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Multifilamentary Bismuth(2223) Multilayer-Wound Conductors for Power Transmission Lines

Published online by Cambridge University Press:  26 February 2011

H. Mukai ,
N. Shibuta ,
K. Sato ,
T. Hara ,
H. Ishii  and
T. Yamamoto
H. Mukai
Affiliation:
Osaka Research Laboratory, Sumitomo Electric Industries Ltd., 1–1–3, Shimaya, Konohana-ku, Osaka 554, Japan
N. Shibuta
Affiliation:
Osaka Research Laboratory, Sumitomo Electric Industries Ltd., 1–1–3, Shimaya, Konohana-ku, Osaka 554, Japan
K. Sato
Affiliation:
Osaka Research Laboratory, Sumitomo Electric Industries Ltd., 1–1–3, Shimaya, Konohana-ku, Osaka 554, Japan
T. Hara
Affiliation:
Engineering Research Center, Tokyo Electric Power Company, 2–4–1, Nishi-Tsutsujigaoka, Chofu-shi, Tokyo 182, Japan
H. Ishii
Affiliation:
Osaka Research Laboratory, Sumitomo Electric Industries Ltd., 1–1–3, Shimaya, Konohana-ku, Osaka 554, Japan
T. Yamamoto
Affiliation:
Engineering Research Center, Tokyo Electric Power Company, 2–4–1, Nishi-Tsutsujigaoka, Chofu-shi, Tokyo 182, Japan
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Abstract

The fundamental problems of applying high-Tc superconductors to power transmission lines were studied, and prototypes of multilayer-wound conductors were fabricated and evaluated.

Multifilamentary silver sheathed wires have good anti-strain. properties. A 61-filament bismuth(2223) wire proved to maintain 90% of initial transport current property after 150 cycles of bending (bent-straightened-bent reversely-straightened) with 0.18% strain. A 61-filament wire of 114m unit-length was produced and proved to have a Jc of 9,700 A/cm2 with an Ic of 9.34A for the whole length at 77.3K.

Using these multifilamentary wires, prototypes of multilayer-wound conductors were produced by the react-and-wind technique. A 1.4m long three layer-wound conductor could carry 590A (Jc=7.020A/cm2) in liquid nitrogen.

These results indicate that the basic problems of high-Tc superconductor application to power transmission lines will be overcome using this technology.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 633
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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