Gr 12 Elec Tech Pow Sys ATP 2023-24.pdf

2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY: GRADE 12 (POWER SYSTEMS) 2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY (POWER SYSTEMS): GRADE 12 (TERM 1) TERM 1 WEEK 1 WEEK 2 WEEK 3 WEEK 4 WEEK 5 WEEK 6 WEEK 7 WEEK 8 WEEK 9 WEEK 10 CAPS TOPICS Safety (Generic) RLC RLC RLC 3-Phase AC Generation 3-Phase AC Generation 3-Phase AC Generation 3-Phase AC Generation PAT consolidation, revision and assignment TOPICS/ First Aid HIV/Aids Effect of alternating • Inductive reactance Calculations Principles of three Three phase systems Power in three phase Introduction to Star and CONCEPTS, SKILLS awareness current on R, L and C 𝑋 = 2𝜋𝑓𝐿 • Series and parallel phase AC generation (3ϕ) (3ϕ) systems and Delta calculations AND VALUES OHS act components in series • Capacitive reactance combination circuits • Distribution networks – • Star calculations • Line voltage and current Machine specific safety and parallel single phase impedance containing ONE resistor, Outline generation • Delta • Active power • Phase voltage and measures circuits • Power ONE capacitor and ONE network to distribution • Reactive power current • Phase angle • Delta vs. star inductor network • Apparent power • Losses, etc. • Power factor • Schematic • Frequency changes • Advantages and Application of meters • Phasor and wave • Phasor and wave disadvantages of single • Diagrammatic representation representations of three in three phase (3ϕ) representation vs. three phase systems, • Resonance etc. phase systems, etc. • Wattmeter, etc. • Resonance • Q factor & bandwidth • Phasor diagram REQUISITE PRE- First Aid/HIVRLC series single phase KNOWLEDGE Understanding the basics operating principles of resistors, capacitors and inductors RESOURCES OHS act – safety signs in You Tube video clips and You Tube video clips and You Tube video clips and You Tube video clips and RLC “spook box” You Tube video clips and You Tube video clips and You Tube video clips and related IT (OTHER THAN workshop related IT resources related IT resources related IT resources related IT resources simulation related IT resources related IT resources resources TEXTBOOK) TO First aid training manuals Old question papers Old question papers Old question papers Old question papers Old question papers Old question papers Old question papers ENHANCE LEARNING INFORMAL Class work/case studies/worksheets/homework/ (theory and practical work) ASSESSMENT ASSESSMENT: REMEDIATION SBA (FORMAL) PAT simulation 1 and 2 completed and assignment Safe work practices are types of administrative controls that include procedures for safe and proper work used to reduce the duration, frequency, or intensity of exposure to a hazard. The section on tools and equipment must be infused when doing all PAT simulations. Downloaded from hlayiso.com 1

2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY: GRADE 12 (POWER SYSTEMS) 2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY (POWER SYSTEMS): GRADE 12 (TERM 2) TERM 2 WEEK 1 WEEK 2 WEEK 3 WEEK 4 WEEK 5 WEEK 6 WEEK 7 WEEK 8 WEEK 9 WEEK 10 WEEK 11 CAPS TOPICS Three-phase Three-phase Three-phase Three-phase Three-phase motors & Three-phase motors Three-phase Three-phase Three-phase PAT consolidation Term 2 assessments transformers transformers transformers motors & starters starters & starters motors & starters motors & starters motors & starters and revision TOPICS/CONCEPTS, Introduction to three Calculations Practical: Wiring Introduction to Electrical and mechanical 3Φ Forward and 3Φ Sequence 3Φ Sequence 3Φ Automatic star SKILLS AND phase (3ϕ) (Balanced loads of single-phase three-phase (3ϕ) aspects of three phase (3ϕ) reverse starter with motor control motor control delta starter with VALUES transformers only) transformers to motors motors overload starter with starter with overload • Principle of operation • Ratio three phase: • Three phase • Fault-finding/ • Function of overload (Without overload (With • Function of and connections of three • Line and phase star/star; squirrel cage troubleshooting components on timer) timer) components on phase transformers current, voltage star/delta; induction motor • Motor testing diagrams • Function of • Function of diagrams • Concept and and power delta/star; • Principle of • Principle of operation components on components on • Principle of delta/delta • Commissioning understanding of losses • Power factor operation • Diagram diagrams diagrams operation Practical: Testing • The process involved in • Three phase • Power • Construction preparing the motor and • Wiring on a panel & • Principle of • Principle of • Diagram transformers compared to transformers operation operation • Load including • Advantages starter to be used by the calculation of the • Wiring on a panel single phase PAT Simulation 2 operator overload value and • Diagram • Diagram (practical) & losses and • Applications transformers (delta/star, completed setting of the overload • Wiring on a panel • Wiring on a panel calculation of the efficiency • Calculations on Practical: Conduct star/delta, delta/delta, troubleshooting on a faulty Practical: Connect a Practical: Connect a Practical: overload value and slip, power and star/star) motor and rectify the problem 3Φ forward and 3Φ sequence motor Connect a setting of the efficiency • Construction of Practical: Conduct a motor reverse starter to a starter to a squirrel sequence motor overload • Characteristic transformers test on a motor three-phase motor. cage motor. Set the starter. Set the Practical: Connect a curve of speed vs. • Application of torque Practical: Commission a new Set the overload. Start overload. Start & overload and Star Delta starter to a transformers motor with a starter & stop stop timer. Start & stop, squirrel cage motor. Synchronous overload and Set the overload and • Cooling speed 3Φ Direct on line starter • Safety timer. Start & stop timer: Start & Stop • What is with overload Protection synchronous • Function of components on speed? diagrams • Relation of • Principle of operation synchronous • Diagram speed to • Wiring on a panel generated power •Calculation of the overload value and setting of the overload Practical: Connect a DoL starter to a motor, set the overload Start & stop the motor REQUISITE PRE- Introduction to single- Introduction to Introduction to Introduction to Introduction to single-phase KNOWLEDGE phase transformers. single-phase single-phase single-phase motors and starters Introduction to transformers. transformers. motors and magnetism Introduction to Introduction to starters magnetism magnetism RESOURCES Video clips, laptop and a Chalkboard/ Practical Video clips, laptop Practical transformers (OTHER THAN data projector whiteboard transformers and a data Video clips, laptop and a data TEXTBOOK) TO Video clips, laptop projector projector ENHANCE and a data A workshop with A workshop with necessary LEARNING projector necessary equipment equipment INFORMAL ASSESSMENT: Class work/case studies/worksheets/homework/ (theory and practical work) ASSESSMENT REMEDIATION SBA (FORMAL) PAT simulation and Mid-Year Examination Safe work practices are types of administrative controls that include procedures for safe and proper work used to reduce the duration, frequency, or intensity of exposure to a hazard. The section on tools and equipment must be infused when doing all PAT simulations. Downloaded from hlayiso.com 2

2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY: GRADE 12 (POWER SYSTEMS) 2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY (POWER SYSTEMS): GRADE 12 (TERM 3) TERM 3 WEEK 1 WEEK 2 WEEK 3 WEEK 4 WEEK 5 WEEK 6 WEEK 7 WEEK 8 WEEK 9 WEEK 10 WEEK 11 CAPS TOPICS Programmable logic controllers Programmable logic Programmable logic Programmable logic controllers Programmable logic Revision Prep exams Prep exams Prep Prep Prep exams controllers controllers controllers PAT Mod. PAT Mod. exams exams PAT Mod. PAT Mod. PAT Mod. TOPICS/CONCEPTS, Introduction to the Programmable PLC software and devices • Contactors/ relays The variable speed drive as a The variable speed drive as a SKILLS AND Logic Control Device Difference between analogue • Timers (on delay/ off programmable motor controller programmable motor VALUES • History of the PLC (revision of and digital delay) (Concepts only) controller Grade 11) Logic gates and truth tables • Latching concepts • Basic principle of operation • Basic applications of VSD • Hard wiring vs. soft wiring of AND, OR, NAND, NOT, (interlocking/ retaining • Introduction to VSD (fans/ pumping systems/ (revision) NOR inputs to a PLC (digital) circuits) heating/ ventilation/ air • Methods of speed control • The programmed scan cycle of a • Switches as input devices conditioning systems) • Markers/ flags (memory (mechanical/ hydraulic/ electrical) PLC (Input, process, output) (N/O and N/C) elements) • Start-up and run profiles (with • Basic block diagram (rectifier/ (Revision) • Using sensors as input applications) (programming – • Conversion of hard-wired regulator/ inverter) • Safety and PLC devices (Revision) devices optional) schematics (control • Analog to digital conversion & PAT: HOD checks to see that 100% No theory of operation, only circuits) to ladder logic and digital control of PAT files and project are application of: labelling of symbols (motor • Types of motors used with a VSD completed and assessed - Proximity starters only) • Regenerative braking - Temperature • Applications of PLCs: The - Light PLC as a motor starter - Level (revision) - Overload Outputs on a PLC (Transistor / Relay) REQUISITE PRE- Control devices using hard wiring Logic gates and sensors Introduction to PLC Motor control Motor control KNOWLEDGE Motor starters RESOURCES TO Video clips, laptop and a data Video clips, laptop and a Video clips, laptop and a Motor control VSD ENHANCE projector data projector data projector Types of motors used with VSD LEARNING PLC trainer and necessary Video clips, laptop and a data projector contactors INFORMAL Class work/case studies/worksheets/homework/ (theory and practical work) ASSESSMENT: REMEDIATION ASSESSMENT SBA (FORMAL) PAT project and Preparatory examination Safe work practices are types of administrative controls that include procedures for safe and proper work used to reduce the duration, frequency, or intensity of exposure to a hazard. The section on tools and equipment must be infused when doing all PAT simulations. Downloaded from hlayiso.com 3

2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY: GRADE 12 (POWER SYSTEMS) 2023/24 ANNUAL TEACHING PLANS: ELECTRICAL TECHNOLOGY (POWER SYSTEMS): GRADE 12 (TERM 4) TERM 4 WEEK 1 WEEK 2 WEEK 3 WEEK 4 WEEK 5 WEEK 6 WEEK 7 WEEK 8 WEEK 9 WEEK 10 CAPS TOPICS Revision PAT consolidation Programmable logic Revision Revision NCS exams NCS exams NSC exams NSC exams NSC exams NSC exams and SBA moderation controllers SBA moderation SBA moderation TOPICS/CONCEPTS, Practical: Problem solving using PLC applications: Sequence SKILLS AND VALUES motor control starter with overload and timer Do practical revision of hard-wired starter before doing PLC Starter. Practical: Problem solving using PLC applications: the Star Delta Starter Do practical revision of hard-wired starter before doing PLC Starter Practical: Problem solving using PLC applications: The forward reverse three phase starter Do practical revision of hard-wired starter before doing PLC starter REQUISITE PRE- PLC applications: Sequence motor control starter with overload KNOWLEDGE and timer PLC applications: The star delta starter PLC applications: The forward reverse RESOURCES (OTHER Video clips, laptop and a data Video clips, laptop and a data Video clips, laptop THAN TEXTBOOK) TO projector projector and a data projector ENHANCE LEARNING PLC trainer and necessary PLC trainer and necessary contactors contactors INFORMAL Class work/case studies/worksheets/homework/ (theory and practical work) ASSESSMENT ASSESSMENT: REMEDIATION SBA (FORMAL) Final Examination Downloaded from hlayiso.com 4