UNIVERSITY

University science laboratory distribution single line diagram

This university building single line diagram shows electrical distribution for a science laboratory. A 13.8 kV campus loop feeds a 2000 kVA transformer and 480Y/277 V laboratory switchboard. The normal bus supplies fume hood exhaust, a process chiller, and teaching laboratories. A 150 kVA UPS supplies a separate critical bus for analytical instruments.

UPDATED 2026-09-23
EXAMPLEUniversity science laboratory distribution single line diagram
Make this diagram your own.

Open it in the AI editor with a prompt pre-filled — keep what works, change what doesn't.

CASE ANALYSIS

Scenario

This campus laboratory distribution system separates high-demand mechanical loads and teaching loads from UPS-backed analytical instruments.

Key decisions

  • Campus connection: A 13.8 kV loop feeds a dedicated 2000 kVA laboratory transformer.
  • Mechanical ventilation: Fume hood exhaust has a separate 400 A motor feeder.
  • Process cooling: A 600 A feeder supplies the research chiller.
  • Research continuity: A 150 kVA UPS feeds the instrument critical bus.
  • Load separation: Teaching labs remain on a normal 300 A feeder.

When to reuse this

Use this for a research or teaching laboratory building. Hazardous-process controls, emergency power, and lab equipment loads require further study.

FAQ

Frequently asked questions

Why are analytical instruments on a UPS bus?01
Sensitive instruments may need ride-through power during brief utility disturbances.
Why is fume hood exhaust separate?02
It is a major safety-related mechanical load with its own feeder and controls.
Does the UPS power the chiller?03
No. The high-demand process chiller remains on the normal switchboard in this example.
Open this example in the editor →

Tweak it with chat, export PNG/SVG, or fork it for your own use case.