breakdown torque

breakdown torque

[′brāk‚dau̇n ‚tȯrk]
(electricity)
The maximum torque that a motor can develop at its rated applied voltage and frequency without an abrupt drop in speed.
References in periodicals archive ?
A specially designed motor with a Breakdown Torque (BDT) in excess of 430% FLT was then implemented to deliver the full 350% FLT through a larger capacity fluid coupling.
In the catalogs the following rated parameters of asynchronous motors are provided in most cases: the power [P.sub.n], the rotation speed of the rotor [n.sub.n], the phase current of the stator [I.sub.1n], the efficiency factor [[eta].sub.n], the power factor cos [[phi].sub.n], the relative breakdown torque [[mu].sub.c], the relative starting torque [[mu].sub.p], etc.
The i-th relative breakdown torque and the starting torque are calculated:
Locked-rotor current, locked-rotor torque, and breakdown torque tests were conducted at 60 hertz and near rated voltage.
NORD says based on decades of industry experience, it implements application-specific motor winding patterns to ensure tough torque characteristics with high breakdown torques. The durable roller table motors handle demanding load situations such as high-frequency reversing operation.