Prior to the advent of the adjustable-speed drive (ASD), the polyphase induction motor operated as a constant-speed motor. Figure 1 shows the well-known torque and current curves versus speed for the ...

The National Electrical Manufacturers Association (NEMA) has reactivated and published ANSI/NEMA C50.41, "American National Standard Polyphase Induction Motors for Power Generating Stations." ...

ROSSLYN, Va. — The National Electrical Manufacturers Association (NEMA) announced it has revised NEMA MG 1-2016 Motors and Generators. NEMA MG 1 assists users in the proper selection and application ...

THE first edition of this work appeared in 1904. Since then remarkable advances have been made in electrical engineering. A foremost place in this progress must be given to electric motors, and more ...

MR. BEHREND, in the preface to his book, rather offers an apology for adding one more to the already overwhelming number of books dealing with electricity and its applications. In some cases an ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Signal processing specialist RF Engines Limited (Isle of Wight, UK) has added high-speed Polyphase DFT (discrete Fourier transform) cores to its range of DSP technologies. Dubbed the Ventrix range, ...