Resistively shielded optical voltage transducer

Author

Rahmatian, Farnoosh ; Chavez, Patrick P. ; Jaeger, Nicolas A F

Author_Institution

NxtPhase Corp., Vancouver, BC, Canada

Volume

1

fYear

2001

fDate

2001

Firstpage

117

Abstract

A high-voltage (HV) optical voltage transducer (OVT) using resistively shielded electric field sensors is presented for use in HV transmission systems. The OVT is built in a hollow-core polymer insulator filled with low-pressure dry nitrogen gas. A 138 kV prototype has been tested for accuracy under various severe dynamic field disturbances including salt-clay pollution (clean fog test) and melting ice on the insulator. The test results show that the OVT meets ANSI/IEEE 0.3 % accuracy classes under these extreme field disturbances. The prototype has also been tested and successfully passed various HV dielectric tests including lightning impulse tests (BIL) at ±650 kV, chopped impulse tests at -750 kV, power frequency withstand at 275 kV, and partial discharge <5 pC

Keywords

high-voltage techniques; ice; impulse testing; optical sensors; polymer insulators; power system measurement; shielding; testing; transducers; voltage measurement; -750 kV; 13.8 kV; 20 mm; 275 kV; 650 kV; ANSI/IEEE 0.3 % accuracy classes; Gaussian quadrature; HV dielectric tests; HV transmission systems; chopped impulse tests; clean fog test; dynamic field disturbances; electric field effects; electric field measurement; extreme field disturbances; high-voltage optical voltage transducer; high-voltage techniques; hollow-core polymer insulator; lightning impulse tests; low-pressure dry nitrogen gas; melting ice; partial discharge; power frequency withstand; resistively shielded electric field sensors; salt-clay pollution; Gas insulation; Impulse testing; Insulator testing; Optical polymers; Optical sensors; Plastic insulation; Prototypes; Sensor systems; Transducers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2001 IEEE/PES

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7285-9

Type

conf

DOI

10.1109/TDC.2001.971219

Filename

971219