大容量変坮器の分解輸送技術開発と製品化の変遷

摘要

The restrictions of transportation are one of the major parameters for transformer design and affect the available capacity, various characteristics and even reliability. With the progress of increasing power demand, transformer size and weight have been increasing. However, in Japan the restrictions for size and weight in rail and road are strict, and several kinds of technology for transformer construction and transportation method have been developed to meet these requirements.rnOne technology is the disassembled transportation method for transformer. Fortunately we have experienced three type disassembled transportation methods for Kamishiiba power station for approximately 50 years. This paper introduces a history on improvement of disassembled transportation technology and development of large power transformer.%明治26年（1893年）にわが国で初めて変圧器が製作さrnれ，明治36年（1903年）には国産第1号が製作された。既rnにわが国の変圧器の歴史は100年以上が経過しているが，rn飛躍的に大容量化が進んだのは，系統電圧が220～275kVrnの超高圧系統が運用された昭和26年（1951年）以降であrnり，その後500kV系統が昭和47年（1972年）に完成し，rn現在の電力網の整備と共に変圧器は歩んできた。