描述
(1)油枕:其容量約為互感器油量的8-10%。作用是:容納互感器因溫度的變化使互感器油體積變化,限制互感器油與空氣的接觸,減少油受潮和氧化程度。油枕上安裝吸濕器,防止空氣進(jìn)入互感器。
(2)吸濕器和凈油器:吸濕器又稱(chēng)呼吸器,內(nèi)部充有吸附劑,為硅膠式活性氧化鋁,其中常放入一部分變色硅膠,當(dāng)由蘭變紅時(shí),表明吸附劑已受潮,必須干燥或更換。凈油器又稱(chēng)過(guò)濾器,凈油缸內(nèi)充滿吸附劑,為硅膠式活性氧化鋁等,當(dāng)油經(jīng)過(guò)凈油器與吸附劑接觸,其中的水份、酸和氧化物被吸收,使油清潔,延長(zhǎng)油的使用年限。
(3)防爆管(安全氣道):防爆管安裝在互感器箱蓋上,作為互感器內(nèi)部發(fā)生故障時(shí),防止油箱內(nèi)產(chǎn)生高壓力的釋放保護(hù)?,F(xiàn)代大型互感器已采用壓力釋放閥代替安全氣道。當(dāng)互感器內(nèi)部發(fā)生故障壓力升高,壓力釋放閥動(dòng)作并接通觸頭報(bào)警或跳閘。此外,互感器還具有瓦斯保護(hù),溫度計(jì)、油表等安全保護(hù)裝置。
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國(guó)西屋)系列產(chǎn)品》
⑤SIEMENS(西門(mén)子系列產(chǎn)品)》
⑥銷(xiāo)售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門(mén)子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂(lè)):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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