ELEC302 Lab 6

ELEC302 Lab 6 - ELEC302-01 Lab #6: Separately Excited DC...

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ELEC302-01 Lab #6: Separately Excited DC Motor March 11 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 operation of a separately excited DC motor was explored. Relationships were drawn between speed and armature voltage and torque and armature current. Saturation effects and overall resistance of the motor were also examined. Equipment List: EMS 8821 Power Supply Module EMS 8960 Prime Mover/Dynamometer Module EMS 8211 DC Motor/Generator Module EMS 9062 Data Acquisition Interface (DAI) EMS 30004 DAI 24V Power Supply Procedure: Part One: Measuring Armature Resistance All components were double-checked to be present at the workstation. Power was assured to be off and the voltage control fully counter-clockwise. The Prime Mover was connected to the DC motor with a timing belt. The data software was brought up on the computer and the template for the lab loaded. Extended sample windows were set and the metering view set to Continuous Refresh. The circuit of Figure P-1 was then constructed, with the Dynamometer in DYN mode, displaying Speed, with the load control set at manual and the knob at max. Figure P-1: Separately Excited DC Motor Circuit Setup The power was turned on and the voltage slowly adjusted until I1 measured the rated current of 3.0A. The voltage and current were then recorded, and the resistance derived from them. The voltage was set to zero and the power turned off. Part Two: Motor Speed versus Armature Current The original circuit setup was unchanged while the circuit in Figure P-2 was added to the experiment. With the Dynamometer’s load control set to the minimum position, the armature voltage was set to zero and the field rheostat was set so that the
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This lab report was uploaded on 04/08/2008 for the course ELEC 302 taught by Professor Peeples during the Spring '08 term at Citadel.

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ELEC302 Lab 6 - ELEC302-01 Lab #6: Separately Excited DC...

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