Every building, equipment, power plant, and substation facility in electricity require earth grounding, either directly or through a grounding system. The main objective of an earthing system in the electrical network is safety. An earthing system comprises different types of earth electrodes integrated with a typical network earthing system. The main purpose of earthing is to clear all earth or ground related faults in the electrical installation. This can be achieved by a good earth fault loop path with a low impedance value to guarantee that faults in the electrical path are cleared rapidly. If the faults stay inside the system for a long time, they can pose a severe threat to the system's stability.
Intelligent digital electronic relays are now incorporated to ensure personal safety. Earthing provides a low-impedance path in which current may flow under fault conditions. Exposed conductive parts are those conductive parts of equipment that may be touched and may become live in the case of a fault. The earthing connection prevents such live parts from reaching a hazardous voltage.
By the end of this Earthing Systems & Personal Safety training course, the participants will learn to:
- Acquire the need for earthing
- Understand the types of network earthing systems
- Describe the testing methods related to earthing
- Identify principles of earth fault protection
- Comprehend the earth faults for electrical equipment
This training course will discuss the topics using computer displays, videos and PowerPoint presentations. It is designed to have an interactive format to maximise delegates participation. Questions and answers are encouraged throughout and at the daily sessions.
A safe and secured electrical installation as dependent on the effectiveness of the earthing system.
The organisation will benefit from this Energy Training Centre training course on the following:
- Understand the importance of earthing
- Address the hazards and risks of personnel
- Competence in carrying out earthing measurements
- Incorporating protection relays for earth faults
- Comprehension of LV and MV earthing network characteristics
- Identify earth faults in electrical equipment
Upon completion of this Earthing Systems & Personal Safety training course, the participants will benefit as the following:
- Improved understanding of earthing systems
- Mitigation and personal safety related to earthing
- Develop skills to carry out earthing system measurements
- Gain a better perspective of network earthing systems
- Better apprehension of earthing protection
- Explain how to identify earth faults in electrical equipment
The technicians and maintenance staff will comprehend energy storage characteristics, types, performance, and merits. This will enable them to perform optimum maintenance.
This Energy Training Centre training course is suitable to a wide range of professionals but will greatly benefit:
- Electrical Engineers
- Maintenance Technicians
- Electrical Supervisors
- Engineering Professionals
- Project Engineers
DAY ONE: EARTHING SYSTEM ARCHITECTURE AND PERSONAL SAFETY
- Definition of an Earthing System
- Importance of Effective Earthing/Grounding
- Different Earthing Systems
- Safety issues related to earthing
- Insulation Faults and Electric Shock Hazards
- Touch and step voltage
DAY TWO: POWER SYSTEMS AND NETWORK EARTHING SYSTEMS
- The Earth Fault Loop Path
- TT, TNC, TNS, TNCS and IT Network Earthing Systems
- Earthing and Bonding Characteristics
- Sensitive earth fault and restricted earth fault
- Grounding Myths
- Clean Earth and Power Earth
DAY THREE: EARTHING TESTING AND MEASUREMENTS FOR LV AND MV
- Low Voltage Earthing System
- Medium Voltage Earthing System
- Earth Loop Impedance Tester
- Testing and Measuring Ground Rod Resistance
- Soil Resistivity Measurement
- Earthing Switches and Disconnectors
DAY FOUR: EARTH FAULT PROTECTION RELAYS AND APPLICATIONS
- Introduction to relevant Earthing Numerical Relays
- Understanding Earth Fault Current
- Earth fault and Earth Leakage Relays
- Lightning Protection Systems
- Surge Arresters
- Comparisons of Neutral Earthing Methods
DAY FIVE: COMMON ELECTRICAL EQUIPMENT GROUND/EARTH FAULTS
- Need for electrical equipment to be earthed
- Troubleshooting Motor Ground Faults
- Transformer Ground Fault Protection
- Typical Generator Ground Faults and Consequences
- Current Transformer Secondary Grounding