Overview
TPSS#3 -McLean is an operational substation in the United States owned by the Washington Metro Area Transit Authority. It operates at 34.5 kV and 750 V, supporting transit electrical infrastructure.
TPSS#3 -McLean is a traction power substation located in the United States, owned and operated by the Washington Metro Area Transit Authority (WMATA). This facility is part of the electrical infrastructure that powers the Washington Metro transit system, providing reliable electricity for train operations in the McLean area. The substation operates at two voltage levels: 34.5 kV for primary distribution and 750 V for traction power supply to the rail system. As a critical component of WMATA's electrical network, it adheres to US NERC reliability standards and FERC regulations for transmission-level assets, ensuring grid stability and safety. The facility is classified as a substation under the electrical infrastructure sector, with a focus on transit power delivery. Located in McLean, Virginia, this substation plays a vital role in supporting the Washington Metro's daily operations, serving thousands of commuters. Its urban location and integration with the transit system highlight its importance for community mobility and regional economic activity. The facility's operational status ensures continued service reliability for the metro network.
Environmental context
The substation is situated in an urban environment in McLean, Virginia, a densely populated area with significant transportation infrastructure. Its operation supports electric rail transit, which reduces reliance on fossil-fuel vehicles and lowers overall emissions. The facility's voltage levels and criticality to grid stability are managed under US regulatory frameworks, with minimal direct environmental impact beyond standard electromagnetic fields and noise considerations.
Frequently asked questions
TPSS#3 -McLean is located in McLean, Virginia, United States, at coordinates 38.924229, -77.210774.
TPSS#3 -McLean is a traction power substation that converts high-voltage electricity to lower voltages (34.5 kV and 750 V) to power the Washington Metro transit system.
The substation is owned and operated by the Washington Metro Area Transit Authority (WMATA), the agency responsible for public transit in the Washington, D.C. metropolitan area.
Substations in the US must comply with NERC reliability standards for grid stability and FERC regulations for transmission assets. Additionally, ISO/IEC 61850 standards for substation automation may apply.
TPSS#3 -McLean operates at two voltage levels: 34.5 kV for primary distribution and 750 V for traction power supply to the rail system.