This paper introduces the principle and composition of the fuel-cell-technique-based on-line monitoring system for dissolved gases in transformer oil. Its application in Shenzhen Power Supply Bureau is described as well.

• 介绍了基于燃料电池技术的变压器油中溶解气体在线监测系统的原理、组成及其在深圳供电局的实际应用情况。