Distribution Network Engineering Course

Lesson 1 • Distribution Network Topologies

Covers radial, ring, and meshed configurations with their trade-offs. Connects topology choice to reliability, cost, and operational flexibility.

Lesson 2 • Power System Overview and Hierarchy

Maps the full power system from generation through transmission to distribution. Establishes the context for all downstream distribution engineering decisions.

Lesson 3 • Electrical Fundamentals for Distribution

Reviews Ohm's law, power factor, and three-phase theory as applied to distribution circuits. Ensures all students share the quantitative baseline required for load and fault analysis.

Lesson 1 • Demand Measurement and Metering

Explains how energy meters, interval data, and smart meters capture demand. Accurate measurement is the data foundation for all forecasting and billing processes.

Lesson 2 • Demand-Side Factors and Distributed Resources

Accounts for energy efficiency, demand response, and distributed generation in load projections. Modern forecasts must integrate these factors to avoid over- or under-investment.

Lesson 3 • Load Forecasting Methods

Presents trend extrapolation, regression, and simulation-based forecasting techniques. Connects forecast accuracy to investment timing and network adequacy decisions.

Lesson 1 • Voltage Profile Assessment

Analyses voltage magnitude along feeders under varying load conditions. Identifies locations prone to under-voltage or over-voltage and links them to equipment limits.

Lesson 2 • Power Flow Calculation Methods

Covers backward-forward sweep and Newton-Raphson methods for radial and meshed networks. Provides the computational tools needed to evaluate feeder operating conditions.

Lesson 3 • Software Tools for Power Flow

Introduces industry-standard simulation platforms used for distribution power flow studies. Builds practical competency in model setup, scenario runs, and results interpretation.

Lesson 4 • Voltage Regulation Equipment

Explains step voltage regulators, load tap changers, and capacitor banks as regulation tools. Connects equipment selection to voltage profile improvement outcomes.

Lesson 1 • Fault Current Calculation Procedures

Walks through systematic fault current computation at key network buses. Accurate fault levels are required for equipment rating and protection coordination.

Lesson 2 • Fault Types and Mechanisms

Classifies three-phase, line-to-line, and single line-to-ground faults by cause and frequency. Understanding fault types is prerequisite to selecting appropriate protection strategies.

Lesson 3 • Symmetrical Component Analysis

Applies positive, negative, and zero sequence networks to unbalanced fault calculations. Symmetrical components are the standard analytical framework for asymmetrical fault studies.

Lesson 1 • Protection Coordination Methodology

Applies time-current curve overlay and coordination margin rules to achieve selectivity. Proper coordination ensures only the device nearest the fault operates first.

Lesson 2 • Protection Philosophy and Objectives

Defines speed, selectivity, sensitivity, and reliability as the four protection objectives. Establishes the design criteria that guide all subsequent device selection and setting decisions.

Lesson 3 • Overcurrent Protection Devices

Covers fuses, reclosers, and overcurrent relays as the primary distribution protection tools. Explains operating characteristics and application rules for each device type.

Lesson 4 • Protection for Distributed Generation

Adapts traditional protection schemes to handle bidirectional fault current from embedded generators. Addresses anti-islanding, reverse power, and loss-of-mains detection requirements.

Lesson 1 • Cost-Benefit Analysis for Network Investment

Applies net present value, levelised cost, and risk-adjusted analysis to investment options. Quantitative economic evaluation supports transparent and auditable investment decisions.

Lesson 2 • Reinforcement and Alternative Options

Evaluates conductor uprating, new feeders, substations, and non-network solutions side by side. A structured options appraisal ensures the most cost-effective solution is selected.

Lesson 3 • Planning Criteria and Standards

Defines N-1 and N-2 security criteria, loading limits, and voltage standards used in planning. Criteria translate regulatory and business requirements into quantitative engineering constraints.

Lesson 4 • Long-Range Network Development Plans

Structures multi-year capital programmes with phased investment and trigger-based decision points. Long-range plans align engineering outputs with organisational budgeting and regulatory reporting.

Lesson 1 • Reliability-Centred Maintenance

Applies failure mode analysis and condition-based triggers to maintenance scheduling. Shifts maintenance from time-based to risk-based to maximise reliability per maintenance rand.

Lesson 2 • Reliability Improvement Programme Design

Structures targeted programmes addressing vegetation, equipment age, and feeder configuration. Prioritises interventions by cost per unit of reliability improvement achieved.

Lesson 3 • Outage Data Collection and Analysis

Covers outage management systems, cause coding, and statistical analysis of interruption records. Quality outage data is essential for identifying the highest-impact reliability improvement opportunities.

Lesson 4 • Network Automation for Reliability

Explains fault location, isolation, and service restoration automation as reliability tools. Automation reduces customer interruption duration without requiring physical crew dispatch.

Lesson 1 • Hosting Capacity Assessment

Quantifies the maximum distributed generation a feeder can absorb without violating technical limits. Hosting capacity analysis guides interconnection screening and network upgrade decisions.

Lesson 2 • Distributed Energy Resource Technologies

Surveys photovoltaic, wind, battery storage, and combined heat and power as distribution-connected resources. Technology characteristics determine the specific grid integration challenges each resource presents.

Lesson 3 • Voltage and Power Quality Management

Addresses voltage rise, flicker, harmonics, and unbalance introduced by distributed resources. Mitigation measures maintain power quality within acceptable limits for all customers.

Lesson 4 • Interconnection Study Process

Walks through screening, impact, and facilities study stages for distributed resource applications. A structured study process ensures safe and compliant grid connection of new resources.