Define the MV network view
A medium-voltage switchgear diagram normally identifies incoming sources, ring or radial feeders, transformer ways, breakers or switches, earthing, CT/VT and relay interfaces, and control or communication boundaries.
Review checklist
| Item | Planning question |
|---|---|
| Network topology | Is the normal and alternate supply path clear? |
| Feeder and transformer ways | Are cable, transformer, and load interfaces identified? |
| Protection and measurement | Are CT/VT, relays, trips, and alarms documented? |
| Earthing and interlocks | Are permitted operating states and maintenance boundaries clear? |
| Site and evidence | Do drawings, tests, and ratings match the actual assembly? |
Scope boundary
This is a diagram-reading guide, not an MV protection study or switching procedure. The project engineer must approve the final diagram and assembly.
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