Electrical Fault-Finding Techniques in Electrical Networks
Electrical faults in networks can cause costly downtime, equipment damage, safety hazards, and production losses.
- Online – Microsoft Teams
- 16 – 17 July 2026
- 2 CPD Points
- Price : R 8 999.00
LEARNING OUTCOMES
After successfully completing this course, you will be able to:
Understand common fault types in electrical networks and their root causes
Apply structured fault-finding procedures for rapid diagnosis
Detect open circuits, short circuits, earth faults, overloads, and insulation failures
Diagnose faults in motors, transformers, switchgear, relays, and control circuits
Troubleshoot power quality issues such as harmonics, voltage dips, and imbalance
Identify intermittent and hidden faults in complex electrical systems
Fundamentals of Electrical Faults in Networks
- Types of electrical faults in AC/DC systems
- Symmetrical and unsymmetrical faults
- Phase-to-phase faults
- Earth faults and leakage currents
- Overload and overcurrent conditions
- Transient vs permanent faults
Principles of Electrical Fault Diagnosis
- Gate valves
- Globe valves
- Ball valves
- Butterfly valves
- Check valves
- Plug valves
- Control valves
- Safety relief valves
Electrical Drawings and Diagnostic Interpretation
- Reading circuit diagrams
- Single-line diagrams and panel schematics
- Wiring identification methods
- Cable routing interpretation
- Protection coordination diagrams
Test Instruments for Fault Detection
- Digital multimeters
- Clamp meters
- Insulation resistance testers (Megger)
- Earth resistance testers
- Oscilloscopes and power analyzers
- Thermal imaging cameras
- Cable fault locators and TDR testing
Fault-Finding in Distribution Networks
- LV and MV distribution system faults
- Fault location in feeders and branch circuits
- Busbar fault diagnosis
- Switchboard fault investigation
- Voltage drop and imbalance troubleshooting
Motor and Drive Fault Diagnosis
- Single-phase and three-phase motor faults
- Winding insulation failures
- Rotor and stator defects
- VFD and soft starter fault codes
- Overheating and overload diagnosis
Transformer and Switchgear Fault Analysis
- Transformer winding and insulation faults
- Oil and dry transformer fault symptoms
- Circuit breaker failure analysis
- Relay trip investigation
- Fuse discrimination and failure patterns
Protection Relay and Control Circuit Troubleshooting
- Relay trip logs interpretation
- Protection coordination fault review
- PLC-controlled electrical fault tracing
- Interlocking circuit diagnostics
- SCADA alarm fault interpretation
Power Quality and Hidden Fault Detection
- Harmonic distortion diagnosis
- Voltage sag, swell, and flicker analysis
- Neutral current issues
- Ground loop detection
- Intermittent fault identification methods
Preventive Maintenance and Fault Prevention Strategies
- Predictive maintenance techniques
- Infrared thermography inspections
- Insulation trending analysis
- Network health audits
- Preventing recurring electrical failures