Title :
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
fDate :
4/1/2001 12:00:00 AM
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;
Journal_Title :
Power Delivery, IEEE Transactions on
