General requirements for rotating electrical machines, Specification for built-in thermal protection for electric motors rated at 660 volts a.c. and below— 16 стр.
Specification for general requirements for rotating electrical machines, Built-in thermal protection for electric motors rated at 660 volts a.c. and below
Specification for general requirements for rotating electrical machines, Built-in thermal protection for electric motors rated at 660 volts a.c. and below
