Unit 3 - Single Phase AC Induction Motors

6.2.1 Construction of an Alternating Current Motors - Single phase
Single Phase Induction Motor, How it works ?

Start & Run Capacitors

Single phase induction motors - Very good explanation on the working as well as construction

6.2.3 Configuration of motor connections - Single phase


See training material provided


Single Phase Motor Wiring Diagrams
http://iowasprayfoam.co/single-phase-motor-wiring-diagrams/


How to wire single phase motor with start/run/permanent capacitors


How To Wire Most Motors For Shop Tools and DIY Projects


Single Phase Starter Connections


6.2.4 Types of single phase alternating current motors


AC motor - Wiki info - mostly Single Phase.
https://en.wikipedia.org/wiki/AC_motor


Types of single phase motors
http://top10electrical.blogspot.nl/2015/01/types-of-single-phase-motors.html


Commutator motors
a. Repulsion
b. Universal
c. AC Series motor
d. Repulsion Inductance motor


How do Universal Motors work ?


Universal Motor - Construction, Working And Characteristics
http://www.electricaleasy.com/2014/02/universal-motor-construction-working.html


How DC motors and universal motors work


A repulsion motor
https://en.wikipedia.org/wiki/Repulsion_motor
http://allaboutelectricalworld.blogspot.in/2014/06/repulsion-induction-motor-working.html


Repulsion-induction Motor
http://www.electrical-engineering-assignment.com/repulsion-induction-motor


Repulsion-induction Motor / Shaded and Universal motors



SINGLE PHASE INDUCTION MOTORS no commutator.
a. Split phase

  1. Capacitor start induction motor.
  2. Capacitor start capacitor run induction motor (two value capacitor method).
  3. Capacitor capacitor run induction motor.
    b. Shaded pole
    c. Reluctance start type


AC Motors: Principle of Operation
http://www.johnsonelectric.com/en/resources-for-engineers/ac-motors/principle-of-operation


Shaded pole - https://circuitglobe.com/shaded-pole-induction-motor.html


**Reluctance start type and split motor"
https://en.wikipedia.org/wiki/Reluctance_motor


Split phase - Types of Single Phase Induction Motor | Split Phase Capacitor Start Run Shaded Pole


Starting Method of Split Phase Induction Motor


Single phase capacitor motor



Single Phase AC Induction Motors Types

6.2.5 Application of alternating current motors - Single phase


Most of the applications was cover in materials supplied.
http://www.studyelectrical.com/2017/11/core-type-and-shell-type-transformers-comparison-application.html

6.2.6 Testing principles of single phase alternating current motors


See Training Center video and learning materials supplied


Training Center Video
https://www.dropbox.com/s/x2dppiagk6mfzct/Single%20Phase%20Capacitor%20Motor%201.m4v?dl=0
Testing of electrical motors
https://www.dropbox.com/s/gytdz2v2bvg3zrs/Testing%20Electrical%20motors.m4v?dl=0



Single Phase Motor Test


How-To Troubleshoot a Motor and Adjust Centrifugal Switches


6.2.7 Protection of motors - Single phase


6.2.8 Calculation of motor properties - Single phase


Cell phone app
Mobile electrician


All the required information will be available on the motors name plate, if there is no name plate, what info can you use in any formula??


You might have to run the motor under load, take current (amp) readings on all phases, the voltage you are running the motor at, and possibly the resistance of each coil will be needed.
Will also have to measure the speed with a taco, and only then can you determine how many poles the motor has


There is much more of these unknowns if no info is available.


The single phase AC motor operates as a two phase motor. The secret is reactance!

Intro:

Very good info for any beginner


Jeremy Fielding Check out this site
https://www.youtube.com/channel/UC_SLthyNX_ivd-dmsFgmJVg/videos


How Motors Work For Beginners (Ep 1):


How Motors Work For Beginners: Single Phase Induction and Shaded Pole Motors


How Motors Work Question and Answer Session 1


Motors and Motor Starting - used a computer voice but a very good explanation of single phase as well as 3 phase.
http://slideplayer.com/slide/3420293/


AC Electric Motor


The Mighty Motor

Training Material : That we are using.


1. EXPLAIN SINGLE-PHASE MOTORS
https://www.dropbox.com/s/19hb14359onpi6t/EXPLAIN%20SINGLE-PHASE%20MOTORS.pdf?dl=0


2. CONNECT A SINGLE-PHASE MOTOR TO A POWER SUPPLY
https://www.dropbox.com/s/dt5qi10n35tq387/CONNECT%20A%20SINGLE-PHASE%20MOTOR%20TO%20A%20POWER.pdf?dl=0


3. Single Phase AC Machine components
https://www.dropbox.com/s/h5tlth0fv2w6j1z/SinglePhase%20AC%20Machine%20components.pdf?dl=0


4. STUDENT WORK BOOK EXPLAIN SINGLE-PHASE MOTORS
https://www.dropbox.com/s/5lrpkl82p899dr7/STUDENT%20WORK%20BOOK%20EXPLAIN%20SINGLE-PHASE%20MOTORS.pdf?dl=0


5.CONNECT A SINGLE-PHASE MOTOR TO A POWER SUPPLY Work Book
https://www.dropbox.com/s/cpff0xwlvpvf09y/CONNECT%20A%20SINGLE-PHASE%20MOTOR%20TO%20A%20POWER%20SUPPLY%20WB.pdf?dl=0




Training Center Video


Single Phase Motor Construction
https://www.dropbox.com/s/p0sg3ng544544fh/Single%20Phase%20Motor%20Constuction-1.m4v?dl=0


Fundamental Single Phase Motor Operation
https://www.dropbox.com/s/nmkj0k36d2sul69/Fundamental%20Single%20Phase%20Motor%20Oporation-1.m4v?dl=0


Types Of Single Phase Induction Motors
https://www.dropbox.com/s/rvsitd8jmdaag1r/Types%20Of%20Single%20Phase%20Induction%20Motors.m4v?dl=0


Overview Single Phase Motors
https://www.dropbox.com/s/6eawpfhjr2qxqms/Overview%20Single%20Phase%20Motors-1.m4v?dl=0



Please note that most of these videos and training materials will cover most of the required QCTO curriculum requirements for Electricians.
It is very difficult to find specific detailed info on one topic only, for this reason, one clip might cover all the requirements.

Other good info
Physics - Principle of an Electric Motor - Physics


https://www.dropbox.com/s/tsqv21jiyqs07qq/Single%20Phase%20Motors.pdf?dl=0

TASKS AND PROJECTS


Build a simple motor


The First Electric Motor -DC


How To Build a Simple Electric Motor - DC


Build an Electric Motor - DC


How to Build a Homopolar Motor - DC


Homemade 12v AC Induction Motor Mechatronics project) - AC


Open induction motor -- Home made field coils - AC


Make an AC Induction Motor

How to Protect Motors from Running in Overload

How to Select and Use Contactor Overload Protectors

New generation of thermistor motor protection relays

Introduction to Overload Relays

Curriculum Requirements


  1. List the different types of alternating current motors and describe their construction


  2. Explain the principle of operation of alternating current motors


  3. Characteristics of single phase and three phase motors


  4. Describe and explain how tests are conducted on alternating current motors


  5. Describe with the aid of diagrams, the configuration of motor connections


  6. Describe and explain protection devices used for alternating current motors


  7. Explain how time delay and current rating of overload protection devices influence their use in protecting motors from damage in case of locked rotors, overload during operation and short circuits.


  8. Compare the advantages and disadvantages of single- and three-phase motors


  9. Calculate alternating current motor properties


Requirements to complete this topic or prerequisite


  1. Electrical fundamentals


  2. Basic Hand tools and power tools


  3. Principals of Single phase, Three phase and DC supplies


  4. Circuit protection - equipment


  5. Conductors - wire, ect.


  6. Electrical measuring instruments


  7. Drawing and sketches - engineering as well as basic electrical






QUESTIONS


Question and answer site
https://www.quora.com/topic/Induction-Motor


What are the uses of electric motors?
What is the use of AC motors?
What do we use induction motors for?
What are some things that use electric motors?
What are the different types of AC motors?
What is the difference between synchronous and asynchronous motors?
How does the motor work?
What is induction motor and how it works?
How can we control the speed of induction motor?
What is the AC series motor?
What is a split phase?
What are the five types of single phase motors used in the industry?
Which type of induction motor is used in ceiling fan?
Which type of motor is used in fans?
What is a split phase motor used for?

Please share if possible
Open and interactive


Electrical Shocks
https://www.wisc-online.com/learn/career-clusters/stem/iey1816/electrical-shocks


Treating Electrical Shock Victims
https://www.wisc-online.com/learn/career-clusters/health-science/iey1716/treating-electrical-shock-victims