...Also, by installing an autotransformer as a balancer at the end of the power line, imbalances can be significantly reduced both during normal operation and during faults. In areas where demand for electric lighting and power coexist, a three-phase, four-wire system with different capacities (Figure 2-b) is generally used. In such areas, a Y-connected three-phase, four-wire system (Figure 2-c) is optimal for supplying electricity, but this cannot generally be used because the ratio of the rated voltages of both loads must be 1:1. *Some of the terminology used in reference to "different capacity three-phase four-wire system" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また電線路の末端にバランサーとして単巻変圧器を設置すると,常時および故障時の不均衡を大幅に軽減できる。電灯需要と動力需要の混在する地域では異容量三相四線式(図2-b)が一般に行われる。このような地域にはY結線三相四線式(図2-c)による供給が最適であるが,両負荷の定格電圧の比が1:でなければならないので,一般には使用できない。… ※「異容量三相四線式」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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