Nuclear power plant experiences switchyard malfunction

Tennessee Valley Authority (TVA) officials declared a “Notification of Unusual Event” at the two-unit, 2,320 MW Sequoyah Nuclear Plant in Tennessee Feb. 12 and notified federal, state and local officials. A “Notification of Unusual Event” is the lowest of four Nuclear Regulatory Commission (NRC) classifications.

TVA said an electrical malfunction in the switchyard at the plant damaged some localized electrical distribution equipment but did not affect the operation of the two units.

The event occurred in the non-nuclear portion of the plant’s electrical switchyard which is similar in operation to all electrical power plants. Nuclear safety related equipment was not required or impacted and TVA said both units continued to operate at full power.

TVA said Sequoyah plant officials terminated the notice the same day, after the electrical fault was isolated from the remainder of the electrical switchyard.

Subscribe to Nuclear Power International magazine

Sponsored by FLSmidth

Related Articles

 North Anna nuclear power plant shuts down

North Anna nuclear power plant shuts down

Unit 1 of the North Anna nuclear power plant automatically tripped offline Feb. 26 as workers with Dominion (NYSE: D) were in the process of shutting the reactor down.

Second-oldest nuclear reactor in S. Korea OK to restart

South Korea’s nuclear watchdog approved a plan to restart a 679-MW nuclear power unit that was shut down after reaching its 30-year lifespan.

Follow Power Engineering on Twitter
Latest News

EIA: Coal-fired generation alive and well in the coming decade

Coal-fired power generation from existing plants will increase through 2025, this according t...

Report: Nuke dump radiation leak could have been prevented

A radiation leak that forced the indefinite closure of the federal government's only undergro...

Areva’s nuclear reactor vessel flaws may be “costly”

The French nuclear regulator says anomalies found in Areva’s nuclear reactor technology are “...

Southern Power acquires 32MW solar project from First Solar

Southern Co. (NYSE: SO) subsidiary, Southern Power, has acquired controlling interest in...

Second robot completes survey of Fukushima reactor containment vessel

A second shape-shifting robot completed a survey from inside of the Fukushima Daiichi nuclear...

PacifiCorp considers joining California ISO

PacifiCorp signed a memorandum of understanding to explore full participation in the Californ...

Herbert: Uranium shouldn't be in Utah before federal review

Gov. Gary Herbert said Thursday that he wants federal regulators to review how hazardous a ty...

Environmentalists press for bill to expand solar power

Environmentalists are urging lawmakers to back a bill they say would help more residents inve...

Power Engineering Current Issue

02/01/2015
Volume 119, Issue 2
1502PE-cover
Products Showcase
Dynamic Fluoride Ion cleaning DFIC of industrial natural gas turbines Hi-Tech Furnace Systems

Dynamic Fluoride Ion Cleaning of IGT Parts

The Dynamic Fluoride Ion Cleaning (DFIC) Process from Hi-Tech Furnace Systems is able to clean deep, narrow cracks of oxides by cycling between negative, atmospheric, and positive pressure.

Archived Articles

2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015

Power Industry Wire News

Dais Analytic Corporation Appoints Eliza Wang to Board of Directors

Dais Analytic Corporation Appoints Eliza Wang to Board of Directors

Magnum Hunter Resources Chairman and CEO to Present at IPAA OGIS New York 2015

Magnum Hunter Resources Chairman and CEO to Present at IPAA OGIS New York 2015

GEI Global Energy Corp. Explores Solar Opportunities

GEI Global Energy Corp. Explores Solar Opportunities

Envision Solar Installs Solar-Powered EV Charging Stations in San Francisco as Part of "Driving on Sunshine" Campaign

Envision Solar Installs Solar-Powered EV Charging Stations in San Francisco as Part of ...

ZBB Energy and Solar Power, Inc. (SPI) Announce Global Strategic Partnership With an Initial Supply Agreement Valued at Between $80 Million and $120 Million

ZBB Energy and Solar Power, Inc. (SPI) Announce Global Strategic Partnership With an In...

Power Engineering

Article Archives for Power Engineering Magazine

Continuing Education

Professional Development Hours

To access a course listing associated to a specific topic listed below, click on the topic of choice from the list below.

Latest Energy Jobs

View more Job Listings >>