Formats and tools
- Unit Description
- Reconstruct the unit from the xml and display it as an HTML page.
- Assessment Tool
- an assessor resource that builds a framework for writing an assessment tool
- Assessment Template
- generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
- Assessment Matrix
- a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
- Wiki Markup
- mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
- Evidence Guide
- create an evidence guide for workplace assessment and RPL applicants
- Competency Mapping Template
- Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
- Observation Checklist
- create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)
- Self Assessment Survey
- A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
- Moodle Outcomes
- Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
- Registered Training Organisations
- Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver MARL6001A, 'Apply intermediate principles of marine electrotechnology'.
- Google Links
- links to google searches, with filtering in place to maximise the usefulness of the returned results
- Books
- Reference books for 'Apply intermediate principles of marine electrotechnology' on fishpond.com.au. This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to ntisthis.com for every purchase, so go nuts :)
Elements and Performance Criteria
1 | Apply concepts of resistivity, resistance and capacitance to series and parallel AC and DC circuits | 1.1 | Calculations are performed to solve problems related to resistance, voltage drop, current and power in series and parallel circuits |
1.2 | Calculations are performed to solve problems related to temperature coefficient of resistance and change of resistance of a conductor with a change of temperature | ||
1.3 | Basic relationships that give total equivalent capacitance for capacitors arranged in series and parallel combinations are derived | ||
1.4 | Relationships that give total equivalent capacitance to solve numeric problems involving alternating current (AC) and direct current (DC) circuits are applied | ||
2 | Explain how principles of electrolytic action apply to electrical cells and batteries | 2.1 | Kirchhoff’s circuit laws are explained |
2.2 | Calculations to solve problems involving currents, voltage drop and terminal potential difference for cells connected to form batteries in series and in parallel are performed | ||
2.3 | Calculations to solve secondary cell charging and discharging problems are performed | ||
2.4 | Calculations to solve problems related to the efficiency of cells are performed | ||
3 | Analyse a magnetic circuit | 3.1 | Key parameters of magnetic circuits are identified |
3.2 | Formula for calculating the amount of flux generated by a multi turn solenoid coil carrying a current to give the B/H relationship is applied | ||
3.3 | Significance of the varying slopes in the B/H curves for a solenoid coil with air, cast iron, cast steel and mild steel cores is explained | ||
3.4 | How a magnetic circuit may be created by using a toroidal core within the solenoid coil is shown | ||
3.5 | Calculations to solve problems relating to magnetic circuits using different materials in different parts of their cores, including air gaps, are performed | ||
3.6 | Effect on flux density of applying an alternating magnetising force to an iron core is shown diagrammatically | ||
4 | Interpret electromagnetic consequences of a conductor moving relative to a magnetic field | 4.1 | Faraday’s and Lenz’s Laws are applied to solve problems relating to the electromagnetic induction of EMF and current |
4.2 | Generation of EMF is illustrated by a simple, single loop conductor rotating in a uniform magnetic field and how this EMF may be tapped to an external circuit as either AC or DC is explained | ||
4.3 | How alternating electrical quantities may be represented by rotating phasors is illustrated and explained | ||
4.4 | Relationships between instantaneous, maximum, average and RMS values of sinusoidally alternating electrical quantities is derived | ||
4.5 | Mathematical problems are solved by applying relationships between instantaneous, maximum, average and RMS values of sinusoidally alternating electrical quantities | ||
5 | Analyse circuits that incorporate combinations of resistive, inductive, and capacitive elements | 5.1 | Time constant for different circuit combinations subjected to DC EMF’s is defined |
5.2 | Calculations are performed to solve problems involving time constants in DC circuits with changing rates of current in resistive/inductive elements and changing voltages through resistive/capacitive circuit elements | ||
5.3 | Differentiation is made between inductive reactance, capacitive reactance and impedance as applied to AC circuits | ||
5.4 | Effects of inductive and capacitive reactance upon phasor relationships between applied AC voltage and current are shown | ||
5.5 | Concept of total impedance is applied to solution of problems involving single phase AC quantities in the presence of both resistive/inductive and resistive/capacitive circuit elements, arranged in either series or parallel | ||
5.6 | Power factor is defined and concepts of real and reactive power usage are applied to solution of problems involving RL and RC elements | ||
6 | Analyse operation of polyphase AC circuits | 6.1 | How three phase AC may be developed out of simple single phase AC is explained |
6.2 | Voltage and current relationships between line and phase in both Star and Delta 3 phase connections are derived | ||
6.3 | Standard Star to Delta and Delta to Star conversion relationships for current and voltage are derived | ||
6.4 | Numeric problems involving both balanced and unbalanced circuit loads are solved | ||
6.5 | Relationships between kW, kVA and kVAr for 3 phase AC circuits is derived | ||
6.6 | Calculations are performed using the relationship between kW, kVA and kVAr to solve problems in 3 phase AC circuits | ||
7 | Describe basic operating principles of shipboard DC machinery | 7.1 | Schematic circuits are prepared for separately excited, series, shunt and compound connected generators and motors to illustrate wiring arrangements used with DC machines |
7.2 | EMF equation for a DC generator to solve shipboard problems is applied | ||
7.3 | Torque equation for a DC motor to solve shipboard problems is applied | ||
7.4 | Expression linking back EMF parameters for a DC motor is derived and used to solve shipboard problems | ||
7.5 | Various losses that can occur in DC motors and generators are calculated | ||
8 | Perform calculations related to operation of AC generators | 8.1 | Construction features of the AC synchronous generator are explained |
8.2 | EMF equation for an AC generator is derived, taking into account distribution and pitch factors | ||
8.3 | Expression for the magnitude and speed of the rotating flux generated by a three-phase supply is derived | ||
8.4 | Voltage regulation for synchronous generator is defined | ||
8.5 | Effect of power factor on load characteristic of an AC generator is illustrated | ||
9 | Perform calculations related to operation of three-phase AC induction motors | 9.1 | Construction features of the AC induction motor are explained |
9.2 | Expression for slip of an induction motor rotor is derived and applied to frequency of its rotor EMF and current | ||
9.3 | Expression for magnitude of rotor EMF and current is derived, taking into account distribution and pitch factors | ||
9.4 | Relationships between rotor torque, rotor losses and slip indicating factors that affect torque are outlined | ||
9.5 | Significance of torque/slip curves for an induction motor is explained | ||
9.6 | Relationship between starting torque and applied voltage is established and consequences of this upon starting methods are outlined | ||
10 | Explain operating principles of basic electrical instrumentation | 10.1 | Schematic circuit diagrams are prepared that illustrate the main features and applications of moving coil and moving iron voltmeters and ammeters |
10.2 | Schematic circuit diagrams are prepared that illustrate the main features and applications of air and iron cored dynamometer type wattmeters | ||
10.3 | Dangers associated with current and voltage transformers on high current and voltage systems are identified |