Facebook Twitter Instagram
    Trending
    • Testing of Circuit Breaker
    • Faults in Distribution Lines
    • Distribution System Overview
    • Transmission Towers
    • TRANSFORMER MAINTENANCE
    • OVERVIEW OF GENERATOR PROTECTION
    • TYPES OF EXCITATION SYSTEM
    • Functions and Performance Requirements of Excitation Systems
    Learn With Electric Know How
    • Home
    • Generation
      • Hydropower Station
      • Thermal Power Station
      • DISTRIBUTED ENERGY SOURCES
      • Diesel Generator
      • Industrial Tools
      • DC System-Generating Stations
    • Transmission
      • High Voltage DC Transmission
      • High Voltage AC Transmission
      • Three Phase Control Wiring
    • Distribution
      • Distribution System Overview
      • Faults in Distribution Lines
    • Protection
      • Power System Protection
        • Types of Fault in Power System
        • Circuit Breaker
      • OVERVIEW OF TRANSFORMER PROTECTION
        • Differential Protection of Transformer
      • OVERVIEW OF GENERATOR PROTECTION
      • Distance Protection
      • Electrical Safety
    • Switchgear
      • Electrical Sub-Station
        • BATTERY SYSTEM IN GRID SUBSTATION
        • Operation of Float Cum Boost Charger
        • Protection Circuitry of Battery Charger
        • Transformer
          • INSULATION RESISTANCE OF TRANSFORMER
          • WTI AND OTI in Power Transformer
          • Transformer Oil Dielectric strength
        • Sub-Station Operation
        • Multiplying Factor for Energy Meter
      • Current Transformer
      • Potential Transformer
      • Isolator in Substation
      • Electrical Busbar
      • Insulators
      • Clamps and Connectors
      • Fire Fighting System
      • Lightening Arrester
      • Gas Insulated Substation
        • Local Control Cubicle
        • SF6 circuit breaker gas compartment
    • Q&A
      • FAQS ON CT
      • POWER SYSTEM
      • FAQ ON BUSBAR
    Learn With Electric Know How
    Home»Switchgear»Electrical Busbar
    Switchgear

    Electrical Busbar

    madhusmitaBy madhusmitaNovember 25, 2022Updated:March 16, 2023No Comments3 Mins Read
    Facebook Twitter Pinterest LinkedIn Tumblr Email
    Share
    Facebook Twitter LinkedIn Pinterest Email

    This electrical Busbar training course introduces basic safe operational and field diagnostics of busbars with a focus on safe operation, testing, and maintenance of normally installed in substations.

    What is busbar in substation?

    • Busbar is a system where all incoming and outgoing feeders, lines, and transformers are connected through an isolator and breaker.
    • The selection of any busbar system depends upon
      • Amount of flexibility required in operation.
      • Immunity from the total shutdown.
      • The initial cost of the installation.
      • Load handled by the busbar.

    Different Configurations of bus-bar system

    • Single busbar
    • Main and Transfer Bus
    • Double Busbar.
    • Ring mains system

    SINGLE BUS-BAR

    Single Busbar

    Main and Transfer Bus

    With this arrangement, all the feeders are normally on the Main Bus Bar. If at any time, a Line Circuit  Breaker/ Transformer circuit breaker Maintenance is required or breakdown of a Circuit breaker or CTs, that particular feeder/ transformer, can be transferred onto the Transfer Bus. The feeder protection thus gets transferred to the trip Transfer Bus Coupler Breaker. On fault occurrence or maintenance, the entire bus becomes de-energized.

    Main and Transfer Bus

    Two main or Double Bus

    There are five types of Bus switching schemes double bus bars

    • Double busbar system.
    • Double bus with sectionaliser system.
    • Double bus & transfer bus system.
    • Double bus & transfer bus with sectionaliser system.
    • One & half breaker system

    Two main busbar system

    Ring Main Bus System

    The schematic diagram of the system is given in the figure. It provides a double feed to each feeder circuit, opening one breaker under maintenance or otherwise does not affect the supply to any feeder.

    major disadvantage

    One as it is a closed circuit system it is next to impossible to extend in the future and hence it is unsuitable for developing systems.

    Types of Bus Bar

    Rigid Busbar

     In the rigid type, pipes are used for bus bars and also for making connections among various equipment wherever required.Since the bus bars are rigid the clearances remain constant.Due to the large diameter of the pipes, the corona loss is also substantially less.

    strain type bus bars

    The strain-type bus bars are an overhead system of wires strung between two supporting structures and supported by strain-type insulators.

    The stringing tension may be limited to 500-900 kg depending upon the size of the conductor used. These types of busbars are suitable for earthquake-prone areas.

    Electrical safety clearances

    The various clearances need to be defined.

    • Phase-to-earth clearance.
    • Phase-to-phase clearance.
    • Sectional clearance.
    • Ground clearance.
    • Equipment to equipment spacing
    BUS BAR CONFIGURATIONS.pptx from MadhusmitaMohanty29

    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Previous ArticleSub-Station Operation
    Next Article Industrial Tools
    madhusmita
    • Website
    • Facebook
    • Instagram
    • LinkedIn

    Related Posts

    TRANSFORMER MAINTENANCE

    December 26, 2022

    On Load Tap Changing of Transformer

    November 25, 2022

    Transformer Oil Dielectric strength

    November 25, 2022

    Comments are closed.

    Recent Posts
    • Testing of Circuit Breaker
    • Faults in Distribution Lines
    • Distribution System Overview
    • Transmission Towers
    • TRANSFORMER MAINTENANCE
    Recent Comments
    • Faults in Distribution Lines - Learn With Electric Know How on Distribution System Overview
    • POWER SYSTEM - Learn With Electric Know How on Distribution System Overview
    • POWER SYSTEM - Learn With Electric Know How on Thermal Power Station
    • Basics of Power System Protection - Learn With Electric Know How on OVERVIEW OF GENERATOR PROTECTION
    • Functions and Performance Requirements of Excitation Systems - Learn With Electric Know How on TYPES OF EXCITATION SYSTEM
    Archives
    • March 2023
    • December 2022
    • November 2022
    Categories
    • Distribution
    • Generation
    • Protection
    • Q&A
    • Switchgear
    • Transmission
    • Uncategorized
    Meta
    • Register
    • Log in
    • Entries feed
    • Comments feed
    • WordPress.org

    Quick Links

    • Home
    • About Us
    • Contact Us

    Post Categories

    • Generation
    • Transmission
    • Distribution
    • Protection
    • Switchgear
    • Q&A

    Vip Link

    • Privacy Policy
    • Disclaimer
    • Terms and Conditions

    Contact Us

    • [email protected]
    Youtube Linkedin