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EET UNIT PLAN

NAME: Tracy Baptiste

CLASS: 5EET

TOPIC: Electrical Power Systems

TIME FRAME: 5 weeks

Major Ideas to be Explored / National Goals Big Ideas

To develop an understanding of the electricalmachines used in electrical power systems.

To create awareness of the process ofgeneration, transmission and distribution ofelectricity

Electrical Power Systems are interconnected to

produce electricity and to make it readily available

and compatible for consumers

Formal Science Knowledge, Background and

ExperiencesAims

Students should know that:

electricity is produced at a power generatingcompany

consumers use electricity at differing voltages electricity travel long distances via electrical

wires

electricity is a form of energy

Students should:

understand how electrical machines work discover the approaches utilised in the

production, distribution and transmission

of electricity

Possible Alternative (Everyday) Ideas Misconceptions

Solar panels can be used by consumers, thereby

reducing or eliminating the dependency on the

national electrical power system.

Step-up transformers can be used as anaudio amplifier.

A motor can be used to turn a generatorthat will in turn power the same motor and

other equipment (efficiency and

conservation of energy considerations).

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Electrical PowerSystems

ElectricalMachines

Primary Energy

Sources

Motor ControllersDistribution andTransmission

Lines

AC Machines DC Machines

Non-TurbineTurbine

Domestic IndustrialCommercial

Transformer AC Motor AC Generator

(Alternator)

DC Controller AC Controller

FaceplateDOL / ATL

Reduced

Voltage

Resistor Start Star-DeltaAuto-

Transformer

DC Generator DC Motor

Controls

Control

s

Comprises

Connects Consumers

Types

Conversion

Drives

Concept Map:

ConceptMap:

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General Objectives

Students will be able to:

1. Understand the operation of ac and dc machines2. Control ac and dc motors3. Recognise the alternative sources of primary energy for generating electricity4. Develop a power distribution and transmission network grid

List of Lessons:

1. Electrical Motors and Generators2. Single phase Transformer3. Power Generation, Transmission and Distribution4. Motor control

Skills to be developed:

Researching, Reporting, Communication and Presentation Troubleshooting Construction / Practical Problem Solving Interpersonal

Resources to be used Types of Student Experiences / Activities to be Provided

Multimedia projector and laptop Cross-section of rotating machines Magnets, copper winding wire Videos

Experiments Group work Demonstrations Field tripPowergen

Assessment Strategies:

Formative Summative

Oral Questioning End of Topic Traditional Examinations Journal Research Project Group Presentations Laboratory Exercise ( SBA) Laboratory Experiments Performance tasks (construction)

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Teachers Reflections:

Electrical power systems is too large; its more than 1 unit