MODULE 7 — Substations
7.1 Typical Substation Layout
7.2 Busbar Arrangements
- Single Busbar: Cheapest, low reliability. Maintenance requires shutting down.
- Single Bus + Sectionalization: Isolates faults to one section.
- Main & Transfer Bus: Allows breaker maintenance without outage.
- Double Bus Double Breaker: Highest reliability, most expensive.