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Type One Energy announced on May 27 that it had successfully completed the first formal design review of Infinity Two, which is based on the world’s only implementable, peer-reviewed physics […]
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Recently Mechanical Dynamics & Analysis (MD&A) completed a complex, multiple-component combined-cycle major inspection and refurbishment project that successfully brought both turbines and both generators back to full and reliable operations. The 474 MW combined-cycle plant was depending on the complete and efficient renewal of its Unit 2 system. This major project demonstrates..
Energy Central…
The Tennessee Valley Authority (TVA) has reached another milestone in its effort to bring Watts Bar Unit 2 into commercial operation: The unit completed its final power ascension test—a 50% load rejection from full power—and safely returned to full power on September 30.
The testing had been halted on August 30 due to a switchyard transformer fire. Although the fire did not affect Unit 2’s systems, which responded to the event as designed, the affected transformer had to be replaced before testing could resume. The TVA said a rigorous and detailed inspection, repair, and testing process was performed before the transformer was returned to service on September 26.
Power ascension testing included more than 40 required tests at various power levels up to 100% output, with pauses at 30%, 50%, and 75% (Figure 1). The gradual increase in power provided data, which was used to verify that the unit was operating as designed.
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1. Watts Bar Unit 2 power ascension testing plan. |