Basic Electricity - Senior Secondary 2 - Distribution of electricity II

Distribution of electricity II

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TERM: 1ST TERM

WEEK SIX

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: DISTRIBUTION OF ELECTRICITY II

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Describe the layout of components of electricity distribution

II.) State the functions of substations, transformers, distribution lines, and feeders

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher discusses the general layout of components of electricity distribution

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher discusses functions of substations, transformers, distribution lines, and feeders

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

DISTRIBUTION OF ELECTRICITY II

Layout of components of electricity distribution

The distribution of electricity involves several key components: substations, distribution lines, transformers, and meters. Substations receive high-voltage electricity from transmission lines and step it down for distribution via lower-voltage lines. Distribution lines carry the electricity to homes and businesses. Transformers further reduce the voltage for safe use. Meters measure electricity usage for billing purposes. This layout ensures efficient and reliable delivery of electricity to end-users.

Functions of substations, transformers, distribution lines, and feeders

  1. Substations:

   - Receive high-voltage electricity from transmission lines.

   - Step down the voltage to levels suitable for distribution.

   - Provide switching and protection functions.

   - Monitor and control the flow of electricity within the distribution network.

  1. Transformers:

   - Change the voltage levels of electricity to match the requirements of the distribution system and end-users.

   - Step up voltage for long-distance transmission and step down for local distribution.

   - Improve efficiency by reducing energy losses during transmission and distribution.

  1. Distribution Lines:

   - Carry electricity from substations to consumers, such as homes, businesses, and industries.

   - Distribute electricity at lower voltages to ensure safety and meet consumer demand.

   - Form a network of wires and cables connecting substations to consumers' premises.

  1. Feeders:

   - Branches of distribution lines that deliver electricity to specific areas or neighborhoods.

   - Divide the distribution network into smaller sections to manage and control the flow of electricity.

   - Provide localized distribution and ensure reliability by minimizing the impact of outages or faults.

EVALUATION: 1. Briefly describe the layout of components of electricity distribution

  1. Identify two functions of a substation
  2. State two functions of a transformer

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively