大型变压器试验数据异常案例分析

Case Analysis of Abnormal Test Data of Large Transformer

大型变压器是电网中的重要设备,根据准确的变压器试验结论可及时发现设备缺陷及隐患,对保障电网安全稳定运行具有重要意义。结合实际现场试验,列举了几个因试验接线方法错误、试验操作过程不当等原因造成的变压器试验数据异常案例,并给出相应的解决措施。排除这些干扰因素后,再次试验得到准确的变压器试验数据和试验结论。

Large transformer is the important device in power grid.The defect and hidden danger of the device can be found timely based on accurate conclusion of transformer test,which has important significance to ensure the security and stability operation of power grid.Based on the actual field test,several cases of abnormal transformer test data caused by reasons of the wrong wiring method and improper operation process of test and so on are listed and corresponding solving measures are proposed.After the elimination of these interference factors,accurate test data and conclusion of transformer are obtained in the test once more.