These machines are specially projected for rotating machine tests, allowing to drag the component to try (Engine like operation), or act like brakes (Generator like operation).

The electrical energy produced in the braking is given back to the network through an electronic controller. In both operations (Engine and Brake) its possible:

• To stably regulate the speed of turn of the set, between the rest and the maximun speed.

• To measure the engines torque or resistance and the speed of turn, as consece, know the power loss or yielded by the test components.

These machines are used for developing, quality control and multiple teaching applications:

• Measurements of the engines torque, r.p.m. Thermal and electrical engines power in all of its curve (Engine test benches).
  

• Measurements of resistant and parasitic engine torques. Internal thermal engines friction load loss by renovation studies.
  

• Absorbed power and diverse machine yield studies (alternators, ventilators, pumps, compressors, depressing...) measurements.


• Torque, speed and wheel power vehicle measuremet (Roller test bench).