Connection device for transfer test of arrester
A handover test and connection device technology, which is applied in the direction of measuring devices, measuring device casings, and parts of electrical measuring instruments, can solve problems such as affecting test results and increasing leakage current, so as to improve accuracy and test efficiency and avoid current leakage. The effect of leakage and easy development
Active Publication Date: 2020-08-14
STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology
Since there is no relevant hooking device on the market at present, using the self-contained hemp rope and other suspension arresters will bring the following problems: the high car hook is made of metal, which will cause an increase in the leakage current of 75% DC 1mA voltage, which will affect the test. result
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[0018] The present invention will be further described below in conjunction with accompanying drawing.
[0019] like figure 1 As shown, the connecting device for arrester handover test according to the present invention includes a suspension part 1, an insulating part 2, a fixing part 3 and a connecting part 4;
[0020] like figure 2 As shown, the suspension part includes a U-shaped base I5 and a connecting frame 6 fixed on the U-shaped base I. The middle of the connecting frame is a connecting hole, and the connecting hole includes a connecting hole I7 and a connecting hole II8. The side of the connecting hole II is provided with a fixed buckle 9. The suspension part is used to connect lifting equipment such as cranes and high trucks. If the connecting part of the lifting equipment is a hook, just hook the hook directly to the connecting hole Ⅰ; Therefore, in order to meet the requirements of different lifting equipment, a connecting hole II with a side opening is set on t...
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The invention relates to the field of measurement equipment, and discloses a connecting device of a lightning arrester commissioning test. The connecting device of a lightning arrester commissioning test includes a suspension unit, an insulation unit, a fixing unit and a connecting unit, wherein the suspension unit includes a U-shaped pedestal I and a connecting frame; the middle of the connectingframe is a connecting hole; the fixing unit includes a U-shaped pedestal II and a ball fixing base; a spherical groove is formed in the ball fixing base, and an opening is formed in the spherical groove; two ends of the insulation unit are respectively embedded with the U-shaped pedestal I and the U-shaped pedestal II and are connected through a bolt; the connecting unit includes a connecting ball, a connecting rod and a connecting hook; the connecting ball is fixed at one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the connecting hook; the connecting ball is arranged in the spherical groove; and the diameter of the opening of the spherical groove is less than the diameter of the connecting ball. The connecting device of a lightning arrestercommissioning test achieves the aim of isolating high voltage from the ground, can effectively avoid current leakage, can improve the accuracy of test results and the testing efficiency, and is convenient for development of the lightning arrester commissioning test.
Description
technical field [0001] The invention relates to the field of measuring devices, in particular to a connection device for a lightning arrester handover test. Background technique [0002] Surge arresters are important electrical equipment in substations, which protect both ends of lines or equipment from high current and high voltage impacts. According to the requirements of GB50150-2016, the arrester should be subjected to high voltage tests such as 1mA DC voltage and insulation before installation and operation, and it can be put into use only after the test results pass the test. [0003] At present, in order to ensure that the test site conditions are complete and the test results are accurate and rigorous, the arrester handover test will be arranged to be completed in a normative test hall that meets the requirements of the regulations. In order to ensure a sufficient safety distance for the test, the applicant innovatively used hoisting equipment such as high trucks to...
Claims
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IPC IPC(8): G01R1/04
CPCG01R1/0416
Inventor 魏振孙昭昌吴寿山张珂张倩张忠涛刘杰史蕾玚曹晓华
Owner STATE GRID SHANDONG ELECTRIC POWER