The scenario
A commercial building HVAC system requires three 5 HP blowers supplied from a 480V utility. The single line diagram shows main switchboard and dedicated branch circuits.
What is in this drawing
Read the decisions behind it.
01
Selection of main breaker rating
02
Individual branch circuit protection per blower
03
Use of 480V utility without step-down transformer
When designing electrical distribution for motor loads in commercial HVAC systems.
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