Assessor Resource

MARL042
Apply basic principles of marine electrotechnology

Assessment tool

Version 1.0
Issue Date: May 2024


This unit involves the skills and knowledge required to explain basic marine electrotechnology principles and to perform basic electrical calculations.

This unit applies to people working in the maritime industry in the capacity of:

Electro-Technical Officer (STCW Electro-Technical Officer Unlimited)

Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited).

Licensing/Regulatory Information

Legislative and regulatory requirements are applicable to this unit.

This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Electro-Technical Officer (STCW Electro-Technical Officer Unlimited) or Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited) and to meet regulatory requirements this unit must be delivered consistent with Marine Orders and with the relevant sections of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW).

Those regulatory requirements include STCW International Maritime Organisation Organization (IMO) model course competencies and areas of knowledge, understanding and proficiency, together with the estimated total hours required for lectures and practical exercises. Teaching staff should note that timings are suggestions only and should be adapted to suit individual groups of trainees depending on their experience, ability, equipment and staff available for training.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

identifying and applying relevant mathematical formulas and techniques to solve basic problems related to marine electrotechnology

identifying and interpreting numerical and graphical information, and performing mathematical calculations, such as resistance of electrical conductors, power output and efficiency in direct current (DC) motors, and driving torque in induction motors

identifying, collating and processing information required to perform basic calculations related to marine electrotechnology

performing accurate and reliable calculations

reading and interpreting written information needed to perform basic electrical calculations

solving problems using appropriate laws and principles.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

basic principles of marine electrotechnology

batteries

cables

circuit breakers

coupling, load sharing and changing over generators, including:

conditions for automatic start of emergency generator and starting methods

control systems for distribution for active and reactive power

excitation systems of generators

methods of synchronisation

power factor

principles of power management, including:

control of start-release of big consumers directly supplied from main switchboard

automatic three-step disconnection of non-essential power consumers

load depending start and stop of generator and automatic load sharing

protections for generators and diesel engines, including:

asymmetrical voltage and current

frequency and voltage stabilisation of shaft generators

open circuit, wire fault and earth-fault monitoring

overload

reverse power

short circuit

under and overvoltage

under and over frequency

safety systems of generators

voltage and frequency control systems

DC motors and rotating machinery

difference between alternating current (AC) and DC

distribution panels

electrical:

current

power

safety

units of measurement

electromagnetic:

force

induction

effective verbal, written and visual communication techniques

electrical theory, including:

electrical circuits

impedance and inductance

Kirchhoff's Law

Ohm’s Law

electrical motors including:

AC motor

DC motor

electrical motor starting methodologies

emergency switchboard

fundamentals of AC, including:

principles

rotating machinery

high voltage (HV)

lighting

main switchboard

measuring instruments for switchboards

operational parameters of DC motors, including:

current

flux density

torque

voltage

parallel circuits

power distribution systems, including:

distribution

insulation

transformers

principles of electromagnetism and electrolytic action

resistance

series circuits

shore connection

work health and safety (WHS)/occupational health and safety (OHS) requirements and work practices.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Practical assessment must occur in a workplace, or realistic industry approved marine operations site or simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

identifying and applying relevant mathematical formulas and techniques to solve basic problems related to marine electrotechnology

identifying and interpreting numerical and graphical information, and performing mathematical calculations, such as resistance of electrical conductors, power output and efficiency in direct current (DC) motors, and driving torque in induction motors

identifying, collating and processing information required to perform basic calculations related to marine electrotechnology

performing accurate and reliable calculations

reading and interpreting written information needed to perform basic electrical calculations

solving problems using appropriate laws and principles.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

basic principles of marine electrotechnology

batteries

cables

circuit breakers

coupling, load sharing and changing over generators, including:

conditions for automatic start of emergency generator and starting methods

control systems for distribution for active and reactive power

excitation systems of generators

methods of synchronisation

power factor

principles of power management, including:

control of start-release of big consumers directly supplied from main switchboard

automatic three-step disconnection of non-essential power consumers

load depending start and stop of generator and automatic load sharing

protections for generators and diesel engines, including:

asymmetrical voltage and current

frequency and voltage stabilisation of shaft generators

open circuit, wire fault and earth-fault monitoring

overload

reverse power

short circuit

under and overvoltage

under and over frequency

safety systems of generators

voltage and frequency control systems

DC motors and rotating machinery

difference between alternating current (AC) and DC

distribution panels

electrical:

current

power

safety

units of measurement

electromagnetic:

force

induction

effective verbal, written and visual communication techniques

electrical theory, including:

electrical circuits

impedance and inductance

Kirchhoff's Law

Ohm’s Law

electrical motors including:

AC motor

DC motor

electrical motor starting methodologies

emergency switchboard

fundamentals of AC, including:

principles

rotating machinery

high voltage (HV)

lighting

main switchboard

measuring instruments for switchboards

operational parameters of DC motors, including:

current

flux density

torque

voltage

parallel circuits

power distribution systems, including:

distribution

insulation

transformers

principles of electromagnetism and electrolytic action

resistance

series circuits

shore connection

work health and safety (WHS)/occupational health and safety (OHS) requirements and work practices.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Practical assessment must occur in a workplace, or realistic industry approved marine operations site or simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Terms and symbols used in the formula for resistivity are used correctly 
 
 
 
Main sources of electromagnetic field (EMF) are identified 
 
 
 
 
 
How the theory of electrolytic disassociation when applied to common electrolytic solutions and electrode materials explains the generation of EMF from chemical sources, is outlined 
 
 
 
 
Form and properties of the magnetic fields surrounding single conductor and multi-turn solenoid coils when carrying an electrical current are compared and contrasted 
 
 
 
Construction and methods of maintaining and repairing typical DC machines are illustrated 
 
 
 
 
 
How three phase AC may be developed out of simple single phase AC is explained 
 
 
 
 
 
Load/voltage curves of AC and DC generators are compared 
 
 
 
Construction, equipment and service of main switchboard and emergency switchboard and distribution panel are outlined 
 
 
 
 
 

Forms

Assessment Cover Sheet

MARL042 - Apply basic principles of marine electrotechnology
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MARL042 - Apply basic principles of marine electrotechnology

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: