With the reactor "slowing" down in preparation for the shutdown, the power in Reactor No. 4 drops to about 1600 MegaWatts. The operators make a simple but fatal error by setting the regulator improperly.
ABOVE: views of the reactor room, control room, energy meter, and an outside view of the building structure.
![[ARROW]](../../../media/images/topic/arrow.gif){kind=icon}
![[Picture]](../../../media/images/disaster/2.gif)