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American Transmission Company

Phasor Measurement Unit Project


American Transmission Company’s (ATC) Phasor Measurement Unit Project is deploying synchrophasor technologies across the company’s Wisconsin service area. The project expands the collection of synchrophasor data throughout ATC’s transmission system from 25 substations to 73 substations by project completion. ATC is using synchrophasor monitoring to improve electric system reliability and restoration procedures and to help prevent the spread of local outages to neighboring regions. The project deploys phasor measurement units (PMUs), digital fault recorders (DFRs), a new synchrophasor data concentrator, and improved data collection software. These devices increase the ability of grid operators to monitor the condition of bulk power systems in near-real time, enable earlier detection of conditions that could result in grid instability or outages, and facilitate the sharing of information with neighboring regional control areas.

Contact Information

Jessica Basilio
ATC Management Inc., Corporate Manager for
American Transmission Company LLC
Recipient Team Website:

Recipient: American Transmission Company (Phasor Measurement Unit Project)
HQ State: Wisconsin
NERC Region: MRO
Total Budget: $2,661,650
Federal Share: $1,330,825
Funding Program:
Project Type:
Targeted Benefits:
  • Improved Electric Service Reliability
  • Reduced Congestion Cost
  • Reduced Costs from Transmission Line Losses
  • Reduced Electricity Costs for Customers
  • Reduced Operating and Maintenance Costs
  • Reduced Wide-Scale Blackouts