Errors of three-phase phase-meters in asymmetrical systems
Tài liệu tham khảo
V. O. Arutyunov, Electromechanical Ratiometer [in Russian], Gosénergoizdat (1956).
A. D. Nesterenko, élektrichestvo, No. 6 (1948).
G. V. Zeveke and P. A. Ionkin, Foundations of Electrical Technology, Part I [in Russian], Gosénergoizdat (1955).