Details

Autor(en) / Beteiligte

• Liu, Zichen
• Xu, Yongsheng
• Yin, Fanghui
• Cao, Bin
• Mei, Hongwei
• Zhang, Fuzeng
• Jiang, Yi
• Wang, Liming

Titel

Experimental Study on the Effect of Surface Contamination on the Function of Thyristor Voltage Monitoring Board

Ist Teil von

• 2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2021, p.239-242

Ort / Verlag

IEEE

Erscheinungsjahr

2021

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• This paper reproduces failure of thyristor voltage monitoring (TVM) board by artificial experiments and the effects of contamination and environmental conditions on TVM function are studied. The results show that the increase in relative humidity can lead to the deviation of check-back signal while the effect of temperature change is insignificant. The increase in both equivalent salt deposit density (ESDD) and non-soluble deposit density (NSDD) can reduce the humidity threshold of TVM. According to the test results, measures such as decreasing the environmental relative humidity before the converter valve is back in operation, or cleaning device regularly are proposed to avoid TVM failure.