对变压器变比的测试.docx

摘要变压器变压比是变压器一次绕组与二层绕组之间的电压比。是为了检测变压器每次绕组的匝数是否符合设计要求。测量变压器的变压比，是变压器交接、大修后必须进行的试验，在变电所投入使用时，变压器是保证变电所所用电与馈出电的电压稳定的重要设备，具体到变压器时，是变压器变压比起作用，通过试验可以验证变压器的电压变换是否正确，还可以检查各线圈的匝数比与设计是否相符、各分接引线是否连接正确，及变压器匝数是否短路等，变压器能否投入运行，也要根据试验结果进行判断。本论文主要是通过变压器变压比自动测试仪对树脂绝缘干式整流变压器的变压比进行测试，通过测试结果判断该变压器变压比是否合格。关键字：变压器，变压比，变压器变压比自动测试仪AbstractTransformer transformer ratio is the voltage transformer primary and secondary windings between the voltage ratio. In order to detect whether the number of turns of each winding of the transformer meets the design requirements.Voltage ratio measurement of transformer, transformer overhaul test must be carried out after the handover, the substation put into use, is to ensure that the transformer substation auxiliary power feeder and important electrical equipment of voltage stability, specific to the transformer, the transformer is compared, through the test can verify voltage transformer is correct, you can also check the coil number ratio and design are consistent with the tap lead is properly connected, and the transformer turns is short circuit, the transformer can put into operation, should be judged according to the test results.This paper is mainly through the transformer transformer ratio automatic test instrument for resin insulation dry rectifier transformer transformer ratio of the test, through the test results to determine whether the transformer transformer ratio is qualified.Keyword:Transformer, transformerratio,transformertransformerratio automatic test instrument目 录摘要IAbstractII目 录III1绪论12试验概况12.1测试背景12.2参照标准12.3试验目的12.4试验对象与工具13变压器参数23.1变压器参数23.2变压器变比23.3变压器接线原理图24变压器变压比自动测试仪参数45变压比测试55.1测试步骤55.2注意事项76变压比测试结果7结论9参考文献101绪论随着电力工业的发展，电力产品的质量要求也在不断提高。尤其是对变压器的质量要求也最为严格。变压器的变压比是变压器参数的重要部分。测量变压器的变压比就是测量变压器，也叫匝数比试验。变压器的变压比通常为分数值或是小数，因此，一般采用四舍五入法取整数，作为变压器的变压比。但是，此变压比与匝数比之间会有微小偏差，所以，此误差应控制在允许范围之内。因此，在变压器投入使用前，要对变压器变压比进行测试。变压比检测常用的方法有双电压表法和变压比电桥法，还有较先进的变压器变压比自动测试仪等。本次试验采用变压器变压比自动测试仪对变压器变压比进行测试。2试验概况2.1测试背景 本次试验属于大汉阳有轨电车项目试验。此次试验为大汉阳有轨电车项目B6箱式变电所树