What will I learn from this course?

• Design a high voltage electrical installation
• Estimate the value of the short-circuit currents
• Select the electric equipment and cables
• Improve the dialogue with people operating on site

Topics

Steps of the design of an installation

• Standards according to the country: NFC 13-100 and NFC 13-200 (France), CIE (international), Electricity code of Quebec, etc…
• List of equipment
• Selection of the structure
• Flow line diagram
• Selection of the neutral systems: isolated neutral, earth neutral

Voltage and current transformers 

Characteristics of the equipment 

Characteristics of the sources

• Grids, transformers, groups

Selection of the electric cables

• Dimensioning criteria

Selection of the equipment

• Disconnectors, switches, contactors, fuses, circuit breakers

Reminders of the short circuit current estimation

• The source is a transformer
• The source is a generator group

Neutral systems in industrial grids

• Study of the “isolated neutral” and "neutral Earthing resistors" systems

Reminders of the industrial grids protection

• “phases” default protection plan
• Earth” default protection plan

Reminders of the protection of distribution transformers 

Case study

• Design of one part of a plant: selection of the equipment, comparison of the different solutions

Learning path