Chernobyl Nuclear Power Plant in a turbine. Reactors 1 and 3 were eventually closed due to an agreement Ukraine made with the EU in 1995. Ukraine agreed to close the remaining units in exchange for EU assistance in modernizing the shelter over reactor N. 4 and improving the energy sector of the country, including the completion of two new nuclear reactors, Khmelnitski 2 and Rovno 4. Reactor N. 1 was shut down in 1996 with N. 3 following in 2000. On September 9, 1982, a partial core meltdown occurred in Reactor N. 1 at the Chernobyl plant. The extent of the damage was minor,
Chernobyl Nuclear Power Plant was equipped with both types of turbines; Block 4 had the newer ones. The newer turbines, however, turned out to be more sensitive to their operating parameters, and their bearings had frequent problems with vibrations. Four RBMK reactors were at Chernobyl Nuclear Power Plant, Ns. 1–4. The construction of two partially completed reactors, numbers 5 and 6, was suspended immediately after the accident at reactor N. 4, and was eventually cancelled in 1989. Reactors 1-3 continued to operate after the disaster. Reactor N. 2 was permanently shut down in 1991 after a fire broke out due to a faulty switch