SUBSTATION DESIGN, CONSTRUCTION AND MAINTENANCE

This course has been validated with 2CPD as per ECSA policy.

Accreditation No.: ICMEESA332-24

 

Transform your career with our specialized course on Substation Design, Construction, and Maintenance. This program is meticulously designed for professionals aiming to deepen their understanding and practical skills in substation engineering.

Course Overview:

• Substation Design Considerations: Explore the essential factors influencing substation design, from safety to operational efficiency.
• Physical Layout: Learn how to create effective physical layouts that optimize space and functionality.
• Equipment Selection: Gain insights into the selection and application of critical substation equipment to meet project requirements.
• Earthing System Design: Understand the design principles for robust earthing systems that ensure safety and compliance.
• Construction Techniques: Dive into the specifics of earthworks and structural foundations necessary for substation construction.
• 44/11 kV Substation Construction: Learn the intricacies of constructing a 44/11 kV substation, including the installation of 2 x 10 MVA transformers.
• Maintenance Program: Develop a comprehensive maintenance program to enhance the reliability and lifespan of substation assets.

Who Should Attend?

This course is perfect for electrical engineers, project managers, and technicians involved in substation design, construction, and maintenance. Equip yourself with the skills and knowledge required to excel in this vital field.

Join us to elevate your expertise and ensure successful substation projects that meet industry standards and safety requirements!

• Module 1: Introduction
  • Classification of sub-stations and purposes
  • Comparison between indoor and outdoor substations
  • Transformer substations, pole mounted substations, underground substations
  • Bus-bar arrangement in substations
  • Key diagram of 66/11 substation, 11kV/400 V substation

  Module 2 : Substation design considerations

  • Site selection
  • Environmental considerations
  • Safety considerations
  • Maintenance considerations

  Module 3 : Substation Physical layout

  • Layout considerations
  • Distribution substations
  • Transmission substations
  • Switching stations
  • Typical bus configurations
  • Protection of substation insulation
  • Electrical clearances
  • Bare conductors
  • Rigid bus design
  • Application of mobile transformers and substations

  Module 4 : Selection and application of Substation equipment  

  • Major substation equipment: Power transformer, power circuit breakers, Metal Clad switchgear, substation voltage regulators, shunt capacitor equipment, air switches, surge arresters, automatic circuit reclosers, instrument transformers, coupling capacitors and coupling capacitor voltage transformers, mobile units
  • indoor cellular substations, gas-insulated substations (GIS) and 22kV-132kV mobile substation skids for open-cast mining
  • Secondary Substation Equipment
  • Auxiliary Equipment and Systems
  • Protective Relaying and Control
  • Bill of materials (BOM) and Bill of quantities (BOQ)
  • Substation control and automation

  Module 5: Design of Substation grounding system

  • Differences in earthing design for various voltage levels (HV, MV & LV)
  • Earthing design flowchart
  • Grid Design Procedures and data requirements
  • Substation earthing system components
  • Common Substation earthing conductors
  • Preliminary Design
  • Main earth grid installation layout
  • Computation of Mesh Voltage, Step potential, Touch potential and Ground potential rise (GPR)
  • Equipment earthing
  • Yard surfacing
  • Fences
  • Use of Computer Analysis in Grid Design
  • 132/11 kV substation earthing practical design example
  • 132/33 kV substation earthing practical design example

Module 6: Substation construction – Earthworks and structural foundations

• Site clearance, excavation and earthworks
• General requirements applicable to all site clearance, excavation and earthworks
• Excavation
• Selected or imported fill
• Buildings
• Earthworks Inspection
• Structure foundations and assembly
• 132 kV Circuit breaker foundation
• 66 kV Circuit breaker foundation
• 66 /132 kV busbar tubular support foundation
• 132 kV Isolator support foundation
• NECRT support foundation

Module 7: Construction of 44/11 kV Substation, 2 x 10 MVA

• Establishing the Need for Substation Facilities
• Site Selection and Environmental Considerations
• Engineering Design
• Construction Process
• Environmental Impact Mitigation
• Protection, metering, dc, tele-communications & tele-control detailed designs
• Control Plant Design for 44/11 kV Substation
• 44/11 kV Transformer protection
• Supervisory control and data acquisition system or SCADA
• CONTROL ROOM
• LABELLING OF CONTROL PLANT PANELS, JB`S & CABLES
• CT Ratios for the Protection and Metering HV & MV CT`s
• Voltage Transformer requirements
• Transformer Cabling Diagram
• Cabling Requirements
• AC/DC DISTRIBUTION PANEL & YARD AC DISTRIBUTION BOARD

Module 8 Substation Maintenance Program

• Circuit Breaker Maintenance
• Dissolved Gas Analysis
• Oil Quality: Dielectric Strength, Acid, Interfacial Tension, Power Factor, Water
• Relay maintenance – Electro-mechanical relays only
• Relay functional testing – All relays
• Battery Maintenance - Capacity discharge testing, Intercell resistance, Specific gravity, Temperature, Electrolyte level
• Series Capacitor Bank, Maintenance
• Thermographic (infrared) Inspection
• Equipment Inspections
• Public Safety Inspections: Warning signs, Fence and gate integrity, Ground erosion, Vandalism, Vegetation, outside grading or other providing, potential access
• Doble Testing: Overall tests, Bushing tests, Hi-collar tests, Oil tests, Surge arrester tests, SFRA and LR testing