Recently, in order to improve the safety and reliability of the spring inspection and obtain accurate equipment data, the Baishan Power Supply Company Laboratory took the "please come in" initiative and invited Shanghai professional technicians to the laboratory to conduct a comprehensive "physical examination" of the two gas chromatographs. .
The GC-900-SD gas chromatograph of the Baishan Power Supply Company Laboratory is in accordance with the national standard GB / T17623-1998 "Gas Chromatograph Determination of the Content of Dissolved Gas Components in Insulating Oil" and the Power Industry Standard DL / T722-2000. A fully microcomputerized, high-performance gas chromatograph designed specifically for power systems designed for the analysis and judgment of dissolved gases in transformer oil. This instrument uses a dual-column parallel split system, equipped with TCD and dual FID three detectors and a nickel catalyst catalytic converter, which can realize the seven gas components dissolved in the oil in one injection: hydrogen, carbon monoxide, carbon dioxide, methane, Ethylene, ethane, and acetylene are measured separately. After a comprehensive "physical examination" of the manufacturer's technical staff, it was found that the working performance of the chromatographic working column of the gas chromatograph has been significantly reduced due to long-term work at a high temperature of 360 ° C, and the instability of the instrument has increased, which is likely to cause deviations in test data. In view of the urgent situation, the professional immediately asked the superior leaders to replace the chromatographic working column in question in a timely manner, and carried out a comprehensive commissioning of the gas chromatography instrument to ensure that the instrument was in the best working state and provide accurate and accurate data for the safe and stable operation of the equipment. data. At the same time, professionals have comprehensively analyzed and answered the difficult problems encountered in the use of equipment and daily work.
Through the "physical examination" of the test equipment, the safety spring examination is promoted, the hidden danger of the equipment is eliminated, and the technical level of professionals is also improved.
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