1. facilities where electrical voltage is transformed between high and low levels in a power distribution system
Usage: electrical engineering
2. subsidiary stations or offices that serve as local branches of a larger organization

Examples

• The power company built three new substations to serve the growing residential area.
• Electrical substations step down high-voltage power for safe household use.
• The fire department operates several substations throughout the city.
• Police substations help provide faster response times in remote neighborhoods.
• Workers performed routine maintenance on the electrical substations.
• The utility company’s substations are protected by high security fences.