• Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Blog
  • Contact
    • Contact Us
    • Privacy Policy
Have any question?
[email protected]
RegisterLogin
StudyElectrical.Com
  • Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Blog
  • Contact
    • Contact Us
    • Privacy Policy

    Single Phase Motors

    AC Single Phase Motors

    • Categories Single Phase Motors, Electrical Machines
    single phase ac motors

    Single phase motors are the most familiar of all electric motors because they are extensively used in home appliances, shops, offices etc. It is true that single phase motors are less efficient substitute for 3-phase motors but 3-phase power is normally not available except in large commercial and industrial establishments. 

    Since electric power was originally generated and distributed for lighting only, millions of homes were given single-phase supply. This led to the development of single-phase motors. Even where 3-phase mains are present, the single phase supply may be obtained by using one of the three lines and the neutral. Here, we shall focus our attention on the construction, working and characteristics of commonly used single-phase motors.

    Types of Single Phase AC Motors

    Single-phase motors are generally built in the fractional-horsepower range and may be classified into the following  types:

    Induction Type Motors 

    1. Split Phase Induction Motor
      1. Resistance Start Induction Motor
      2. Capacitor Start Induction Motor
      3. Capacitor Start, Capacitor Run
      4. Permanent Capacitor 
    2. Shaded Pole Induction Motor
    3. Repulsion Start Induction Motor
    Commutator Motors
    1. AC Series Motor
    2. Universal Motor
    3. Repulsion Type Motors
      1. Repulsion Start Induction Run
      2. Repulsion Induction Motor
    Synchronous Motors
    1. Reluctance Motor
    2. Hysteresis Motor
    njm
    Types of AC Single Phase Motors

    Single Phase and Three Phase Motors – Comparison

    A brief comparison between three-phase and single phase motors are given below.
    1. Single-phase induction motors are simple in construction, reliable and economical for small power rating as compared to three-phase induction motors.
    2. The electrical power factor of single-phase induction motors is low as compared to three-phase induction motors.
    3. For same size, the single-phase induction motors develop about 50% of the output as that of three-phase induction motors.
    4. The starting torque is also low for asynchronous motors.
    5. The efficiency of single-phase induction motors is less as compared to the three-phase induction motors.

    Related Articles

    • electrical-Interview-Questions
      Objective Questions on Single Phase Motors | Part 3

      31. The type of starting relay used on single phase hermetic motor is (A) hot…

    • MCQ
      Objective Questions on Single Phase Motors | Part 1

      Part 1Part 2Part 3Part 4Part 5 1. A capacitor start single phase induction motor will…

    • universal motor construction
      Construction of Universal Motors

      A universal motor is one of the single-phase motors that can be operated on either…

    • MCQ
      Objective Questions on Single Phase Motors | Part 2

        Part 1Part 2Part 3Part 4Part 5 16. Single phase motors are commercially manufactured up…

    • electrical-Interview-Questions
      Objective Questions on Single Phase Motors | Part 4

      46. The short coming of repulsion motor is (A) variation of speed with load (B)…

    • Transformer working video
      Video: How Single Phase and Three Phase Transformer Works?

      In today’s post, we will go through a video that explains the working of single phase and three phase transformers in detail.  We have already discussed the working principle of a transformer and Why…

    • Share:
    author avatar
    Electrical Engineer

    Previous post

    Production of Rotating Magnetic Field
    February 8, 2014

    Next post

    Steam Power Stations - Arrangement and Working
    March 19, 2014

    You may also like

    transformer-winding
    Transformer Windings: Types and Design
    22 November, 2022
    Photo by Sven Daniel on Unsplash
    What is CNC Machining? | Definition, Processes, Components & More
    3 November, 2022
    Generator on Load
    DC Generator Problems and Solution: EMF Equation of DC Generator
    27 September, 2022

    Leave A Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Search Here

    From Blog

    how stepper motor works
    Video: How Stepper Motor Works?
    28Feb2017
    Electrician Jobs
    Electrician Careers: 8 Specializations To Consider
    01Nov2021
    capacitor charging and discharging
    Charging and Discharging a Capacitor
    29Feb2020
    DC Shunt Generator Characteristics
    Characteristics of DC Shunt Generator
    12Aug2014

    Categories

    • Alternator
    • Arduino
    • Basic Electrical
    • Battery
    • Books
    • Cables
    • Capacitor
    • Career
    • Circuit Breaker
    • Control System
    • DC Generator
    • DC Generator MCQ
    • DC Generator Solved Problems
    • DC Motor
    • DC Motor MCQ
    • Drives
    • Electric Vehicles
    • Electrical Circuits
    • Electrical Machines
    • Electrical Relays
    • Electrical Safety
    • Electronics
    • Embedded System
    • Exams
    • Generation
    • Guest Post
    • HVDC
    • Instrumentation
    • Interview Questions
    • Locomotives
    • MCQ
    • Measurement
    • Microcontroller
    • Objective Questions
    • PCB
    • PLC
    • Power System
    • Problems and Solution
    • Projects
    • Resistor
    • Signals and Systems
    • Single Phase Motors
    • Substation
    • Switchgear
    • Synchronous Motor
    • Three Phase Induction Motor
    • Transformer
    • Transmission Line
    • Uncategorized

    Copyright © 2021 Study Electrical, Inc.

    © StudyElectrical.Com 2021

    Login with your site account

    Lost your password?

    Not a member yet? Register now

    Register a new account

    Are you a member? Login now