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August 23, State Grid Jiangsu Electric Power Research Institute developed its own international first UHV transformer test vehicle completed the UHV Huai on-line Soochow last two 1000 kV bus voltage transformer test work. The successful application of UHV transformer on-site test vehicle in Huai-Shang line project indicates that it has a full range of high-voltage power transformer mobile inspection technology covering voltage range of 110 kV to 1000 kV. It is the first of its kind in China and abroad.
Power transformer site inspection is to protect the power grid protection device accurate action, accurate and reliable measurement of electrical energy an important means. In the past, the on-site inspection adopted scattered test equipment, which needed to build a temporary platform. The equipment was large in volume and heavy in weight. The wiring of the equipment was complicated and difficult to install. There was a big security risk and the test data could not be transmitted remotely. Low, safety factor is not high. With the development of power grids moving towards a new phase of high voltage level, large capacity transmission and long distance transmission, the development level of power transformer field inspection technology, the status of testing equipment and the safety performance can not meet the development trend of high voltage and high current in the field, especially In the field test of UHV substations, the traditional test methods and test capabilities have failed to meet the test conditions required by the regulations.
Since 2009, SAEP has carried out researches on mobile inspection technology of transformer with high voltage level. The hospital made a number of breakthroughs in key technologies such as the development of new on-board standard equipment, reactive power optimization design of large-capacity test equipment, integrated integration of test equipment, automatic control of high voltage and heavy current field inspection and safety protection. In 2009, it successfully developed the first mobile test vehicle with 220 kV (110 kV compatible) transformers in China and pioneered the mobile integrated test technology of domestic high-voltage power transformers. In 2013, it successfully took the lead in China to achieve 500 kV 220 kV) Transformer mobile test vehicle engineering applications; the end of 2015, completed the first set of the world's first 220 kV to 1000 kV development of a full range of high-voltage power transformer mobile test vehicle.
It is reported that, as of now, the series of test cars in Jiangsu, Shanghai, Zhejiang and other provincial power companies in the energy trade successfully applied to complete the 110 kV to 1000 kV voltage levels, more than 10,000 pass-level transformers Site inspection and handover test to ensure the safe operation of the power grid and trade fair and fair, reducing the potential safety hazard, saving a lot of manpower and material resources, greatly improving the test efficiency and shorten the blackout test time to achieve the site inspection technology intelligence, Significantly improve the test of power transformers.
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September 15, 2022
September 15, 2022
Mr. James
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