Livro
ANSI C57.12.52-1981: American National Standard Requirements for Sealed Dry-Type Power Transformers, 501 kVA and Larger, Three-Phase, with High-Voltage 601 to 34 500 Volts, Low-Voltage 208Y/120 to 4160 Volts
IEEE Xplore; Linguagem: Português
Referência(s)