Owner: Los Angeles World Airports / Los Angles Department of Water and Power
Period: 2019 – 2024

The RS-X project uses a two-phase design/build delivery method to design and construct a new 320MVA 230kV/34.5kV substation and its associated 230kV and 34.5kV ductbanks to provide dedicated power to LAX airport. RS-X is LADWP’s first Receiving Station built over three decades and includes a 230kV Switchyard, 34.5kV switchyard, and control house. 

For this project, Kewo Engineering provided electrical engineering design and construction administration support for the following primary scopes of work: 

• (4) 230kV Underground Ductbanks; 
• 320MVA Receiving Station, including 230kV switchyard, 34.5kV switchyard and control room; and 
• 34.5kV Underground Circuits within substation. 

 We developed electrical designs and specifications at various stages (30%, 60%, 90%, and 100%) and provided engineering support during construction. We performed various analysis and studies, including grounding, lighting/photometrics, and AC/DC load. 

The substation design  is for infrastructure at a 63,000sqft facility to accommodate high-voltage electrical equipment (transformers, circuit breakers, CVT’s, disconnects, etc.), lighting, and associated control room. 

 The 230kV ductbank design involves (4) new 230kV circuits by intercepting two (2) existing 230kV circuits between Scattergood Generating Station and Receiving Station K. Intercepting these circuits provides the substation with two primary sources of power: Scattergood Generating Station and RS-K.