• 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]
Login
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

    Basic Electrical

    Why Three Phase System Preferred Over Higher Phases?

    • Categories Basic Electrical, Electrical Machines, Generation, Power System, Substation
    Electrical Engineering

    A three-phase system is universally employed for a generation, transmission, and distribution of electric power. There are several reasons for why three-phase systems are more commonly used over higher phase (four-phase or six-phase) systems. Simply we can say that a three-phase system is more efficient over other phase systems.

    Electrical EngineeringThe Increase in efficiency means an increase in the output power of a machine. The power output of the machine increases with increasing the number of phases of the system. So the output power of two-phase is more than that of the single-phase system. Three-phase power output is much higher than two-phase. Also power output of four-phase and higher than previous ones.

    Now one question comes to our mind ‘Why the three-phase system is used over more efficient four or five-phase systems?’. 

    The reason for choosing three-phase is dependent on the percentage of increase in output power on increasing the number of phases. 

    • If a two-phase system is employed in a machine the output of the machine increase by 41.4% over the single-phase system.
    • If a three-phase system is used, a 50% increase is observed in the output of the machine.
    • If the number of phases in increased from three to a large number, the increase in output is only 7%. And it will cause complications.
    • Considering the power output, the three-phase system is more economical over higher phase systems.
    • Two-phase supply and six-phase supply, when required, is obtained from 3 phase supply.

    Hence, three-phase systems are most commonly used over higher phase systems.

    Related Articles

    • 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…

    • Three Phase Transformer Connections
      Three Phase Transformer Interconnections

      The phase windings of three-phase transformers are interconnected to give a three-phase, three-or four-wire supply…

    • Construction of Three Phase Induction Motor
      Three Phase Induction Motors - Construction

      A three phase induction motor has two main parts stator  rotor. The rotor is separated…

    • star star transformer
      Star-Star (Y-Y) Connection of Three Phase Transformers

      There are different types of connection employed for three-phase transformers. The star-star (Y-Y) connection of three-phase transformers…

    • working of three phase induction motor
      Three Phase Induction Motor: Construction and Working Principle

      The three-phase induction motors are the most widely used electric motors in the industry. They…

    • Three wattmeter method of measuring three phase power
      Measurement of Three Phase Power | Wattmeter Methods

      This article explains the measurement of three-phase power in star connected or delta connecter load…

    • Share:
    author avatar
    Electrical Engineer

    Previous post

    Capacitor Voltage Transformer (CVT or CCVT) - Construction & Working
    April 13, 2014

    Next post

    How Diesel Locomotives (Diesel Trains) Work?
    May 1, 2014

    You may also like

    Transformer testing at factory
    Percentage Reactance in Power System (Transformer, Generator or Reactor)
    16 January, 2023
    Thin film application iin electronics
    The Various Applications Of Thin Films In Electronics And Other Equipment
    16 January, 2023
    Thin film resistors
    Applications & Functions of Thin Film Resistors
    12 January, 2023

    Leave A Reply Cancel reply

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

    Search Here

    From Blog

    BELTED 2BCABLES
    Types of Underground Cables
    11Dec2018
    Current Transformer construction
    Current Transformers – Windings and Rated Insulation Levels
    30Jun2014
    Generator on Load
    DC Generator Problems and Solution: EMF Equation of DC Generator
    27Sep2022
    Breaker failure relay
    Breaker Failure Relay (Back-up Protection Relay)
    16Jul2015

    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?