Failure Analysis on the Thrust Wear Detector of Turbine in Nuclear Power Plant
DIGMEO37MV is the thrust wear detector of turbine. On 12th, May, before the turbine ran up, the value of this channel often fluctuated. The engineer checked the channel, terminal, continuity, insulation, and driver and so on, no problem finds. At last, when disconnected the end of the detector from the driver, then re-connected the end to the driver, the channel value is OK, after a while it became wrong again. Measured the resistance of the detector, it is 13Ohm when the channel is OK, and 76 Ohm when the channel is wrong. According to the result of the checked, the conclusion is the character of the detector had changed. Both the measured value GME037MV and GME038MV are high (0. 7mm), the turbine will trip, In the end the detector of GME037MV was replaced when the unit shut down.
Nuclear power plant Thrust wear Detector Turbine
LV AI GUO
China Nuclear Power Design Co., (Shen Zhen City)1066, Nigang West Road, Luohu district, Shenzhen City, Guangdong Province, P.R.China
国际会议
ISSNP2008、CSEPC、ISOFIC2008(第二届21世纪和谐核电系统国际会议、第四届电厂控制中认知系统工程方法国际会议暨第三届未来核电厂仪表与控制国际会议)
哈尔滨
英文
118-122
2008-09-08（万方平台首次上网日期，不代表论文的发表时间）