The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Analyse circuits incorporating resistance, inductance and capacitive elements
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Mathematical problems involving RL and RC combinations in direct current (DC) circuits are solved Completed |
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Mathematical problems involving resistive, inductive and capacitive reactance and overall circuit impedance in alternating current (AC) circuits are solved Completed |
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Why large power factors are desirable in AC circuits is explained Completed |
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Mathematical problems related to power factor correction mechanisms are solved Completed |
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Conditions for resonance in series and parallel RLC circuit combinations are analysed Completed |
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Mathematical problems involving resonance in series and parallel RLC circuit combinations are solved Completed |
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Differing consequences of resonance to both RLC series and RLC parallel circuit are illustrated Completed |
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Apply complex number theory to analyse AC circuit performance
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J operator is explained Completed |
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Rectangular notation of j operator is related to comparable trigonometric and polar notations Completed |
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J operator is used in the addition and subtraction of phasors, applying the most appropriate notation to the solution of phasor problems involving current, voltage and impedance Completed |
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Conductance, admittance and susceptance are distinguished from each other in terms of resistance, impedance and the j operator Completed |
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Problems involving RL and C elements in different circuit combinations using j operator theory are solved Completed |
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Power in AC circuit applications using j operator theory is calculated Completed |
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Analyse operating principles of electrical instrumentation
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Mathematical calculations are performed to demonstrate how moving coil and moving iron instruments may have their ranges changed Completed |
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Mathematical calculations are performed to demonstrate how dynamometer type wattmeters may have their measuring ranges extended Completed |
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Construction, operating principles and functions of electrical meters are outlined Completed |
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Principal methods and instruments used in resistance measurement are detailed Completed |
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Resistance measurements are conducted and verified using appropriate electrical instrumentation Completed |
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Analyse operating principles of DC generators
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EMF equation is applied to solve problems related to DC generators Completed |
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Losses that may occur in DC generators are analysed Completed |
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Appropriate parametric relationships for DC generator losses, together with expressions for output power and efficiency are derived and associated numerical problems are solved Completed |
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Basic principles of DC armature winding techniques are explained Completed |
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Generator armature reaction is explained Completed |
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Expression for armature EMF is derived and applied to solve problems related to DC generators Completed |
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Commutator arcing and how this might be minimised or eliminated is explained Completed |
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Open circuit and load characteristic curves for separately excited, shunt, and compound wound DC generators are derived Completed |
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Analyse operating principles of DC motors
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DC torque equation is applied to solve problems related to DC motors Completed |
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Losses that may occur in DC motors are analysed Completed |
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Appropriate parametric relationships for DC motor losses, together with expressions for output power and efficiency are derived and associated numerical problems are solved Completed |
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Speed equation for a DC motor is derived and corresponding characteristics for different winding configurations are sketched Completed |
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Speed equation and characteristics of different DC motor configurations are applied to explain how DC motor speed may be controlled Completed |
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Reasons for armature reaction and methods of compensating for its effects are identified Completed |
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Why DC motors need variable starting resistors are explained Completed |
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Compare operation of synchronous motors and generators
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Marine applications of synchronous motors and generators are identified Completed |
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Mathematical expression for the magnitude and rotational speed of the magnetic field produced by a three-phase supply is derived Completed |
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Operating principle of synchronous motors is explained Completed |
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Operation of synchronous motors and generators are compared and contrasted Completed |
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Problems using phasor diagrams and mathematical expressions involving the effects of loads and excitation on synchronous motors are solved Completed |
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Advantages and disadvantages of AC synchronous motors and generators are analysed Completed |
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Analyse operation of single and threephase transformers
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Basic transformation ratio and EMF equation for an ideal transformer is derived Completed |
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No load and on load phasor diagrams for an ideal transformer are constructed, with negligible voltage drop through its windings Completed |
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Causes of actual transformer losses are explained and relationships associated with the transformer equivalent circuit are derived Completed |
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Open circuit and short circuit tests are applied to calculate transformer efficiency and voltage regulation Completed |
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Problems related to the operation of auto-transformers are solved Completed |
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Analyse requirements for parallel operation of AC and DC generators
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Conditions required for shunt, series and compound wound DC generators to operate in parallel are identified Completed |
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Numerical problems related to parallel operation of shunt, series and compound wound DC generators are solved Completed |
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Conditions required for AC generators to operate in parallel are identified Completed |
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Numerical problems related to parallel operation of AC generators are solved Completed |
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