对核电厂电气接线中接地变压器应用进行了介绍,并根据接地电气装置的选取原则和核电厂电气回路中主要电气设备的绝缘性能水平,提出了核电厂发电机侧中性点接地变压器的计算和校验方法,分析了其厂用变压器一次侧采用中性点经接地变压器高阻接地和不接地两种方式的选取原则。 The application of grounding transformer in the electrical wiring of nuclear power plant is introduced. According to the selection principle of grounding electrical equipment and the insulation performance of the main electrical equipment in the electrical circuit of nuclear power plant, the calculation and calculation of the neutral point grounding transformer Calibration method, analysis of the primary side of the transformer with a neutral grounding transformer by high resistance grounding and non-grounding two ways to choose the principle.