“Draw a feeder distribution single line diagram for a retail center with a 12.47 kV utility service, 2000 kVA transformer, 3000 A main bus, metered grocery and restaurant tenant feeders, central HVAC, and parking signage loads.”
看懂背後的決策。
A 2000 kVA transformer feeds the 480Y/277 V retail bus.
Grocery and restaurant feeders have individual demand meters.
A central 600 A feeder supplies rooftop HVAC equipment.
Parking and signage are isolated on their own feeder.
Use this for a small retail center with common-area services and tenant billing. Utility meter location and tenant-service requirements vary by jurisdiction.
常見問題
Why are tenant demand meters shown?
They make separate tenant energy measurement visible in the distribution topology.
Are tenant meters always installed after the main bus?
The required metering arrangement depends on the utility, lease structure, and local code.
Why is HVAC separate from tenant loads?
Central plant equipment is commonly a shared landlord service rather than a tenant branch.