明菊兰,钱洲亥,余璐静,徐恒昌,程士军.绝缘油中溶解气体在线监测装置自动校验评估及校准系统的研制[J].电测与仪表,2022,59(9):169-175. Ming Julan,Qian Zhouhai,Yu Lujing,Xu Hengchan,Cheng Shijun.Research and development of the auto testing, estimating and calibrating system for on-line monitoring device of gases dissolved in transformer oil[J].Electrical Measurement & Instrumentation,2022,59(9):169-175.
绝缘油中溶解气体在线监测装置自动校验评估及校准系统的研制
Research and development of the auto testing, estimating and calibrating system for on-line monitoring device of gases dissolved in transformer oil
An auto testing, estimating and calibrating system for online monitoring system of gases dissolved in transformer oil is designed and researched in this paper. The system adopts the oil circulation gas-liquid equilibrium mode to prepare standard oils with low, middle and high dissolved-gases concentrations in the closed tank automatically, and the automatic oil sample testing, data collection, results calculation and estimation are realized. It effectively overcomes the shortcomings of large error and low efficiency of manual verification. In addition, the data curve fitting is conducted based on the least square method,which reduces the detection error of the on-line monitoring device.
