Cable fault simulating and positioning system

Abstract

The invention relates to a cable fault simulating and positioning system. The cable fault simulating and positioning system comprises a cable fault simulating box, an electrode installing plate, three wire inlet electrodes and three wire outlet electrodes, wherein the electrode installing plate, the three wire inlet electrodes and the three wire outlet electrodes are arranged in the cable fault simulating box. The three wire inlet electrodes are respectively connected with a three-phase cable core in a wire inlet cable, and the three wire outlet electrodes are respectively connected with a three-phase cable core in a first wire outlet cable; a resistance box is arranged in the cable fault simulating box and used for simulating disconnection, low-resistance, high-resistance and flashover faults between the wire inlet electrodes and the wire outlet electrodes, the tail end of a second wire outlet cable connected with the wire outlet electrodes is provided with a high-voltage cable terminal, and the high-voltage cable terminal is used for being connected with a cable fault positioning detector. The cable fault positioning detector comprises a central control unit, an impulse emitting circuit, a reflection receiving circuit and a high-speed data collecting circuit, the impulse emitting circuit is used for emitting impulse signals to a detected cable, the reflection receiving circuit is used for receiving reflection signals from the detected cable, and the output end of the reflection receiving circuit is connected with the input end of the high-speed data collecting circuit.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 200910309789.8, the invention name is "Cable Fault Simulation and Fault Location System", and the application date is: November 16, 2009. technical field [0002] The invention relates to the technical field of cable fault simulation equipment for personnel training, in particular to a cable fault simulation and fault location system for personnel training. Background technique [0003] Power cables (hereinafter referred to as cables) are mostly buried underground. Once a fault occurs, it is very difficult to find it. It often takes hours or even days, which not only wastes a lot of manpower and material resources, but also causes a lot of power loss and bad social impact. How to accurately, quickly and economically find the cable fault point has become a problem that the power supply department pays more and more attention to. The cable fault situation and t...

AI Technical Summary

Problems solved by technology

[0003] Power cables (hereinafter referred to as cables) are mostly buried underground. Once a fault occurs, it is very difficult to find it. It often takes hours or even days, which not only wastes a lot of manpower and material resources, but also causes a lot of power loss and bad social impact

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