Improvement of Troubleshooting Skills for Power Module of Digital Electricity Meters

• Main Authors: CHANG,CHE-JU, 張哲儒
• Other Authors: WANG,WEI-MIN
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/8y56a7

碩士 === 崑山科技大學 === 電機工程研究所 === 106 === Electronic watt-hour meters have evolved from traditional mechanical watt-hour meters to current electronic watt-hour meters, and electronic watt-hour meters are used in many places to monitor the amount of electricity used. The structure of the electronic watt-hour meter is different from that of the mechanical watt-hour meter, but there are cases where it is impossible to calculate or calculate the electrical error. In this paper, the analysis of the electrolytic capacitor aging of the electronic watt-hour meter power module will cause the client to be unable to anticipate monitoring the power consumption or losing the power supply. This paper analyzes and compares two different electrolytic capacitors A and B of the power module. In this experiment, the two electrolytic capacitors A and B are measured at an ambient temperature of 30 degrees and a constant temperature of 50 degrees via LCR. The measurement results are used to compare which electrolytic capacitors make the electronic watt-hour meter for a long time. It can be used normally in high temperature environment and is not easy to cause malfunction. The useful life of an electronic watt-hour meter that can be extended after changing the electrolytic capacitor.