1. 1 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Understand the operating principles of transformers

2. 2 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Understand the operating principles of transformers TE221Electromagnetic induction TE221Eddy currents TE221Transformer calculations Notional Hours P&P2EL Electromagnetic induction P&P2EL Transformers Modules Topics Total Notional Hours 4 18 8 30

3. 3 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Critical Cross-field Outcomes Identify and solve problems Work effectively with others Communicate effectively Organise and manage myself and my activities Collect, analyse, organise and critically evaluate information Use science and technology effectively and critically Demonstrate an understanding of the world as a set of related systems Use mathematics Learner and societal development US: 10719Understand the operating principles of transformers TE221 Electromagnetic induction Understand the definitions, symbols, units of measurement and basic terminology used in electricity and magnetism Understand the result of a conductor being moved through a magnetic field Understand the impact of various factors on the current generated when a conductor is moved through a magnetic field

4. 4 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Topic Specification: TE221 Electromagnetic induction Collect Information Use Multi media Self Study Field visits Media search Interview experts Attend lectures Analyse, plan and make decisions Group Discussions Sketch Case studies Use checklists Develop recommendations Execute, test and evaluate Job assignment Make sketch Complete documents Draft a report Complete a test/questionnaire Learning ActivitiesTopic assessment criteriaAssignment Description WHATWHAT HOW Notional Hours 4 The assessor will observe and confirm that learners: Understand the principles of a magnetically induced current Understand how various factors impact on the current generated when a conductor is moved through a magnetic field A group or individual exercise of viewing video material on transformer principles. Group experimental set-up to demonstrate that a current is generated when a conductor is moved through a magnetic field. 1.A simple experiment is set up where a circuit is attached to an multimeter and a magnet is used to induce a current 2.Indicate the effect of reversing the magnetic poles, varying the speed at which the conductor is moved through the field and adding some loops to create a loose coil with the conductor. 3.Learners write a short report in which the experiment is sketched (with captions) and tabled for assessment.

5. 5 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Critical Cross-field Outcomes Identify and solve problems Work effectively with others Communicate effectively Organise and manage myself and my activities Collect, analyse, organise and critically evaluate information Use science and technology effectively and critically Demonstrate an understanding of the world as a set of related systems Use mathematics Learner and societal development US: 10719Understand the operating principles of transformers Understand the basic symbols and formulas used in transformer calculations Be able to calculate primary and secondary transformer circuit parameters TE221 Transformer calculations Understand the operating principles of a simple transformer Understand the impact of alternating current on an electromagnet

6. 6 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Topic Specification: TE221 Transformer calculations Collect Information Use Multi media Self Study Field visits Media search Interview experts Attend lectures Analyse, plan and make decisions Group Discussions Sketch Case studies Use checklists Develop recommendations Execute, test and evaluate Job assignment Make presentation Complete documents Draft a report Complete a test Learning ActivitiesTopic assessment criteria The assessor will observe and confirm that learners: Understand the impact of alternating current on an electromagnet Understand the operating principles of a simple transformer Understand the basic symbols and formulas used in transformer calculations Are able to do basic transformer calculations Assignment Description WHATWHAT HOW Notional Hours 18 Learners attend a short lecture in which transformer calculation methods are explained Learners prepare a transformer poster which is used to explain transformer operating principles to the group Learners use self study material related to transformer principles 1.Learners prepare a poster to assist them to explain the operation of a transformer 2.Each learner get the opportunity to present to the group: the impact an alternating current will have on the transformer core the basic operating principle of transformers the transformer relationship formulas 2.Learners solve a number of given transformer problems 3.Learners complete a test in which understanding of transformer calculations and principles are demonstrated

7. 7 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Critical Cross-field Outcomes Identify and solve problems Work effectively with others Communicate effectively Organise and manage myself and my activities Collect, analyse, organise and critically evaluate information Use science and technology effectively and critically Demonstrate an understanding of the world as a set of related systems Use mathematics Learner and societal development US: 10719Understand the operating principles of transformers TE221 Eddy Currents Understand the occurrence of eddy currents in a flat conductor moved through an electric field Understand the impact of eddy currents on the moving conductor and how this can be countered by cutting slots in the conductor Understand how eddy currents influence the efficient operation of a transformer and how it can be counteracted

8. 8 Commissioned by PAMSA and German Technical Co-Operation National Certificate in Paper & Pulp Manufacturing NQF Level 2 Topic Specification: TE221Transformer principles Collect Information Use Multi media Self Study Field visits Media search Interview experts Attend lectures Analyse, plan and make decisions Group Discussions Educational games Case studies Use checklists Develop recommendations Execute, test and evaluate Job assignment Make presentation Complete documents Draft a report Complete a test/questionnaire Learning ActivitiesTopic assessment criteriaAssignment Description WHATWHAT HOW Notional Hours 8 1.The fact that eddy currents are generated in a flat conductor moved through a magnetic field is explained to learners. 2.In a group discussion learners should try to explain why the eddy currents are generated and how cutting slits in the conductor will minimise the effect 3.A simple transformer is passed around to show its construction – especially the insulated core leaves 4.Continue the discussion by having the group discuss and summarise why the core is produced from insulated leaves 5.Learners view video material to confirm the principles discussed 6.A multiple choice questionnaire is used to confirm understanding Learners have a group discussion to try and explain the phenomena of eddy currents in transformer cores Learners are supplied with a small transformer (e.g. charger) to view An exercise to view video material on eddy currents in transformers. The assessor will observe and confirm that learners: Understand the occurrence of eddy currents in a flat conductor moved through an electric field Understand the impact of eddy currents on a flat moving conductor and how this can be countered by cutting slots in the conductor Understand how eddy currents influence the efficient operation of a transformer and how it can be counteracted