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File Type :PDF
File Size :40.5MB
Pages :773


DESCRIPTION:
Electric Machinery Fundamentals
has been rapid advance in the development of larger and more
sophisticated solid-state motor drive packages. The first edition of this book stated
that de motors were the method of choice for demanding variable-speed applications.
11131 statement is no longer true today. Now, the system of choice for speed
control applications is most often an ac induction motor with a solid-state motor
drive. DC motors have been largely relegated to special-purpose applications
where a de power source is readi ly avai lable, such as in automotive electrical
systems.