摘要油浸式变压器是输配电系统中重要的电气设备，目前已广泛应用于各领域 中。由于变压器的绕组存在阻抗以及它的电磁互感过程中存在能量损失，这些都 会造成变压器在工作过程中产生热量，这些热量中有一部分会储存在变压器的冷 却油中，并且油顶面的温度最高。不同规格的变压器有不同的温升范围，超出范 围会损坏变压器，所以需要对变压器进行温升试验。
本设计主要使用虚拟仪器技术，即通过 LabVIEW 和与其配套的下位机，自 动完成变压器的温升试验，并测量出变压器绕组的冷态电阻。这种方法的主要优 点就是方便、快捷、自动化程度高，可以让人们从冗长的变压器温升试验中解放 出来。72258
该论文有图 18 幅，参考文献 25 篇。
毕业论文关键词：油浸式变压器 温升试验 冷态电阻 LabVIEW
Design of Automatic Test System for Temperature Rise Test of Transformer Based on LabVIEW
Abstract Oil-immersed transformer is an important electrical equipment of the transmission and distribution system, it has been widely used in various fields。 Energy loss due to the presence of the transformer winding impedance is present as well as its electromagnetic mutual process, these will cause the transformer generates heat during operation, the heat in part will be stored in transformer cooling oil, and temperature of the oil top surface is the highest。 Different specifications of the transformers have different temperature range, transformer which is out of range will be damaged, so the transformer temperature rise test is necessary for transformer。
This design mainly using virtual instrument technology, namely through LabVIEW and its support of the next crew, auto-complete transformer temperature rise test and measure the cold resistance of transformer winding。 The main advantage of this method is convenient, fast, high degree of automation that allows people to be liberated from the lengthy transformer temperature rise test。
The papers Figure 18, reference 25。
Key Words:Oil-immersed transformer temperature rise cold resistance LabVIEW
目 录
摘要 I
Abstract II
目录 III
图清单 V
1 绪论 1
1。1 课题研究背景及意义 1
1。3 研究内容及实施方案 2
2 系统设计方案分析论证 3
2。1 系统硬件结构总体设计方案 3
2。2 温度传感器选型论证 3
2。3 冷态电阻测量方案论证 5
2。4 单片机选型论证 6
2。5 通信方案设计论证 7
2。6 供电模块方案论证 7
3 系统硬件设计 9
3。1 温度传感器接口电路设计 9
3。2 冷态电阻测量电路设计 9
3。3 单片机最小系统设计 LabVIEW变压器温升试验自动测试系统设计+程序:http://www.youerw.com/zidonghua/lunwen_82190.html