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.
They are designed for vertical or horizontal mounting, and have exceptional high starting and breakdown torque
, WEG claims.
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.