Upon completion of this course the participant will be able to:

• Understand electrical power system equipments and components
• Learn Electrical Hazards and Safety Aspects
• Understand Fundamental Concepts of Earthing
• Learn specifications, construction, installation, testing and commissioning of earthing of electrical equipments as per standards and practices
• Understand and maintain the protection systems

Build the knowledge of diagnostic tests to assess the present condition of earthing.

Earthing of Electrical Equipments is a major component of the Power System. Safety of human beings and equipments is of utmost importance from social and economic perspective. It is necessary to know all aspects of earthing including design, location to selection of components, installation, commissioning and testing etc.
This is an introductory course to understand the technical aspects of the safety, and earthing of Electrical Equipments in Power Systems. A special emphasis on real life implementations, case studies and standards would ensure participants to co-relate the theory with their day to day practice.

Day 1:-
Structure of the Electric Power System
Power distribution system
Electric shock, its causes and effects
Direct and indirect contacts
Touch and step potential
Role of protective earthing in minimizing the shock hazards.
Equipotential bonding
Protective earthing conductors and installation.

Day 2:-
Earth fault protection
System classification based on system/protective grounding
Gas insulated sub stations
Bus configurations
Transformers
Circuit Breakers
Substation auxiliary systems

Day 3:-
Earthing practices
Basic design approach
Calculating the earth fault current
Earth potential rise in HV systems
Earthing design in LV and MV Substation / installations
Earthing grid design for HV / EHV Sub stations. Step by step approach
Introduction to two layer soil model
Transferred potential & ways of avoiding

Day 4:-
Insulation
Insulation protection
Clearances
Surge arrestors
Bus conductor
Electrical power bus
Rigid and hollow bus
Grounding, need for grounding
Personal safety
Hazardous potentials during faults
Ground grid
Earth resistivity
Soil and electrode

Day 5:-
Design Guidelines for earthing systems
Installation & Commissioning of earthing systems
Testing of Earthing Systems
Various test methods, routin and type tests and relevant standards
Real Life Case Studies
General discussions, Questions and Answers

Electrical and Mechanical/ Power engineers, Project Engineers, Maintenance Engineers and Supervisors and operating staff of electrical sub stations will find this course very useful for enhancing their knowledge related to earthing of electrical systems, components and its testing. The course will also definitely be beneficial for the all the other department people concerned with the plant operations, production, maintenance and safety. It could be also useful for the procurement and quality personnel.