LaCygne-Stillwell Energized 345  kV Reconductor

LaCygne, Kansas, USA

In order to optimize economic generation dispatch and meet power flow contractual commitments, the LaCygne – Stillwell 345 kV transmission line was up-rated using ACSS high temperature conductor.

As outages were unavailable to support timely project completion, PAR Electrical Contractors, a Quanta Services Company, performed the work using energized services technology and work practices.

The 32 miles (51 km) of 345 kV line on H-Frame wood structures was replaced with ACSS conductor within 20 weeks; the power transfer capability of the line was increased 50% to 1972 MVA at a cost of $10 million. The project payback was 14 months; the South West Power Pool receives a residual monthly benefit of $0.8 million.

PAR is the only North American company to safely and successfully re-conductor an energized 345 kV transmission line.

This project was profiled in a September 2003 Transmission & Distribution World magazine, article.


Voltage: 345 kV

Completion: 2003

Quanta Team: PAR Electrical Contactors

Services: Energized Services