APR-1400

[10] In 2022, Westinghouse Electric Company, which had acquired Combustion Engineering in 2000, filed a lawsuit in a U.S. federal court against KHNP and Kepco alleging that the APR-1400 was copied from the System 80 reactor.

This had the indirect effect that the U.S. government rejected a request for necessary APR-1400 permission to export to a third country while the case is resolved.

[20] After the election of President Moon Jae-in in May 2017, Korea Hydro & Nuclear Power (KHNP) suspended design work on Shin Hanul-3 and -4,[21] and construction work was suspended on Shin Kori-5 and -6 in July 2017 for a three-month period while a government-appointed committee met to discuss the country's future nuclear power policy.

[23] President Moon announced he supported the committee's decision, but added that no new construction would be allowed,[24] throwing doubt on the fate of Shin Hanul-3 and -4.

[26] In December 2009, a KEPCO-led consortium was awarded the contract to build four APR-1400 reactors at Barakah, United Arab Emirates.

[33][34] several research projects were performed at Khalifa University to ensure the safe operation for the APR1400 nuclear power plant.

NuGeneration (NuGen) was formed as the joint venture between Engie, Iberdrola, and Scottish and Southern Energy (SSE) to develop the Moorside Nuclear Power Station in Cumbria; the initial plans called for three Westinghouse AP1000 units.

[39] In July 2018 Kepco's preferred bidder status was terminated, in response to difficulties financing the development.

[62] In loop 2, there is one pressurizer (PZR) on the hot leg, where a steam bubble is maintained during operation.

The loops are arranged symmetrically, so the hot legs are diametrically opposed on the RPV's circumference.

Because the steam generators are elevated relative to the RPV, natural convection will circulate reactor coolant in the event of RCP malfunction.

The pressurizer is equipped with a pilot-operated relief valve which not only protects against Reactor Coolant System over-pressure, it also allows manual depressurization in the case of a total loss of feedwater.