People's Railway Network News (Correspondent Liu Bo, Zhu Lili) On May 21, 2019, the first withstand voltage test of Hohhot Metro Line 1 adopted the method of variable frequency series resonance, which can accurately detect insulation defects and withstand capability of power cables, and received strong support from the project department. To ensure the smooth completion of this test, the test personnel closely communicated with the manufacturer and explosion-proof control cabinet construction technicians, and formulated a targeted test plan based on the actual site conditions. During the test, the withstand voltage tester operating procedures were strictly followed by the test personnel, conducting scientific and precise testing. To ensure the safety of personnel and equipment on site, the project department closed the section in advance before the test, repeatedly checked the safety of the section, and specially assigned safety officers during the test to ensure the safety of the entire testing process. Power frequency high voltage simulation test With the active cooperation of project department leaders, supervisors, and technical personnel, the test personnel successfully completed the withstand voltage test of the 110kV high-voltage ring network power cable for Hohhot Metro Line 1. The successful completion of the first withstand voltage test of the 110kV high-voltage ring network power cable for Hohhot Metro Line 1 marks that the Houtabuta Station is ready for power supply, laying a solid foundation for the next step of commissioning work.
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