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变压器油不同采样方法的分析

针对变压器油不同的试验检测项目,需要用不同的容器来取样。
For different test items of transformer oil, different containers should be used for sampling.
一般来说,含水量、含气量、溶解气体的色谱分析用到的变压器油油样要用注射器取,其他项目所用的油样可以用棕色磨口瓶采取。
Generally speaking, transformer oil samples used in chromatographic analysis of water content, gas content and dissolved gas should be taken by syringe, and oil samples used in other projects can be taken by Brown abrasive bottle.
用注射器采取含水量、含气量测试所用变压器油油样,主要是为了隔绝空气,含水量、含气量低的变压器油,吸潮吸气速度极快,在空气中取样或用瓶子取样,测定的结果会有较大误差。即使用注射器取样,若注射器密封不良或因磨损过甚而泄漏,也会造成含水量、含气量上升的误差。
Transformer oil samples used for measuring water content and gas content with syringes are mainly used to isolate air, low water content and gas content transformer oil, which absorbs moisture very quickly and can be sampled in air or in bottles. The results of measurement will be more error. Even if the syringe is used for sampling, if the syringe is not well sealed or leaks due to excessive wear and tear, it will also cause errors in the increase of water content and gas content.
山东变压器油
用注射器采取变压器油中溶解气体色谱分析的油样除了隔绝空气外,还可以防止变压器油中溶解气体散失和试验时的脱气方便。如果脱气装置对取样容器有特殊要求,那就必须配以专用取样容器了。
The dissolved gas chromatographic analysis of transformer oil with syringe can not only isolate the air, but also prevent the dissolved gas from dispersing in transformer oil and facilitate the degassing during test. If the degassing device has special requirements for the sampling container, it must be matched with a special sampling container.
而用棕色磨口瓶采样的优点有两个:一是能遮光;二是密封相对较好而又开启方便。对一般测试项目来说,油样见不见光,对测试结果影响不大,但对于变压器油的介质损耗因数来说,油样见光后测试结果与不见光时明显不同,不用棕色瓶取样,测试结果是不准确的;即便使用棕色瓶取样,也不宜在强光下长时间照射。
There are two advantages of sampling with brown flask: one is to shade the light; the other is to seal relatively good and easy to open. For the general test items, the oil sample can not see the light, which has little effect on the test results, but for the dielectric loss factor of transformer oil, the test results are obviously different from those without light, and the test results are inaccurate without brown bottle sampling; even if the use of brown bottle sampling, it is not appropriate to be long under strong light. Time irradiation.
上文内容是由山东变压器油提供,想要了解更多的内容可以关注我们的网站:http://www.jnwdsh.com,在网站中有更多精彩内容,希望能为你提供帮助!
The above content is provided by Shandong transformer oil. If you want to know more, you can pay attention to our website: http://www.jnwdsh.com. There are more exciting content in the website. Hope to help you!
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