Syllabus
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Course Code: EI-PC-204 Course Name: Electrical Measurements & Instrumentation |
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| MODULE NO / UNIT | COURSE SYLLABUS CONTENTS OF MODULE | NOTES |
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| 1 | Fundamentals of Electrical & Electronics measurements: Principle, Construction, Features, Analysis & Performance of moving coil instruments, Moving iron instruments, Electrodynamic instruments, electrostatic instruments and Induction Instruments. Instrument cases (Covers).Construction, operating principle, Torque equation, Shape of scale. MEASURING INSTRUMENTS (AC/DC): use as Ammeter or as Voltmeter (Extension of Range), Use on AC/DC or both, Advantages & disadvantages, Errors (Both on AC/DC) of PMMC types, Electrodynamics Type, Moving iron type (attraction, repulsion & combined types), Induction type. |
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| 2 | LOW & HIGH RESISTANCE MEASUREMENTS: Measurement of resistance (low, medium, high). Limitations of Wheatstone bridge; Kelvin's double bridge method, bridge controlled circuits, Senstivity- Null indicators Difficulties in high resistance measurements, Measurement of high resistance by direct deflection, loss of charge method, Megaohm bridge. GALVANOMETERS: General principle and performance equations of D'Arsonval Galvanometers, Vibration Galvanometer and Ballistic Galvanometer. |
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| 3 | WATTMETERS & ENEGRY METERS: Construction, operating principle, Torque equation, Shape of scale, Errors, Advantages & Disadvantages of Electrodynamic & Induction type Wattmeters; construction, theory, operation, Two element energy meter, average demand indicator. Single Phase Induction Type Energy meter, Compensation & creep in energy meter. POWER FACTOR & FREQUENCY METERS: Construction, operation, principle, Torque equation, Advantages & disadvantages of Single phase power factor meters (Electrodynamic & Moving Iron types) & Frequency meters (Electrical Resonance Type, Ferrodynamic & Electrodynamic types). |
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| 4 | A.C. BRIDGES: General balance equation, Ckt. diagram, Phasor diagram, Advantages, disadvantages, applications of Maxwell's, inductance-capacitance, Hays, Owens, Schering & Wein's bridges, Shielding & earthing, wagner's device. CRO: Block diagram, Sweep generation, vertical amplifiers, use of CRG in measurement of frequency, phase, Amplitude and rise time of a pulse. |
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