of 670 nm. Presents the results of performance tests on potential levels appropriate to the optical laboratory.In the second part of this work was subjected to optical transformer operating voltage levels of 110 kV ac in this test the voltage was applied gradually until the operating voltage. Team performance was satisfactory.

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“…In the following section, we count the Pockels effect, and the construction of OVT, then show the results obtained in testing high voltage optical transducer [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

2013

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“…Their output signals are also compatible with modern signal processing systems. Further, due to the small size, they can be integrated into existing electric power devices such as SF 6 gas-insulated high-voltage switchgear (GIS). Therefore, the optical voltage sensors have been studied by many research institutes for decades of years.…”

Section: Introdutionmentioning

confidence: 99%

“…Commonly, optical voltage sensors exploit the electro-optic effect in bulk crystalline materials like bismuth germanium oxide, bismuth silicon oxide, or lithium niobate [1][2][3][4][5][6]. If a light beam radiates through the crystalline materials, its state of polarization will change in a manner dependent on the voltage V applied on the crystalline materials, which is known as the Pockels effect (linear electro-optical effect).…”

Section: Introdutionmentioning

confidence: 99%

Design of a Novel Optical Voltage Sensor for Ultra-High Voltage Application

Xu¹,

Tang²,

et al. 2009

2009 Asia-Pacific Power and Energy Engineering Conference

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A novel optical voltage sensor for ultra-high voltage measurement is proposed in this paper. The sensor is based on the converse piezoelectric effect of quartz. The piezoelectric deformation of the quartz crystal induced by an applied alternating voltage is sensed by an electrophotonic detector. To measure the small piezoelectric deformation, an optical-beam-deflection method is presented and the corresponding optical path parameters are analyzed. Also, a multi-loop optical arm embedded in two parallel plates is presented. The optical path is dependent only on the height of the parallel plates and the laser incident angle and is independent of the width of the parallel plates, which facilitates the structural design of the sensor. Furthermore, a precision photoelectric conversion circuit is designed to convert the optical signal to electric voltage. According to the designed signal processing circuit, the ultra-high voltage sensor (500KV) is able to achieve an accuracy class of 0.1.

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“…Commonly optical voltage sensors make use of the electrooptic effect (Pockels effect) in materials such as bismuth germanium oxide, Bi 4 Ge 3 O 12 (BGO), or bismuth silicon oxide, Bi 4 Si 3 O 12 (BSO) [1][2][3][4][5]. Several sensor configurations have been reported.…”

Section: Introductionmentioning

confidence: 99%

“…Several sensor configurations have been reported. In gas-insulated high voltage switchgear a small electrooptic crystal may be integrated into a capacitive voltage divider where it measures a small fraction of the line voltage [2][3][4]. In an optical voltage transducer for air-insulated substations reported in [5] the voltage is derived from several local electric field measurements at different positions along a path from ground to high voltage.…”

Section: Introductionmentioning

confidence: 99%

Growth and Characterization of Single Crystalline Bi₄Ge₃O₁₂Fibers for Electrooptic High Voltage Sensors

Wildermuth

Bohnert

Brändle³

et al. 2013

Journal of Sensors

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The micro-pulling-down technique for crystalline fiber growth is employed to grow fibers and thin rods of bismuth germanate, Bi4Ge3O12(BGO), for use in electrooptic high voltage sensors. The motivation is the growth of fibers that are considerably longer than the typical lengths (100–250 mm) that are achieved by more conventional growth techniques like the Czochralski technique. At a given voltage (several hundred kilovolts in high voltage substation applications) longer sensors result in lower electric field strengths and therefore more compact and simpler electric insulation. BGO samples with lengths up to 850 mm and thicknesses from 300 μm to 3 mm were grown. Particular challenges in the growth of BGO fibers are addressed. The relevant optical properties of the fibers are characterized, and the electrooptic response is investigated at voltages up to .

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Development and field test evaluation of optical current and voltage transformers for gas insulated switchgear

Cited by 39 publications

References 7 publications

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

Design of a Novel Optical Voltage Sensor for Ultra-High Voltage Application

Growth and Characterization of Single Crystalline Bi₄Ge₃O₁₂Fibers for Electrooptic High Voltage Sensors

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Development and field test evaluation of optical current and voltage transformers for gas insulated switchgear

Cited by 39 publications

References 7 publications

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

Design and testing under actual condition of performance of an optical voltage measurement transformer for transmission lines electrical of high voltage

Design of a Novel Optical Voltage Sensor for Ultra-High Voltage Application

Growth and Characterization of Single Crystalline Bi4Ge3O12Fibers for Electrooptic High Voltage Sensors

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Growth and Characterization of Single Crystalline Bi₄Ge₃O₁₂Fibers for Electrooptic High Voltage Sensors