Insulator fault indicator
A technology of fault indicators and insulators, which is applied in the direction of instruments, measuring devices, measuring electricity, etc., to achieve the effect of improving maintenance efficiency
Inactive Publication Date: 2017-05-31
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Problems solved by technology
But how to find faulty insulators that need to be replaced among a large number of insulators has always been a thorny problem faced by engineers
Method used
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Embodiment Construction
[0012] In order to better understand the technical solution of the present invention, it will be described in detail below through specific embodiments in conjunction with the accompanying drawings:
[0013] see figure 1 and figure 2 , an insulator fault indicator of the present invention includes a fault indicator housing 1, and a current mutual induction coil 2, a large current protection circuit 3, a signal indicating circuit and a signal indicator arranged in the fault indicator housing 1. In this embodiment, the signal indicating circuit is the detonating circuit 4 , the signal indicator is the electric squib 5 , and the electric squib 5 is arranged on the side wall of the fault indicator housing 1 . A connecting hole is opened on the fault indicator housing 1 , and the fault indicator housing 1 is sleeved on the lower connecting shaft of the insulator 7 . The current mutual induction coil 2 is sleeved outside the ground wire 71 of the insulator 7, and the current mutu...
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The invention discloses an insulator fault indicator which comprises a fault indicator shell and a current mutual inductance coil, a large-current protection circuit, a signal indicating circuit and a signal indicator which are arranged in the fault indicator shell. A connecting hole is formed in the fault indicator shell, and the fault indicator shell sleeves a lower connecting shaft of an insulator; the current mutual inductance coil sleeves a ground lead of the insulator from outside, and the current mutual inductance coil, the large-current protection circuit, the signal indicating circuit and the signal indicator are sequentially connected. By the arrangement, when overvoltage formed at two ends of the insulator are punctured, a current transformer detects current of the ground lead of the insulator and sends signals to the signal indicating circuit, the signal indicating circuit controls the signal indicator to send insulator fault information to the outside, manual intervention is not needed, the entire process is automatically performed, the fault insulator can be found by engineering maintenance personnel conveniently and replaced, and maintenance efficiency is greatly improved.
Description
technical field [0001] The invention relates to an insulator fault indicator used in the field of electric power engineering. Background technique [0002] The insulator is a special insulation control, used to support and fix the busbar and the live conductor, and to make a sufficient distance and mutual insulation between the live conductors or between the conductor and the earth, and it plays an important role in the overhead transmission line. When dirt such as floating dust adheres to the surface of the insulator, or due to process defects, material aging, or encountering lightning strikes, an overvoltage will be formed at both ends of the insulator, causing the insulator to break down, and the broken down insulator needs to be replaced. But how to find faulty insulators that need to be replaced among a large number of insulators has always been a thorny problem faced by engineers. Contents of the invention [0003] The object of the present invention is to overcome ...
Claims
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IPC IPC(8): G01R31/12
CPCG01R31/1245
Inventor 李轶徐志轶庄晟谢伟陈勇吴健成沈峰吴才彪高宇辉张成吴晓旭沈辉李建宁鲁志豪
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO