MODULE DETAILS
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Network Protection DEPNPR617
NOMINAL DURATION IN HOURS 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 selection of appropriate protection devices for transmission and distribution systems, carrying out the testing and commissioning of protection systems, and verification of the settings. |
MODULE PURPOSE
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The purpose of the module is for participants to gain knowledge required for effective protection of transmission and distribution systems in the electrical supply industry. |
MODIFICATION HISTORY |
Nil |
PREREQUISITE AND/OR CO‑REQUISITE MODULES
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Modules that must be delivered and assessed before this module: Basic Electrical Engineering DEEBEE603 Modules that must be delivered concurrently with this module: N/A |
SUMMARY OF LEARNING OUTCOMES
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On successful completion of this module students will be able to: 1. Explain schemes for protection of distribution feeders 2. Explain schemes for protection of transmission feeders 3. Outline a method to apply busbar protection to switchgear 4. Outline the commissioning of network protection systems |
LEARNING OUTCOMES |
ASSESSMENT CRITERIA |
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Learning outcomes specify what students will be able to do as a result of the learning. |
Assessment criteria provide the criteria by which achievement of the learning outcomes will be judged. |
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1 |
Explain schemes for protection of distribution feeders |
1.1 |
Identify faults in overhead lines used in transmission and distribution |
1.2 |
Compare different types and applications of fuses commonly used in networks |
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1.3 |
Outline: (a) procedures for planning the protection devices for distribution feeders using over-current and earth fault relays, and; (b) rules for setting and coordinating these protective devices. |
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1.4 |
Explain: (a) the correlation between the system earthing practices followed, and (b) the choice of earth fault protection device, and (c) how to overcome the hazard of broken HV conductors by sensitive protection. |
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2 |
Explain schemes for protection of transmission feeders |
2.1 |
Explain the application of unit protection in transmission feeders (pilot wire protection) and other forms of comparison such as phase comparators |
2.2 |
Explain: (a) the application of distance protection to transmission feeders, and; (b) safeguarding against incorrect operations due to arc resistance and power swings |
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2.3 |
Outline the process required to enhance a distance protection scheme by the use of power line carrier communication (PLCC) and other equivalent digital communication methods |
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2.4 |
Describe the application of directional protections in transmission systems |
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3 |
Outline a method to apply busbar protection to switchgear |
3.1 |
Explain the application of unit protection to busbars and compare available alternatives. |
3.2 |
Outline the application of numerical relays to large transmission substations and the resulting flexibility |
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3.3 |
Configure a busbar protection system for a substation with multiple busbars and disconnectors (for circuit switching) clearly outlining the problem areas and methods for overcoming spurious trips by check-zone approach. |
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3.4 |
Review and assess the advantages and disadvantages of alternative methods of busbar protection applicable for metal clad MV switchgear such as frame earth type, blocking type and optical sensing. |
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4 |
Outline the commissioning of network protection systems |
4.1 |
Explain the need for testing of current and voltage transformers |
4.2 |
Outline the procedures used to carry out the testing of current and voltage transformers |
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4.3 |
Explain the procedure for testing of over current and earth fault relays |
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4.4 |
Assess the requirements for testing complex protection schemes |
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4.5 |
Review the use of automated test equipment and prepare a specification for test equipment |
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4.6 |
Determine and explain effective procedures for safe commissioning of new protection schemes within existing installations. |
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DELIVERY MODE
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Online and/or face-to-face |
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SPECIALISED RESOURCES |
N/A |
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ASSESSMENT STRATEGY
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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 organisations (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.
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Software/Hardware Used
Software
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EasyPower
Hardware
- N/A