COURSE NAME:Electrical Distribution Systems


This course can be scheduled at your convenience, to request this course please click here
  • This course is designed to provide the participants with practical knowledge about the electrical distribution system including the electrical elements of power system such as, transformation, transmission and distribution. The distribution system elements such as transformer, transmission lines and distribution feeders are presented. The protection, control and monitoring devices are also presented. Also a practical two study case to designee a distribution panels for normal loads and motors group.

General Introduction


  • Power plants
  • Turbines
  •  Generators
  • Transformers
  • Transmission lines
  • Distribution lines
  • Voltage level and standard
  • Frequency standard
  • Generator layout
  • Transmission layout
  • Distribution layout

Distribution Transformers Construction and Installation

  • Use of the transformer.
  • Theory of the power transformer.
  • Single phase transformers
  • Three phase transformers
  •  Transformers Construction
  • Constructional parts.
  • Core construction.
  • Windings.
  • Insulation.
  • Leads and terminals.
  • Bushings.


Distribution Transformer Types, Cooling and Maintenance

  • Connections for transformers.
  • Auto-transformers.
  • Voltage regulation and tap-changing.
  •  Transformers Cooling
  • Natural air cooling.
  • Forced air cooling.
  • Natural oil cooling.
  • Forced oil cooling.
  • Internal cooling .
  • Tanks.
  • Transformer oil
  • Transformer maintenance.


Distribution Feeders and Cables System

  • Construction
  • Conductors
  • Towers
  • System Operation
  • Operation Components
  • Control Function
  • Economic Generation Allocation
  • Control Methods
  • Supervisory Control and Data Acquisition
  • System Security
  • System stability


Distribution System Layout

  • Introduction.             
  • Three phase review and per unit,
  • Voltage levels,
  • One line and three line diagram,
  • Transmission layout,
  • Distribution layout,
  • Substation layout,
  • Grounding of power systems.
  • Lightning Arresters
  • Capacitors


LV & MV Distribution System Layouts

  • Redial distribution system layout
  • Loopdistribution system layout
  • Range main system
  • Bus configuration
  • Single bus single breaker
  • Transfer bus
  • Double bus double breakers
  • Range main bus
  • Circuit breaker and half


Distribution Panels LV and MV Switchgears

  • Fuses
  • Auto-reclosers
  • Automatic sectionalizer
  • Circuit Breakers
  • Isolator switches
  • Load switches
  • Current transformers
  • Voltage transformers


Distribution Panels Measurements and Instrumentation

  • Introduction
  • General characteristics
  • Digital transducer technology
  • Analogue transducer technology
  • Transducer selection
  • Measurement centers
  • Tariff metering
  • Synchronisers
  • Disturbance recorders


Load Types, Load Calculations & Distribution Panels Design

  • Residential Loads
  • Commercial Loads
  • Power Factor Correction
  • Utility Factor
  • Losses in Lines
  • Distribution board design
  • Distribution board fro load less than 1MVA
  • Distribution board fro load greater  than 1MVA
  • Cables selection
  • Circuit breakers selection
  • Load balance calculation


Design of Distribution Board of Group of Motors

  • For outgoings
  • Motor cable cross section selection
  • Motor CB selection
  • Main cable cross section selection
  • Main CB capacity selection
  • Methods of calculating starting currentDistribution Panels System Protection
  • Philosophy of system protection
  • Role of protection
  • Abnormalities to be protected against
  • Basic terms used in protection
  • Backup protection
  • System earthing
  • Relays
  • Relay types
  • Thermal relays
  • Electromagnetic relays
  • Static relays
  • Digital relays
  • Feeders and cables protection
  • Distribution transform protection
  • Application
WHO SHOULD ATTEND: Who Should Attend? • Electrical engineers and technicians whom concerning with electrical distribution systems including those working in the manegments, protection, control, maintenance and operation
    • 5 Day(s)

    The presentation is generally appealing to me. The dedication & devotion of the instructor are both laudable & admirable.
    Mohammed F. Alotaibi

    Really this course is important for any inspector, so I will recommended it for our employees. And thanks a lot!
    Ahmed Al-Yami

    You are doing excellent bringing such very talented instructor. Please keep it up.
    Ahmed Afifi
    Al-Zamil CoolCare

    I would like to appreciate you as well as the instructor for a good training due to the fact that the helping to gain new information about the types of valve with advantages and disadvantage as well. Many thinking.
    Zaki Ali Aldawood

    This course was very beneficial and helpful to understand one of the Major NDT method. I encourage ITC to continue with this performance.
    Talal Saad AlHasawi

    ITC service was in overall excellent. Thanks.
    Wael M. Morsy

    This course was good and a nice guide to the PMP exam. Thanks.
    Yazeed Mohamed Mreki
    General Authority of Civil Aviation (GACA)

    It was good course & good preparation with excellent instructor. Thanks a lot.
    Faisal Mahdi Al-Qahtani

    It was a nice course to have. I suggest taking this course with the same instructor to other people. Thanks for the instructor for his kindness & helfull during the course.
    Abdul-Moniem Al-Humoud

    It is very important course, which enable us to improve our knowledge to work approaching our big account and can be recall us the key account. This is will support us to active result for the best of the Co.
    Mohammed Amjad
    Al-Suwadi Services

    The instructor is highly and technical knowledgeable in explaining all the subject in the course taken.
    Noel V. Garan
    Coldstorec Group Of Saudi Arabia

    Instructor was well prepared and knowledgeable I gain lot of useful information.
    Gulam Khan
    Saudi Aramco

    It was a good learning experience. Got to know the concept involved in key account.
    Muthuraman Nachiappan
    Al-Suwadi Services

    The instructor Mr. Ahmed Sabry has a very nice spirit.
    Salam Fakhoury
    Al Khodari Company

    It is very useful to us and increase our knowledge.
    Mohammed Rashed Afifi
    Al Khodari Company

    The course is excellent and helpful. It help me in organizing the work in more safe manner.
    Muzammil Hayat
    Al Khodari Company

    The instructor is very knowledge and hard working, his way of teaching is very good.
    Ibrahim Darwish
    Al Khodari Company