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Fluid Coupling or Electromagnetic Clutch


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I am building a test bench where the effectiveness of a brake will be tested at different RPMs . A motor with VFD is speede up to a set speed and then brake is applied by switching the motor off. Instead we want to use a declutching arrangement so that the motor is not stopped , only separated from driving source and brake is applied , measurements taken and then quickly the driven shaft is coupled with the motor for next braking cycle ,May be at a higher or lower RPM. What is better , Electro Magnetic Clutch or a Fluid Coupling ?

Chandra N Bhattacharya.

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The electromagnetic clutch will give quicker decoupling. It is also less messy (less plumbing required) than the fluid coupling.

DrD

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  • 4 weeks later...

Hi,

Consider both, because electromagnetic clutch provide quick response and fluid coupling will work in high torque.

In addition to this also consider the "effect of heat generated during braking", especially when you quickly move to the next RPM range.

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