Below 65%, the ramping rate is approximately 2.5% per minute, using control rod adjustment (GE, 2006). In the last decades, however, considerable progress has been made in these areas, with the progressive automatisation of regulation and control operations and significant improvements in data acquisition and processing techniques. This has significantly increased the performance of nuclear power plants during load cycling, and has also had a beneficial effect on overall plant availability. The timely flow of reliable in-core measurements, together with an automatic and efficient operational control system, allows for a quicker detection of deviations and for the prompt restoration of normal values.