Tuesday 14 October 2014

Dynamometer Test

Dynamometer Test Points : Dynamometer Test An absorbing dynamometer acts as a load that is driven by the prime mover that is under test. The dyno must be able to operate at any speed, and load the prime mover to any level of torque that the test requires. A dynamometer is usually equipped with some means of measuring the operating torque and speed.
The dynamometer must absorb the power developed by the p-c mover. The power absorbed by the dynamometer must generally be dissipated to the ambient air or transferred to cooling water, Regenerative dynamometers transfer the power to electrical power lines.
Dynamometers can be equipped with a variety of control systems. If the dynamometer has a torque regulator, it operates at a set torque while the prime mover operates at whatever speed it can attain .while developing the torque that has been set,, If the dynamometer has a speed regulator, it develops whatever, torque is necessary to force the prime mover to operate at the set speed.
A motoring dynamometer acts as a motor that drives the equipment under test. It must be able to drive the equipment at any speed and develop any level of torque that the test requires.
Only torque and speed can be measured; Power must be calculated from the torque and speed figures
according to the formula:
Power = Torque x Speed/K

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