Open-Phase Analysis for Nuclear Plants

Open-Phase Fault Analysis for Nuclear Power Plants

Following an open-phase fault event at Byron Nuclear Power Station near Rockford, Ill. in 2012, the Institute of Nuclear Power Operations (INPO) began to raise awareness of this potential nuclear plant design vulnerability in the U.S. By 2013, four open-phase fault events had occurred at nuclear power plants in the U.S., Canada, and Sweden, which prompted the World Association of Nuclear Operators (WANO) to raise awareness outside the U.S.

 

"The efforts of this user’s group have been instrumental in development of our design concept for open-phase fault protection."

- Rob Whalen, VP Nuclear Engineering, TVA
 

In March 2013, ETAP NUUG formed the ETAP NUUG Open-Phase Task Force, a team of power system analysis experts from Duke Energy, Enercon Services, Inc., Exelon Corp., MPR Associates, Inc., Sargent & Lundy, LLC, Southern Nuclear, and Tennessee Valley Authority (TVA). Their mission: assess the ability of the newly-designed ETAP Unbalanced Load Flow module to perform a detailed quantitative analysis of an open-phase fault for a typical nuclear power plant.

The work of the ETAP NUUG was recognized by the Nuclear Regulatory Commission (NRC) at a Washington, D.C. public meeting in summer of 2013.

In March 2013, ETAP NUUG formed the ETAP NUUG Open-Phase Task Force, a team of power system analysis experts from Duke Energy, Enercon Services, Inc., Exelon Corp., MPR Associates, Inc., Sargent & Lundy, LLC, Southern Nuclear, and Tennessee Valley Authority (TVA). Their mission: assess the ability of the newly-designed ETAP Unbalanced Load Flow module to perform a detailed quantitative analysis of an open-phase fault for a typical nuclear power plant.

The work of the ETAP NUUG was recognized by the Nuclear Regulatory Commission (NRC) at a Washington, D.C. public meeting in summer of 2013.

In March 2013, ETAP NUUG formed the ETAP NUUG Open-Phase Task Force, a team of power system analysis experts from Duke Energy, Enercon Services, Inc., Exelon Corp., MPR Associates, Inc., Sargent & Lundy, LLC, Southern Nuclear, and Tennessee Valley Authority (TVA). Their mission: assess the ability of the newly-designed ETAP Unbalanced Load Flow module to perform a detailed quantitative analysis of an open-phase fault for a typical nuclear power plant.

The work of the ETAP NUUG was recognized by the Nuclear Regulatory Commission (NRC) at a Washington, D.C. public meeting in summer of 2013.

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