Cable conductor DC resistance testing device
A technology for DC resistance testing and cable conductors, applied in measuring devices, measuring resistance/reactance/impedance, measuring electrical variables, etc., can solve the problems of measuring fixtures to reduce test efficiency, achieve fast and convenient measurement, reduce labor intensity, and improve work efficiency effect
Pending Publication Date: 2020-12-11
CHINA ELECTRIC POWER RES INST
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Problems solved by technology
[0003] In view of this, the present invention proposes a cable conductor DC resistance test device, which aims to solve the problem that the measurement fixture in the prior art is easy to reduce the test efficiency
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[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0022] see Figure 1 to Figure 5 , the figure shows the preferred structure of the cable conductor DC resistance testing device provided by the embodiment of...
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The invention provides a cable conductor direct-current resistance testing device. The device comprises two current electrode devices and at least two potential electrode devices, wherein the two current electrode devices are detachably arranged at the two end parts of the cable conductor in a one-to-one correspondence manner respectively, and the two current electrode devices are used for being connected with external equipment and providing current for the cable conductor to form a current loop; the potential electrode devices are detachably arranged on the cable conductor at intervals, andeach potential electrode device is used for detecting the potential of the cable conductor. According to the invention, the two current electrode devices provide current for the cable conductor and form a current loop, each potential electrode device detects the potential of the cable conductor, and the direct-current resistance of the cable conductor can be calculated according to the current andthe potential, so that the test accuracy is effectively improved, the measurement is rapid and convenient, and the work efficiency of the test is improved; and the device can be repeatedly used, meanwhile, a large size does not need to be set, so that the device is convenient to move and carry.
Description
technical field [0001] The invention relates to the technical field of cable detection, in particular to a device for testing the DC resistance of a cable conductor. Background technique [0002] With the rapid development of the country's economic construction, the demand for electricity continues to increase, and the demand for high-voltage and ultra-high-voltage power cables with large cross-sections is increasing. The large-section conductor for transmitting electric energy is twisted and compressed into strands by single wires, and the strands are twisted and compressed into a circle. When performing conductor DC resistance detection on cross-linked insulated cables with large cross-sections, a measuring fixture is required to clamp the conductors of cross-linked insulated cables with large cross-sections. The traditional measurement fixture uses a high-conductivity copper block. The fixture includes two arc-shaped clamps. The conductor is sandwiched between the two ar...
Claims
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CPCG01R27/02
Inventor 付超邓先生应斯伍罡袁田王琦王欣盛张锦龚宇佳方睿杨国泰魏志雄黄小华张春龙姚艺新张国兵田园
Owner CHINA ELECTRIC POWER RES INST