Line constant measurements and loading current test in long-distance 275 kV GIL

Author

Miyazaki, Akinobu ; Takinami, Naoki ; Kobayashi, Shinichi ; Yamauchi, Takao ; Hama, Hiroyuki ; Araki, Tomoo ; Nishima, Hideaki ; Hata, Hiroyuki ; Yamaguchi, Hiroaki

Author_Institution

Chubu Electric Power Co. Inc., Nagoya, Japan

Volume

16

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

165

Lastpage

170

Abstract

This paper reports on the results of a loading current test and measurements of the line constants of a long-distance gas-insulated transmission line (GIL) in a tunnel. The loading current test was carried out at 80% rated current, to verify the soundness of the thermal expansion and contraction of the GIL. As a result, the performance of the GIL was confirmed to be appropriate in terms of the thermal expansion and contraction. With respect to the line constants and transient enclosure voltage, each of the measured values was found to be at an appropriate level presenting no problem for the service operation of this line

Keywords

capacitance measurement; electric impedance measurement; electric resistance measurement; gaseous insulation; inductance measurement; power system measurement; power transmission lines; testing; 275 kV; DC resistance measurement; capacitance measurement; inductance measurement; line constant measurements; loading current test; long-distance GIL; long-distance gas-insulated transmission line; pulse propagation speed measurement; service operation; surge impedance measurement; switching condition; thermal contraction; thermal expansion; transient enclosure voltage; tunnel; Contact resistance; Current measurement; Electrical resistance measurement; Gas insulated transmission lines; Immune system; Partial discharge measurement; Testing; Thermal expansion; Transmission line measurements; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.915477

Filename

915477