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304 Principles of electrical and electronic engineering (1 Understand…

- - - - 4 Understand single and three-phase a.c. circuits
        
        5 Know how to carry out electronic measurement
        
        !EXAM!
        
        5.1 describe how to use multimeters to measure current, voltage and resistance
        
        multimeters: auto range, data capture and transfer, correct range settings.
        
        5.2 describe how to use oscilloscopes in different modes
        
         oscilloscopes: use to carry out a range of tests and measurements, real time and storage. Advantages and disadvantages of oscilloscopes.
        
        5.3 describe how to use electronic instruments for component testing and prepared circuits
        
         component testing: transistors, a series RLC circuit: a resistor, inductor and capacitor (L,C & R), power gain or loss in dB, voltage/current gain.
        
        5.4 describe how to use electronic instruments as signal sources for prepared circuits
        
         signal sources: signal generators, function generators (include sine wave, square wave and saw tooth), signal injection probes.
        
        5.5 describe the use of computers in component testing.
        
         computers: diagnostic information, technical information, websites, use and function as digital multimeter, oscilloscope, spectrum analyser.
        
        4.1 describe the principles of rotating electrical machines used in a.c. circuits
        
         electrical machines: generators, interdependence of frequency, speed, pole pairs,EMF and field strength, synchronous and asynchronous machines
        
        4.2 describe the function of induction motors used in three-phase circuits
        
         induction motors: cage rotor, wound rotor
        
        4.3 describe the function motors used in single-phase a.c. circuits
        
         motors: series universal, split phase, permanent capacitor, capacitor start/ run
        
        4.4 determine three-phase circuit quantities
        
         quantities: line and phase values (current and voltage) in star and delta configurations.
      - 3.1 explain the relationship between common magnetic terms
        
         terms: magnetomotive force (m.m.f.); Magnetic field strength; flux density; total flux; reluctance
      - 3.2 explain the properties of magnetic materials undergoing cyclic magnetisation
        
         properties: coercivity; remanence; saturation; permeability
      - 3.3 explain the relationship between the shapes of hysteresis loops of materials in magnetic circuits
        
         materials: magnetically soft and magnetically hard
      - 3.4 explain electromagnetic behaviour laws
        
         laws: Faraday’s law; Lenz’s law; Flemings rule.
    - -  units: Energy, current, charge, voltage, power and resistance
    - -  resistors: types, construction, material resistivity, tolerances, colour coding, applications (series/parallel connections)
    - -  batteries: construction, charging, discharging, chemical process
    - -  inductive components: types, construction, properties, applications
    - -  capacitors: types, construction, properties, applications (series/parallel connections)
    - -  circuit properties: circuits with Inductors (L) and Capacitors (C) connected in series, charge and discharge, time constants
    - -  circuit properties: circuits with Resistors (R), Inductance (L) and Capacitance (C) connected in series / parallel, power, power factor, kW, kVA & kVAr. (PA)
    - -  electronic circuits: amplifier, oscillator, filter, linear power supply
    - -  components: photocell, photodiode, transistors (Bipolar/FET), zener diodes, diodes, thyristors