Measuring Technique of the Gas Content in Insulating Oil Based on Differential Pressure Sensors

FU Zhong-jun; FU Han-yu

doi:10.13296/j.1001-1609.hva.2010.05.016

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Measuring Technique of the Gas Content in Insulating Oil Based on Differential Pressure Sensors

更新时间：2025-04-26

- Measuring Technique of the Gas Content in Insulating Oil Based on Differential Pressure Sensors
- High VoltageApparatus Vol. 46, Issue 5, Pages: 70-73(2010)
- 作者机构：
  
  江苏技术师范学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.05.016
  CLC： TM855
- Published：2010
- 稿件说明：
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[1]傅中君,洑涵妤.基于差压传感器的绝缘油含气量测量技术[J].高压电器,2010,46(05):70-73.

FU Zhong-jun, FU Han-yu. Measuring Technique of the Gas Content in Insulating Oil Based on Differential Pressure Sensors[J]. High voltageapparatus, 2010, 46(5): 70-73.
[1]傅中君,洑涵妤.基于差压传感器的绝缘油含气量测量技术[J].高压电器,2010,46(05):70-73. DOI： 10.13296/j.1001-1609.hva.2010.05.016.

FU Zhong-jun, FU Han-yu. Measuring Technique of the Gas Content in Insulating Oil Based on Differential Pressure Sensors[J]. High voltageapparatus, 2010, 46(5): 70-73. DOI： 10.13296/j.1001-1609.hva.2010.05.016.

摘要

绝缘油中含气量测定是GB/T 7595—2008规定的变压器绝缘油质量的一个常规检测项目

传统的真空差压法和二氧化碳洗脱法存在测定过程复杂、精度低、人为因素多、不便于自动化检测等缺点。笔者详细阐述了一种依据理想气体状态方程、应用差压传感器来测量和标定绝缘油中含气量的方法

并且给出了测量需要的环境温度、大气压和气体压强等测量电路。结果表明

所提供的技术原理正确

方案可行

测量精度高

操作简单

便于自动化测量。

Abstract

Measuring the gas content in insulating oil is a conventional test items used to identify the quality of transformer insulating oil

this test items is stipulated in GB/T 7595—2008.Traditional methods of measuring are two types of vacuum differential pressure method and degassing of CO2 method.There are many disadvantages that the accuracy is low

operations are complex

and easily to be influenced by the objective human factors

etc.In this paper

a new method of measuring and calibrating the gas content has been pointed out

based on the Perfect Gas Equation and the Differential Pressure Sensors.And then offers the measurement circuit of the ambient temperature

atmospheric pressure and gas pressure.The provided principle of this technique is correct

the operation is feasible

the measurement is precise

operation is simple

facilitate the automatic measurements.

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