Authors made experiments for loudness and nature of noise at 15 substations of typical construction of Japanese State railways so that data obtained therefrom might serve as guide to solution of noise problems; loudness of noise at substations equipped with rotary converters differed from that at substations with mercury rectifiers, i.e., former was about 70 db and latter about 50 db. (In Japanese.)
Noise of D.C. substations for electric railways
Japanese Gov Rys -- Bul
Japanese Government Railways -- Bulletin ; 23 , n 12
1935
81 pages
Aufsatz (Zeitschrift)
Japanisch
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