Stall time, acceleration time, frequency of starting: the myths and the facts

Abstract

The definitions, methods of calculation, and thermal effects of stalling, accelerating, and repeated starting of medium and large fabricated squirrel-cage induction machines are discussed. The questions why there may be variations between like machines and why the motor designer and the user/specifier need to have a dialogue relative to an understanding of the application in terms of duty cycle, inertia, system voltage, and the load torque-speed characteristic are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>