Unit Substation

Definition

A unit substation is a freestanding assembly that includes a transformer, switchgear, and meters, used to distribute electrical power.

Purpose

Unit substations are essential components of electrical distribution systems, converting high-voltage electricity from transmission lines to lower voltages suitable for use in buildings and facilities. They provide a centralized point for managing and distributing electrical power efficiently.

Examples of Use

• Commercial Buildings: Installing unit substations to manage electrical distribution in large office buildings.
• Industrial Facilities: Using unit substations to distribute power to machinery and equipment in factories.
• Hospitals: Ensuring reliable and safe electrical distribution in healthcare facilities with unit substations.

Related Terms

• Transformer: A device that changes the voltage of electrical power.
• Switchgear: Electrical equipment used to control, protect, and isolate electrical circuits.
• Circuit Breaker: A device that interrupts the flow of electricity in an electrical circuit as a safety measure.

Notes

Unit substations are critical for ensuring the safe and efficient distribution of electricity. They must be properly maintained and periodically inspected to ensure their reliability and safety.