ELEC302 Lab 5

ELEC302 Lab 5 - ELEC302-01 Lab #5: Motor Torque, Speed,...

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ELEC302-01 Lab #5: Motor Torque, Speed, Losses, and Efficiency March 4 th , 2008 David Bunn Michael Schmick The work contained herein is our own. We have neither knowingly given nor received any portion of this laboratory report .
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Introduction: The Prime Mover/Dynamometer Module’s ability to measure torque, speed, power, and efficiency was used to confirm the theoretical abilities of a DC motor. Equipment List: EMS 8821 Power Supply Module EMS 8960 Prime Mover/Dynamometer Module (x2) EMS 9062 Data Acquisition Interface (DAI) EMS 30004 DAI 24V Power Supply (x2) Procedure: Part One: Prime Mover Operation All the components were assured to be set up correctly, including the power connections from the 24V power supplies to the DAI and Prime Mover modules. Also checked was the timing belt’s absence from the dynamometers, since it wasn’t used in Part One. The power supply was assured to be off and the voltage fully counter- clockwise, then the Voltmeter selector switch was set to 7-N. The data collection software was started and the template for Lab 5 brought up. Acquisition was set to Extended and the View to Continuous Refresh. The circuit of Figure P-1 was built with the left-side dynamometer being used. The module was set to Prime Mover mode and its display set to show speed. The power was turned on and adjusted to about 30Vdc. The DC voltage, the speed shown on the Prime Mover display, the speed shown on the data software, and the direction of the motor’s movement were recorded. Then, the display was set to torque, and the torque displayed on the data software and the prime mover display were recorded. Finally, the mode was switched to Dynamometer to assure that the motor stopped rotating. The voltage was then reduced to zero and the power turned off. Next, the leads powering the Prime Mover were reversed.
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ELEC302 Lab 5 - ELEC302-01 Lab #5: Motor Torque, Speed,...

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