MODULE DETAILS

DEIEMD610 : AC Electrical Motors and Variable Speed Drives

Nominal duration: 60 hours total time commitment

This time commitment includes the structured activities, preparation reading, and attendance at each webinar, completing exercises, practical assessments and proctored assessments.

It is also expected that students spend additional time on readings, personal study, independent research and learning, practicing on remote labs and required software and working on any projects and assignments.

This module covers the principles of AC motor construction, operation, maintenance, troubleshooting; components and operation of induction motors; variable speed drive operation; power electronic converters, EMC, motor protection; and installation and fault-finding for variable speed drives.

MODULE PURPOSE

The purpose of the module is for participants to develop understanding of the range, functions, applications, selection, maintenance and troubleshooting of AC electrical motors and drives.

PRE-REQUISITE MODULES/UNIT(S)

Modules that must be delivered and assessed before this module:

• Fundamentals of Electrical Engineering and Power Distribution DEIFEP601

Modules that must be delivered concurrently with this module:

• N/A

ASSESSMENT STRATEGY

METHODS OF ASSESSMENT

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, structured assessments, samples and questioning. This will include short answer questions on the knowledge content, the use of remote and virtual labs, and writing tasks to apply the learning to academic tasks.

CONDITIONS OF ASSESSMENT

Assessor Requirements:

Assessors must satisfy the assessor requirements in the standards for registered training organisation (RTOs) current at the time of assessment.

Assessors must also hold a tertiary qualification in engineering or related field.

The RTO must also ensure that trainers and assessors keep their industry knowledge up to date through ongoing professional development.

Assessment Conditions:

Questioning techniques should not require language, literacy and numeracy skills beyond those required in this module. The candidate must have access to all tools, equipment, materials and documentation required.

The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Assessments may be open book assessment and may be completed off campus. Invigilation software will be used for some assessments to ensure authenticity of work completed.

Model answers must be provided for all knowledge-based assessments to ensure reliability of assessment judgements when marking is undertaken by different assessors.

SUMMARY OF LEARNING OUTCOMES

On successful completion of this module students will be able to:

1. Explain fundamental principles of AC motor construction, operation, maintenance and troubleshooting
2. Outline components and operation of induction motors
3. Outline the operation of variable speed drives for induction motors
4. Analyse applications of power electronic converters, electromagnetic compatibility (EMC) and motor/converter protection
5. Outline effective installation and fault-finding techniques for AC variable speed drives

Learning Outcomes

Learning outcomes specify what students will be able to do as a result of the learning.

ASSESSMENT CRITERIA

Assessment criteria provide the criteria by which achievement of the learning outcomes will be judged.

1. Explain fundamental principles of AC motor construction, operation, maintenance and troubleshooting

1.1.  Outline basic characteristics of the construction of AC motors

1.2.  Interpret motor torque-speed curves

1.3.  Explain the following motor operation parameters: (a) efficiency, (b) torque, (c) inertia, (d) power (e) power factor

1.4.  Determine key attributes for effective maintenance of AC motors

2.1.  Outline the design, components and operation of induction motors

2.2.  Identify effective methods for determining losses and efficiency

2.3.  Determine effective methods used for motor protection

3.1.  Outline the characteristics and applications of variable speed drives

3.2.  Identify special considerations for the use of variable speed drives in hazardous areas

4.1.  Compare common types and operation of power electronic converters and inverters

4.2.  Identify EMC issues when using variable speed drive equipment

4.3.  Determine effective methods for the protection of motors and converters

5.1.  Outline the key features of an effective control system for AC variable speed drives

5.2.  Justify selection of AC converters for variable speed drive applications

5.3.  Outline installation and fault-finding techniques for variable speed drives

Delivery Mode

Online and face-to-face

Specialised Resources

N/A