As a Substation Engineer, you will need to master following:

• design electric power systems
• engineering processes
• inspect facility sites
• make electrical calculations
• mechanical engineering
• operate electronic measuring instruments

More generally, a substation engineer is also versed in:

• adjust engineering designs
• approve engineering design
• create AutoCAD drawings
• electric current
• electrical discharge
• electrical engineering
• electrical power safety regulations
• electricity consumption
• electricity principles
• engineering principles
• ensure compliance with environmental legislation
• ensure compliance with safety legislation
• ensure safety in electrical power operations
• manage engineering project
• mechanics
• perform project management
• perform scientific research
• technical drawings
• use technical drawing software

It also helps to know the following:

• develop electricity distribution schedule
• develop strategies for electricity contingencies
• manage electricity transmission system
• monitor electric generators
• respond to electrical power contingencies
• supervise electricity distribution operations
• CAD software
• adjust voltage
• assess financial viability
• electric generators
• electricity market
• ensure compliance with electricity distribution schedule
• inspect overhead power lines
• inspect underground power cables
• install circuit breakers
• maintain electrical equipment
• manage workflow processes
• test procedures in electricity transmission
• transmission towers
• wear appropriate protective gear