Le scénario
A substation needs a 120V DC auxiliary power single-line diagram showing a station battery bank, two battery chargers, a common DC distribution bus, and separately protected feeders for protection relays, SCADA, and control circuits.
Ce que contient ce dessin
Comprenez les décisions qui le sous-tendent.
01
Represent battery chargers as DC source nodes feeding the 120V DC bus through dedicated output breakers
02
Connect the station battery to the same bus through a battery breaker so chargers and battery share the distribution panel
03
Protect each protection-relay and control feeder with an individual breaker to isolate faults without losing the whole DC bus
Use for substation DC auxiliary system design, relay panel power distribution, or as-built documentation of a 120V DC station service panel.