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Magtrol’s 4 quadrant motorized dynamometers provides expanded testing flexibility over a typical braking dynamometer. With the ability to bring the motor under test (MUT) to synchronous RPM before beginning a test, repeatability is improved. Since the motor windings are at ambient temperature before starting a ramp test, wattage is more consistent. Custom Software is required in order meet the specific needs of each individual customer’s application. Since Magtrol’s TM series torque transducers are used between the dynamometer motor and the MUT, we are able to measure the friction and windage of the MUT. Magtrol provides two systems with 4 quadrants. – The AC Induction for your larger motors that require higher speed and larger torque. – The Servo Motor system is for smaller and more precise tests that require slower speeds with finer accuracy. AC INDUCTION - Horizontal or Vertical orientation - Blower cooled - Full torque at zero speed – hold position / hold zero speed - True zero torque, (no load) - Closed-loop torque control - Steel Table - Coupling guard - Stall-torque capability - Adjustable motor mounting platform for optimum flexibility - AC vector drive for dynamometer motor with optional regenerative feature - Back EMF can be measured in DC motors - Reversible operation - Magtrol’s exclusive M-Test software - Dynamic performance testing SERVO MOTOR - Exchangeable troque transducer modules for easy range scaling - Servo motor and drive with couplings - Movable table with caster leveling wheels - Computer with rack mount keyboard and monitor - Servo Bridge mounted on isolation mounts - Measure drag torque, windage and bearing friction - Measure the back emf of a motor while driving it at programmable speeds - Evaluate the smoothness of a motor to changes in speed and torque load - Full data acquisition capability - Speeds for 0 to 6000 RPM, torque levels from fractions of a Nm up to 25Nm - M-Test software - Coupling guard - E-Stop - Operator work surface on table top