Denny Substation: A Look Inside 1 2 8 3 7 4 6 5 Air ... · PDF file115 kV Gas Insulated...

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115 kV Inductors13.8 kV Capacitor115 kV Gas Insulated Switchgear230 kV Gas Insulated Switchgear15 kV Air Insulated Switchgear115 kV Gas Insulated Switchgear26 kV Air Insulated Switchgear26 kV Capacitor230 kV to 115 kV Oil Transformer115 kV to 26 kV Oil Transformer115 kV to 13.8 kV Oil Transformer

Transformers raise or lower the voltageas needed to serve the transmission circuits

Transformers raise or lower the voltageas needed to serve the transmission circuits

Inductors control andbalance electrical loads

Inductors control andbalance electrical loads

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Capacitors controland store voltage

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Switchgear helps regulateand protect electrical equipment

Gas Insulated Air Insulated

Switchgear helps regulateand protect electrical equipment

4 6 5Denny Substation: A Look InsideThe Denny Substation will serve a growing area of high-tech and bio-tech industries in South Lake Union, as well as other high-use customers across north downtown. The unique design features state-of-the-art electrical equipment and underground distribution and transmission lines to reduce their visual impact.

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South Lake Union Distribution LineDenny Triangle Distribution LineTransmission Line

LEGEND

DID YOU KNOW

?

This substation will provide enough

electricity to power two SeaTac Airports.

DID YOU KNOW

?

Most of the substation equipment will be

housed in enclosed structures.

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Garage Door

MIN

OR A

VEN

UE

YALE AVE

ALLEY

NORTH

JOHN ST

DENNY WAY

To Canal Street Substation

From Massachusetts

Street Substation

MaintenanceBuilding

To Broad Street Substation

David ColwellBuilding

The Brewster

Control Building

1

3

11

5

11

11

2

6

9

4

8

2

Pump House

From East Pine Substation

107

The substation will generate some of its

own electricity through solar power.

Capacitors controland store voltage