Electrical Machines and Equipment
Electrical Machines and Equipment
Electrical Machines and Equipment
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<strong>Electrical</strong> Technology Department<strong>Electrical</strong> <strong>Machines</strong> & <strong>Equipment</strong>sDetailed Theoretical ContentsHours Contents Related Tasks321. Fundamentals of AC circuits <strong>and</strong> their analysisAlternating current Definition of AC current. Generation of AC voltage. Sinusoidal alternating current. Waveform, frequency, <strong>and</strong> periodic time. Instantaneous value. RMS value of AC voltage <strong>and</strong> current. Average value of AC voltage <strong>and</strong> current. Peak <strong>and</strong> form factors. Phasor representation of sinusoidal waveforms. Phasor algebra. Addition <strong>and</strong> subtraction of phasor quantities. Multiplication <strong>and</strong> division of phasor quantities.Resistance, inductive, <strong>and</strong> capacitive reactance’s Resistance in AC circuits. Inductive reactance in AC circuits. Capacitive reactance in AC circuits. Phasor diagram of restive, inductive <strong>and</strong> capacitiveloads. Ohm's law in AC circuits. Series connection. Voltage divider rule. Resonance in series connected circuits. Parallel connection. Current divider rule. Resonance in parallel connected circuits. Series/Parallel connections. Application of Kirchoff's laws to simple circuits.Work <strong>and</strong> power in single phase AC circuits. Apparent power. Active power. Reactive power. Power triangle. Power factor. Power measurement in single phase circuits.Basic KnowledgeA4, B3, B4, B6,B7, B8, B9, C2,C3, C6, C7, D5,D9, E3, E4, E5, F3,F5, H2, H11, J5- 17 -
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