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: 

Demonstrate knowledge and understanding of communication on electrical interconnected power system 
SAQA US ID UNIT STANDARD TITLE
242762  Demonstrate knowledge and understanding of communication on electrical interconnected power system 
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 
Persons credited with this unit standard will be able to know the different modes of communication, which are employed in operation of the transmission system. 

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 system communication. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Communication is explained as an integral part of a transmission system operation. 

ASSESSMENT CRITERION 2 
Techniques of communication employed in transmission system operation are explained and applied according to specified requirements. 

ASSESSMENT CRITERION 3 
Typical application of the different communication techniques is explained within the applied environment. 

SPECIFIC OUTCOME 2 
Describe the use of supervisory control and data acquisition. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
The function of the System Communication and Data Access (SCADA) system is described according to design specifications. 

ASSESSMENT CRITERION 2 
Collection of data is explained with reference to Remote Terminal Unit (RTU). 

ASSESSMENT CRITERION 3 
Polling of RTUs throughout the system is explained according to specified requirements. 

ASSESSMENT CRITERION 4 
Transfer of data across communication links are explained within the applied environment. 

ASSESSMENT CRITERION 5 
The need for carrier signals and modems are explained according to design specifications. 

ASSESSMENT CRITERION 6 
Factors effecting the rate of data transmission are explained according to requirements. 

ASSESSMENT CRITERION 7 
Data transfer from RTUs to the Central Processing Unit (CPU) memory is explained according to design specifications. 

ASSESSMENT CRITERION 8 
Frequency of CPU update is explained according requirements. 

SPECIFIC OUTCOME 3 
Understand the master information processing station. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Typical master station layout is explained according to requirements. 

ASSESSMENT CRITERION 2 
Functions of CPU, peripheral computers and devices are explained according to design specifications. 

ASSESSMENT CRITERION 3 
Fail-over to stand-by computer are explained within the applied environment. 

ASSESSMENT CRITERION 4 
Uses of applications software are explained according to design specifications. 

ASSESSMENT CRITERION 5 
Operator interfaces are explained within the applied environment. 

ASSESSMENT CRITERION 6 
Operator display functions are explained according to design specifications. 

SPECIFIC OUTCOME 4 
Demonstrate an understanding of SCADA installation and maintenance features. 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
Displaying equipment attributes are explained according to requirements. 

ASSESSMENT CRITERION 2 
Alarm annunciation is explained within the applied environment. 

ASSESSMENT CRITERION 3 
Logging operating events are described within the applied environment. 

ASSESSMENT CRITERION 4 
Features of SCADA installations are described 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 
    Knowledge of monitoring and control communication on a electrical interconnected power system. 

    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
    Core  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.