Managing Risk, Safety, and Performance in High and Medium Voltage Substation Systems

By the end of this course, you will be able to:

• Analyze substation performance and power quality issues to improve system reliability and operational efficiency
• Evaluate high‑ and medium‑voltage substation components to identify technical risks and performance limitations
• Design and assess substation grounding systems that meet safety, stability, and regulatory requirements
• Select and apply appropriate overcurrent and overvoltage protection strategies for HV/MV installations
• Plan and manage testing, commissioning, and maintenance activities to support long‑term asset integrity

Description

Designing, operating, and maintaining high‑ and medium‑voltage substations requires more than technical knowledge—it demands sound engineering judgment in environments shaped by safety risk, regulatory requirements, and system reliability expectations. Decisions related to equipment selection, grounding, protection, and maintenance directly impact operational continuity and public safety.

This course focuses on the practical considerations engineers and technical professionals face when working with HV/MV substations. You will examine how switching equipment, transformers, reactors, grounding systems, and protection schemes function together within a substation, and how design and operational decisions influence system performance. Emphasis is placed on applying regulatory requirements, performing fault calculations, and integrating modern protection, control, and communication systems.

Through a structured, application‑focused approach, this course equips you with the tools and frameworks needed to make informed design, testing, and maintenance decisions. You will leave better prepared to manage substation systems confidently, reduce risk, and support reliable power delivery in real‑world operating environments.

Who Should Attend:

This course is designed for:

• Electrical and substation engineers involved in HV/MV design, testing, or maintenance
• Engineers and engineering technologists responsible for commissioning, operation, or asset management
• Consulting and field engineers supporting utility or industrial substation systems
• Managers and team leads overseeing substation projects or operational performance
• Safety, Compliance, and Project professionals requiring practical understanding of HV/MV substation systems

Day I

Industrial and Utility Substation

• Substation hardware
• Substation layout considerations
• Bus arrangements and bus design considerations

General Design Considerations

• Site selection and environment considerations
• Industrial and utility substations
• Safety, operating and maintenance considerations
• Typical single-line diagrams

Fault Calculations

• Types of faults
• Symmetrical components
• Fault calculations

Application of Circuit Breakers

• Types of circuit breakers
• Classification of circuit breakers
• Breaker selection and ratings

• The ANSI C37 Standard and Guide
• Transient recovery voltage
• Out-of-phase switching
• Generator breakers

Open Forum - Questions and Answers

Day II

Substation Equipment

• Disconnect switch and circuit breakers
• Power transformers and reactors
• Instrument transformers, voltage and current
• Power and control cables
• Station battery

Insulation Co-Ordination

• Classification of over-voltages
• Surge arresters and choice of arrester rating
• Standard insulation levels
• The concept of protective levels and protective margins
• Protective margins in insulation coordination

Harmonics in Utility and Industrial Systems

• Sources of harmonics
• The IEEE Std 519 on harmonics
• Harmonic analysis, filters
• Problems associated with variable frequency drives

Grounding Design Considerations

• The objectives of station grounding
• Safety considerations
• Step and touch voltages, ground potential rise
• Treatment of fence
• An example of substation grounding

Day III

GIS Application

• Review of GIS technology
• Layout and bus arrangement
• Handling of SF6 Gas
• Economics

Shunt Capacitor Application

• Capacitor arrangements and bank ratings
• Capacitor and bank protection
• Harmonic resonance caused by shunt capacitors

Protection Metering and Control

• Review of relay applications, industrial and utility systems
• Transmission line protection
• Bus protection
• Transformer protection
• Medium voltage feeder protection

• Measurements
• Integration and automation

Maintenance and Testing

• Maintenance and testing of substation equipment

Open Forum - Questions and Answers