Electrical Power Distribution Information obtained from howstuffworks.com.

Slides:

Advertisements

Similar presentations

Electricity Merit Badge

Advertisements

Electricity in the Home

Basic House Wiring.

12.1 Electricity at Home (Pages )

INTO THE GRID A Study of the Power Grid

Electricity Merit Badge **Contains some graphic images.

BSA Electricity Merit Badge Electricity Merit Badge AC Alternating Current.

Circuits are designed to control the transfer of electrical charge

Photographs of large cities, such as Seattle, Washington, are visible reminders of how much people rely on __________ energy. electrical.

GENERATORS AND TRANSFORMERS. Induced Current in a Generator The effect of inducing a current in a coil by moving a magnet inside it is used for the generation.

Power Grids Electrical power, in our homes and in industry, is really the life blood of our existence Used for heating, cooling, cooking, refrigeration,

Electricity Transmission and Distribution. Transformer A device that transfers electricity from one circuit to another.

Circuits are designed to control the transfer of Electrical Energy

Electricity and Conserving Resources

Construction Methods and Materials Electric Electric.

An Introduction to Electric Power Plants Jeffrey R. Regester.

Lunch & Learn Project Presents to you: “The Electric Power Grid” By: Dexter Hypolite Electrical Engineer VIWAPA.

Power Grid and Your Home

Generating and Using Electricity

11 September 2015Electricity Merit Badge Class Jamboree1 Electricity Merit Badge Class 3 – Electric Power We Use Alternating Current (AC) Safety.

ELECTRICITY. Electric Current  Currents are the rate that electricity flows thru a wire  2 types of currents:  Alternating Current (AC) electricity.

Photographs of large cities, such as Seattle, Washington, are visible reminders of how much people rely on electrical energy.

Electricity and the Grid SPH4C. Power Recall that the power delivered to a circuit or consumed by a load is:

Electrical Power J. Mitchell for AE-210. What Does Electrical Power Do? Provides Energy for Buildings Provides Energy for Buildings Usually all except.

Power and Energy in the Home Alex Skwarczynski and Morgan Briggs.

Introduction to Electricity PART 1

Objective Define Common electrical terms Define Common electrical terms.

Electrical Circuits and Ohm’s Law Monroe. There are two main kinds of circuits. 1.Series circuits a. Each part of the circuit is wired to the next b.

Circuits are designed to control the transfer of electrical charge

Electrical Systems.

20.3 Electric Circuits

Physics Electricity in the home. Direct current (d.c.) is an electric current that always flows in one direction. Made by batteries. Electronic circuits.

Electricity. What is electricity? Electric current – flow of electrons through a _______ Current (I) is measured by how many __________pass a given point.

Sections 12.1 and 12.3 Meeting the Demand for Electricity.

Electrical Energy Transfer The Power Grid.  It involves a lot more than just flipping a switch or plugging something into an outlet!  If you have ever.

Electrical Power Grid. Parts of the Grid: Generation (Power Plants) Transmission Lines Substations Distribution Lines Transformers Customers.

Electricity. Electric Charge Rules: –More protons than electrons: + charge –More electrons than protons: - charge –Like charges repel; opposite charges.

Electric Circuits Series and Parallel Circuits. Circuit Diagrams An electric circuit is a complete path through which charge can flow Circuit diagrams.

Electrical Energy Transformations: Generation and Use.

1.Mouths are quiet. 2.Begin the quick review section of your notes. 3.Raise your hand if you need something.

Magnetism 5 Transformers & Generators. Transformer Device in which alternating current in one coil of wire induces a current in a second wire. Primary.

Electrical Energy (electricity). What is electricity? It is the flow of moving electrons When electrons flow, it is called an electric current.

Mains Electricity Van de Graaff Generator Why are birds not electrocuted on power lines?

Electricity in the Home CBE. Wiring a plug DC and AC DC stands for “Direct Current” – the current only flows in one direction: AC stands for “Alternating.

Direct & Alternating Currents Gr 9 Science. Direct Current (DC) The current from a cell is called direct current because charged particles travel through.

ELECTRICITY What would life be like without electricity? List 4 things that you would miss the most: 1) ______________________________ 2) ______________________________.

Generating Electrical Energy Generating Electricity Diagram - Electric Power Generation and Use:

Electricity Notes 5 Electric Power – the rate at which _______________________ the rate at which _____________________ is converted into another form of.

Unit 13 Electric Circuits

Electrical Circuits Parts of a simple circuit: Wire Load

ELECTRICITY Intro to Agriculture AAEC – PV Spring 2015.

An Overview of Electricity: from the power plant to your home

Craig T. Riesen Energy Workshop II 1 Electricity & Generation Basics of Electricity and Electrical Transmission Transmission Generation electrons.

Electrical Energy Generation and Transmission Physical Science Chapter 21 Section 3.

Quiz: What is the voltage difference across the 25-  resistance? a) 0.1 V b) 2.5 V c) 6 V d) 25 V e) 60 V.

Section 7.3 Electrical Energy Circuits are pathways for electricity to flow. – Unlike static electricity, which is short-lived and fast, current flowing.

Electrical Energy Transfer.  It involves a lot more than just flipping a switch or plugging something into an outlet!  If you have ever “lost “ power,

P2 - Physics Mains Electricity

A Current which is both positive and negative______________(11) B Provides the potential difference in a dc circuit ___________(7) C The unit of charge.

Chapter 7 Section 3.

Generating Electrical Energy

Objective Define Common electrical terms.

Power Recall that the power delivered to a circuit or consumed by a load is:

P2.5.Mains Electricity AC and DC Current Cables and Plugs

P2 - Physics Mains Electricity.

Presentation transcript:

Electrical Power Distribution Information obtained from howstuffworks.com

The Power Plant Power plants consist of a spinning electrical generator. Generator can be made to spin by steam from burning coal, steam from a nuclear reactor, water from a hydroelectric dam, etc. Generates 3-phase AC power

Single-Phase AC (Alternating Current) What is in your house? Oscillating power = alternating current DC (direct current) is a steady stream of electrons flowing one direction. Ex: a battery

Three-Phase Power What is produced at a power plant? Three Phases of AC Power offset 120 degrees from each other. Why three phases? At any given moment one of the three phases is nearing a peak so maximum power output.

Power Plant Four wires coming out of a power plant: three phases plus a ground Which one do you think is the ground? Hint: It doesn’t need insulators!

Transmission Substation Uses transformers to step up the voltage Ex: 12,000 volts out of the power plant is stepped up to 500,000 volts for transmission. Why? Increasing the voltage reduces power loss when traveling long distances. Average transmission distance is 300 miles.

Typical High Voltage Transmission Lines Do you see the sets of three??

Power Substation Power coming off the transmission lines use transformers to stepped-down the voltage to less than 10,000 volts. Distributes power in multiple directions. Can be disconnected from the transmission grid if necessary.

Distribution Power goes from the transformer to the “distribution bus”. The distribution bus distributes power to two separate distribution lines at two different voltages (standard line voltage ~7,200V and a higher voltage).

At your house… There is usually another transformer near your house stepping down the voltage even further. Only one of the three original phases will enter your house. A typical house uses 240V for large appliances like electric stoves and air conditioning systems and 120V for standard plug in the wall items like TVs and toasters.

At your house The 240V enter your house through a watt- hour meter. This is how the power company charges you for usage.

Fuses and Circuit Breakers Power enters your house through a fuse and/or circuit breaker. THESE ARE SAFETY DEVICES! For example if wire comes loose, a mouse chews through a wire, a motor overheats and melts, etc. a fuse will blow or a circuit will trip so power is cut off to avoid fires.

Review Step 1: Electricity leaves Power Plant in ____ phases. Step 2: Voltage is stepped up for transmission to minimize _______.

Review Step 3: Voltage is stepped-down at the __________. Step 4: Voltage is further stepped down and enters your house at ____ Volts.

Check your answers! Step 1: Electricity leaves Power Plant in three phases. Step 2: Voltage is stepped up for transmission to minimize power loss. Step 3: Voltage is stepped-down at the substation. Step 4: Voltage is further stepped down and enters your house at 240 Volts.