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

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...

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Bibliographic Details
Published in:	IEEE Transactions on power delivery 16, 2 (2001).
Main Author:	Miyazaki, A.
Format:	Article
Language:	English
Subjects:	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.