Research on reliability of the power supply for air-cooled chiller and chilled water pump of nuclear power plant

By analyzing the power supply mode and control system of DEL air-cooled chiller and the power supply mode of chilled water pump for M310 unit, some disadvantages and suggestions are given about the power supply mode of air-cooled chiller and chilled water circulating pump combined with the operation experience of 1 ∼ 4 units of Fuqing nuclear power plant during commissioning and operation. Through deep analysis and discussion on the operation mode and safe reliability before and after improvement, the improvement can make the chilled water pump and the air-cooled unit having higher safety and reliability. (authors)