An Analysis of Temperature and Pressure on Loading.pptVIP

An Analysis of Temperature and Pressure on Loading Oil-Immersed Distribution Transformer 负载时油浸式配电变压器的温度和压力分析 Transformer is a part of equipment on transmission line. The transformer’s manufacturers have analysis design to efficient transformer. In this case this research aims to analysis of transformer temperature and pressure. This analysis results will be useful for improving and developing the design, to get more efficiency, and will be useful for temperature prediction to plan supplied load. And also these can help to increase transformer aging and distribution system stability. 变压器是输电线路设备的一部分。变压器的生产厂家需分析设计以提高变压器效率。在这种情况下，本研究旨在分析变压器的温度和压力。这一分析结果将有助于设计的提高和发展，以获得更高的效率，并且将有助于负载时对温度的预测。此外，这些都会加速变压器的老化和巩固配电系统的稳定性。 安装在油侵式变压器各点的热电偶 点1、2、3、4、5、11是低压侧温度测试结果 点5、6、7、8、9、10与环境温度同时测量时的高压侧温度测试结果 在满负载情况下，变压器低压侧温度最高点的测试值与计算值比较 在满负载情况下，变压器高压侧温度最高点的测试值与计算值比较 From Fig. 10 and 11, it was shown the results have some difference from theory (Fig.1). The oil temperatures at the middle of the tank were relatively approximate to top oil temperature. The test result was acceptable because top oil temperature was not more than the acceptance value (60 °C), and the conductor hottest spot temperature was not more than the acceptance value(140 °C). In this characteristic, the large transformer may be designed in an ONAF type because of its better oil circulation than ONAN type. 如图10和图11，实验结果与理论有些差异（图1）。油箱中的油温相对近似于顶部油温。测试结果是可以接受的，因为顶部温度没超过接受值（60°C），并且导体的最热点温度没超过接受值（140°C）。根据这一特性，大型变压器可以设计成油侵强迫风冷式因为它比油侵风冷式有更好的油循环能力。 The parameters of transformer in this research can predict the hottest spot temperature （as from Fig.13, 14）. For the way to develop this research is to test the overload transformer condition, in order to get the reference data for transformer operation and design. 变压器的这项研究参数可以预测最热点温度（如图13、14）。对于如何开展这项研究是测试过载变压器的条件，以得到变压器运行和设计的参考数据。 额定负载时压力测试结果 In this test at rated load, the pressure is around 3.9 psi. While in real operating condition, the transformer may be overload or