Download - Ind. Elec. Lec 01
EE4263 Industrial Electronics
EE4263 Industrial ElectronicsLec 01
Khurram ShahzadPre-Req : Electronics Circuit DesignRecommended Books: Industrial Electronics James Rehg and Glenn Sartori Modern Industrial Electronics Timothy J. MaloneyGrading Policy
Quizzes15 % Assignments15%Presentation10%Midterm Exam20%Final Exam40%2Broad ContentsDC and AC Motors, with control and applicationsSolid State devices in industrial applicationsOp-amp applications and Linear ICsSensors, Instrumentation and Measurement techniquesIndustrial Control Systems and Controllers
3DC MotorsElectromechanical energy conversion
4DC Motors If electrical energy is supplied to a conductor in a magnetic field, the field interaction will produce mechanical force
What are the required conditions ?
Basic operating principle of all DC motors
Force upon the conductor F=B x i x l
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DC MotorsPrinciple of operation6
DC MotorsSeveral coils are wound on the rotor, all experiencing mechanical force
Counter-voltage or back EMFLenzs LawApplied voltage vs. Counter-voltage
At standstill, what is the value of armature current ? 7DC MotorsReversibility of DC machines
8DC Machine ClassificationSeparately Excited
9DC Machine ClassificationSelf ExcitedShunt Machine
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DC Machine ClassificationSelf ExcitedSeries Machine
Also called a universal motorReversing polarity of stator and motorRuns for both DC and AC11Torque-Speed Characteristics
12DC Motor Efficiency
13Service FactorMeasure of the overall capacity built into the motorStall TorqueThe maximum torque a motor can provide with the shaft no longer rotating1414