Substation & Switchgear Bus Configuration Explorer
Compare Single Bus, Double-Ended, Sectionalized, and Alternate Source topologies under normal operation and fault conditions — evaluate reliability metrics, model transfer types, and walk through six sequenced operations scenarios.
Overview
Substation and switchgear bus configuration is one of the foundational design decisions in power distribution — the choice between single bus, double-ended, sectionalized, and alternate source directly determines reliability, maintenance flexibility, and cost. Yet the trade-offs are rarely taught in a way that lets learners drive the system. This explorer puts all four topologies in your hands: configure source capacities, load demand level, and breaker states, then watch the live bus diagram, load flow, and reliability metrics update. The Operations tab executes six sequenced scenarios — Source A Trip, Planned Outage on Section A, Parallel Sources Warning, Total Blackout Recovery, Sectionalizer Operation, and Alternate Source Transfer — with step-by-step event narration. The Analytics tab shows load split, source utilization, and contingency margin. The Reliability tab compares availability, SAIDI impact, and maintenance flexibility across topologies. The Design tab models transfer strategy (Manual Open Transition, Automatic Open Transition, Automatic Closed Transition, Static Transfer/UPS) and maps them to five occupancy types: Hospital Essential Electrical System, Data Center Zero-Blink, Industrial Plant Cost-Optimized, Warehouse Basic Service, and University Campus Maintenance Flexibility. A Scenario tab provides structured problem-solving exercises with evaluated results. The Learn tab covers bus topology theory, reliability concepts, and transfer timing.
App preview
A live look at the app you'll launch — every control on the left drives the visualizations on the right in real time.
Inside the lab
What you'll do
- 01Describe the key differences between single bus, double-ended, sectionalized bus, and alternate source configurations in terms of redundancy and switching flexibility
- 02Predict the load impact of a source trip on each topology and identify which configurations provide automatic restoration
- 03Explain the difference between open-transition and closed-transition transfer and identify which load types require closed-transition or static transfer
- 04Evaluate bus configuration reliability using SAIDI impact and N-1 contingency metrics
- 05Step through a planned outage procedure on a sectionalized bus and verify load continuity at each step
- 06Select a bus topology and transfer strategy for a hospital essential electrical system, data center, and industrial plant based on reliability and cost requirements
Who it's for
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