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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Control frequency and voltages in an Islanding condition on electrical networks 
SAQA US ID UNIT STANDARD TITLE
116407  Control frequency and voltages in an Islanding condition on electrical networks 
ORIGINATOR
SGB Power Plant Operations 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  6 
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 
The person credited with this unit standard is able to:
1. Control load following,
2. Voltages and monitor island condition 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Basic electrical theory.
  • Power system operation fundamentals.
  • Basic Protection.
  • Power station operation.
  • Basic Transmission operation. 
    		•

    UNIT STANDARD RANGE 
  • Frequency and voltage, shortages and surpluses (under/over frequency/voltage).
  • Includes islanding within any designated area. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Control island frequency and voltage. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Information of island condition obtained. 

    ASSESSMENT CRITERION 2 
    Extent of island condition ascertained. 

    ASSESSMENT CRITERION 3 
    Local plant condition assessed and corrective action to stabilise implemented. 

    ASSESSMENT CRITERION 4 
    Local control center established according to regulatory requirements. 

    ASSESSMENT CRITERION 5 
    Possible solutions determined to ensure minimum risk to system. 

    ASSESSMENT CRITERION 6 
    Island frequency and voltage condition determined. 

    ASSESSMENT CRITERION 7 
    Adjustments performed to stabilise island according to guidelines and procedures. 

    ASSESSMENT CRITERION 8 
    Island frequency and voltage controlled within parameters. 

    ASSESSMENT CRITERION 9 
    Instructions issued in accordance to regulatory requirements. 

    SPECIFIC OUTCOME 2 
    Monitor island conditions. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Information is continuously monitored to ensure generation capacity meets the actual demand. 

    ASSESSMENT CRITERION 2 
    System alarms are responded to according to operating requirements. 

    ASSESSMENT CRITERION 3 
    Information communicated to key receivers according to organizational requirements. 

    SPECIFIC OUTCOME 3 
    Control out of normal system conditions. 
    OUTCOME RANGE 
    Line trips, loss of load and constraints within island 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Out of normal conditions identified. 

    ASSESSMENT CRITERION 2 
    Out of normal conditions / deviations analysed by comparing current conditions with required conditions. 

    ASSESSMENT CRITERION 3 
    Possible solutions determined to ensure minimum risk to system. 

    ASSESSMENT CRITERION 4 
    Corrective action implemented as per system operating guidelines, procedures and agreements. 

    ASSESSMENT CRITERION 5 
    Actions implemented and reviewed to meet system requirements. 

    ASSESSMENT CRITERION 6 
    Information communicated to key receivers according to organizational requirements. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
    2. Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA.
    3. Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures.

    The assessment of qualifying learners against this standard should meet the requirements of established principles. Practical assessment activities will be used, which are appropriate to the contents in which qualifying learners are working. These activities will include an appropriate combination of self and peer assessment, practical and oral assessments, observations etc.

    The assessment should ensure that all the specific outcomes, critical cross-field outcomes and essential embedded knowledge be assessed. The specific outcomes must be assessed in its own right, through oral and practical evidence. It cannot be assessed by observation only.

    The specific outcomes and essential knowledge must be assessed in relation to each other. If a qualifying learner is able to explain the essential embedded knowledge, but is unable to perform the specific outcomes, then they should not be assessed as competent. Similarly, if a learner is able to perform specific outcomes, but is unable to explain or justify their performance in terms of the essential embedded knowledge, they should not be assessed as competent.

    Evidence of the specified critical cross-field outcomes should be found, both in performance and in the essential embedded knowledge.

    Performance of specific outcomes must actively affirm target groups of qualifying learners, not unfairly discriminate against them. Qualifying learners should be able to justify their performance in terms of these values. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • System operating guidelines and procedures relating to controlling island frequency is known and understood.
  • Communication, structures, procedures and processes is known and understood.
  • Geographical layout of interconnected power system is known.
  • Generating plant parameters, limitations and constraints are known.
  • Knowledge and understanding of Transmission constraints pertaining to generating plant are demonstrated.
  • Safety and regulatory requirements is understood.
  • Causes and effects of abnormal conditions are comprehended.
  • Water management requirements and constraints are known.
  • Knowledge of alarm and alarm classifications, priority requirements, causes and effects of actions is demonstrated.
  • Establishment of a local control centre. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Problem solving: Identify and solve problems in which responses display that responsible decisions using critical and creative thinking have been mad. 

    UNIT STANDARD CCFO WORKING 
    Teamwork: Work effectively with others as a member of a team, group, organization or community 

    UNIT STANDARD CCFO ORGANISING 
    Self organization and management: Organise and manage oneself and one's activities responsibly and effectively 

    UNIT STANDARD CCFO COLLECTING 
    Information evaluation: Collect, analyze, organise and critically evaluate information 

    UNIT STANDARD CCFO COMMUNICATING 
    Communication: Communicate effectively using visual, mathematical and/or language skills in the modes of oral and/or written presentation 

    UNIT STANDARD CCFO SCIENCE 
    Science and Technology: Use science and technology effectively and critically, showing responsibility towards the environment and health of others 

    UNIT STANDARD CCFO DEMONSTRATING 
    Inter-relatedness of systems: Demonstrate 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 
    A candidate will be regarded not yet competent should the safety of people, plant and materials be jeopardized during any stage of the assessment.

    Range:
  • Frequency and voltage, shortages and surpluses (under/over frequency/voltage).
  • Includes islanding within any designated area. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  48978   Further Education and Training Certificate: Electrical Network Control  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  EWSETA 
    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 
    Core  61570   National Diploma: Power Plant Process Control Operations  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.
     
    1. Kelvin Power (Pty) Ltd 
    2. MPUMELELO TRAINING 


    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.