TERM: 2ND TERM
WEEK EIGHT
Class: Senior Secondary School 1
Age: 15 years
Duration: 40 minutes of 5 periods each
Date:
Subject: BASIC ELECTRICITY
Topic: BASIC ELECTRIC POWER SYSTEM
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
I.) Define simple power system
II.) Identify the functions of basic electrical power
III.) Identify the parts of electric circuit
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
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PRESENTATION
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TEACHER’S ACTIVITY
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STUDENT’S
ACTIVITY
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STEP 1
INTRODUCTION
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The teacher explains the meaning of simple power system and state it's functions
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Students listens attentively to the teacher
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STEP 2
EXPLANATION
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Teacher Identify and discuss the parts of an electric circuit
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Students exhibit attentiveness and active engagement
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STEP 3
NOTE TAKING
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The teacher writes a summarized
note on the board
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The students
copy the note in
their books
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NOTE
BASIC ELECTRIC POWER SYSTEM
A simple power system refers to the basic infrastructure and components involved in generating, transmitting, distributing, and consuming electrical energy. It typically consists of power generation sources, transmission lines, distribution networks, and end-user facilities.
Functions of basic electrical power
The functions of a basic electrical power system include:
- Power Generation: This is the process of converting various forms of energy (such as mechanical, chemical, or renewable energy) into electrical energy. Power plants, wind turbines, solar panels, hydroelectric dams, and other sources generate electricity.
- Transmission: Once electricity is generated, it needs to be transmitted over long distances from power plants to load centers or substations where it will be distributed to consumers.
- Distribution: Distribution involves delivering electricity from substations to end-users, such as residential, commercial, and industrial customers. Distribution lines, transformers, and distribution substations are used to reduce voltage levels and distribute electricity safely and efficiently.
- Voltage Regulation: Voltage regulation ensures that the voltage levels delivered to consumers remain within acceptable limits.
- Load Balancing: Load balancing involves managing the distribution of electrical load across different parts of the power system to ensure stability and reliability.
Parts of electrical circuit
- Circuit Breaker: A circuit breaker is a protective device used in electrical circuits to automatically interrupt the flow of current in the event of a fault or overload. Its primary function is to prevent damage to electrical equipment, wiring, and appliances and to minimize the risk of fire or electric shock.
- Transmission Lines: Transmission lines are high-voltage cables or conductors used to transmit electrical power over long distances from power plants to load centers or substations. They are typically made of aluminum or copper conductors supported by towers or poles.
- Distribution System: The distribution system refers to the network of power lines, transformers, substations, and other equipment used to deliver electricity from substations to end-users, such as residential, commercial, and industrial customers.
- Load: In the context of electrical systems, load refers to the amount of electrical power consumed by devices, appliances, or equipment connected to the electrical system. It represents the demand for electricity at any given time. Loads can be classified as either resistive, inductive, or capacitive, depending on their electrical characteristics.
EVALUATION: 1. What is a power system?
- Mention 4 functions of electrical power
- Identify the 4 parts of electric circuit
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively
