SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Know and understand the operation of Electrical Power Transmission functions 
SAQA US ID UNIT STANDARD TITLE
242753  Know and understand the operation of Electrical Power Transmission functions 
ORIGINATOR
SGB Power Plant Operations 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 5  Level TBA: Pre-2009 was L5  4 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
A person credited with this standard will be able to know the major features of transmission system equipment, and
operation and the limitations resulting from the effects of resistance, inductance, and capacitance of transmission lines. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
It is assumed that learners are already competent in:
  • Communication and Mathematical Literacy at NQF Level 4. 
    		•

    UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Explain transmission lines and cables. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Typical operating voltages for transmission and distribution lines are explained according to design specifications. 

    ASSESSMENT CRITERION 2 
    Different types of transmission towers are identified and explained according to their design specifications. 

    ASSESSMENT CRITERION 3 
    Conductor material and conductor layout on the towers is explained according to design specifications. 

    ASSESSMENT CRITERION 4 
    Insulators and the importance of conductor spacing is explained according to design specifications. 

    ASSESSMENT CRITERION 5 
    Features and limitations of transmission cables are explained according to design specifications. 

    ASSESSMENT CRITERION 6 
    Applications of high voltage DC transmission are explained according to local applications. 

    SPECIFIC OUTCOME 2 
    Demonstrate knowledge of transmission line characteristics. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Effects of transmission line conductor resistance and inductance are analysed and explained according to electrical theories. 

    ASSESSMENT CRITERION 2 
    Line voltage drop and power angle as shown by vectors is explained according to electrical theories. 

    ASSESSMENT CRITERION 3 
    Effects of line loading, on voltage drop and power angle are analysed and explained according to electrical theories. 

    ASSESSMENT CRITERION 4 
    The effect of load power factor on voltage drop and power angle is explained according to electrical theories. 

    ASSESSMENT CRITERION 5 
    The need is defined for the generation and provision of Megavars and Megawatts. 
    ASSESSMENT CRITERION RANGE 
    Line losses.
     

    ASSESSMENT CRITERION 6 
    Charging current required due to the line shunt capacitance is explained according to electrical theories. 

    ASSESSMENT CRITERION 7 
    Voltage rise due to line capacitance on an open-ended line is shown through the interpretation of vectors. 

    SPECIFIC OUTCOME 3 
    Define transmission line compensation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Production of reactive power by line shunt capacitance is defined and explained according to electrical theories. 

    ASSESSMENT CRITERION 2 
    Line reactive compensation equipment and compensators defined according to electrical theories. 
    ASSESSMENT CRITERION RANGE 
    Reactors, capacitors, synchronous condensers, and static var.
     

    SPECIFIC OUTCOME 4 
    Explain substation equipment. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The function of transmission stations, and station equipment is explained according to design specifications. 

    ASSESSMENT CRITERION 2 
    Features of different bus arrangements are described and explained according to design specifications. 

    ASSESSMENT CRITERION 3 
    Types of circuit breaker are described and explained according to design specifications. 

    ASSESSMENT CRITERION 4 
    The principle of transformer operation is explained according to requirements. 

    ASSESSMENT CRITERION 5 
    Transformer physical construction is explained according to design specifications. 

    ASSESSMENT CRITERION 6 
    Transformer cooling arrangements is explained according to plant configuration. 

    ASSESSMENT CRITERION 7 
    Auto-transformers design is explained according to design specifications. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this qualification must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this Qualification must be accredited as a provider with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or by an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments at exit points of the Qualification, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in individual Unit Standards as well as the integrated competence described in the Qualification.
  • Anyone wishing to be assessed against this Qualification may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The operations associated with power transmission. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identifying & solving problems in which responses display that responsible decisions using critical and creative thinking have been made. 

    UNIT STANDARD CCFO COLLECTING 
    Collecting, analysing, organizing and critically evaluating information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicating effectively using visual, mathematical and/or language skills in the modes of oral and/or written persuasion. 

    UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and health of others. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrating an understanding of the world as a set of related systems by recognizing that problem-solving contexts do not exist in isolation. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Fundamental  57693   National Diploma: Electrical Network Power Dispatch Controlling  Level 5  NQF Level 05  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  EWSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.