Dissolved gas analysis in transformer oil by accurately detecting the composition and concentration of typical fault gases such as C2H2 and H2,the latent faults of transformer can be found in time,and the fault types of transformers can be judged.Due to the stable physical and chemical properties and excellent conductivity,two SnO2 based electrochemical gas sensor materials were prepared.Octahedral SnO2 sensor was sensitive to C2H2 gas,dodecahedral SnO2 sensor had higher response to H2 gas.The experimental results shown that the cross-interference of the two gas sensors was low,and the sensor array can be prepared to measure the mixture gases of H2 and C2H2.
Chen Chuan, Sun Liang, Liu Xin, Yi Yongli, Li Wu
. Detection of dissolved fault gases H2 and C2H2 in transformer oil by sensor array[J]. New Chemical Materials, 2020
, 48(11)
: 268
-271
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.11.060
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