高压变压器油面温度计的数字化改造  

The digital transformation on oil surface thermometer of high-voltage transformer

作　　者：孙子立 

机构地区：[1]广东省连州市连州发电厂维修部,广东省连州市513400

出　　处：《中国科技信息》2011年第14期139-139,148,共2页China Science and Technology Information

摘　　要：把火力发电厂220kV主变和13.8kV高厂变的BWY-803A(TH)-288型油面温度计改造为XIN-MMA型油面数控温度显示仪,提高了就地温度显示精度。通过数字化仪表输出接点代替油面温度计的微动开关接点,确保了变压器冷却系统设备控制精度,延长了仪表的校验周期。XIN-MMA digital oil surface thermometer increasing local temperature display accuracy,which instead of BWY-803A（TH）-288 oil surface thermometer be used for 220kV and 13.8kV HV transformer in the power plant.Instrument output contacts through digital thermometer instead of the oil surface micro switch contacts to ensure the accuracy of the transformer cooling system equipment control and extend the instrument＇s calibration cycle.

关 键 词：变压器 油面温度计 XIN-MMA油面数控温度显示仪 开关接点 

分 类 号：TH811[机械工程—仪器科学与技术]