Cable fault simulation and location system

A cable fault and fault location technology, applied to the fault location, using the pulse reflection method to detect faults, teaching models, etc., can solve the problems of waste of manpower, material resources, bad social impact, and difficulty in finding, and achieve reliable work, easy portability, Ease of use

Active Publication Date: 2010-04-28
CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Power cables (hereinafter referred to as cables) are mostly buried underground. Once a fault occurs, it is very difficult to find it. It often

Method used

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  • Cable fault simulation and location system
  • Cable fault simulation and location system
  • Cable fault simulation and location system

Examples

Experimental program
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Example Embodiment

[0021] see Figure 1-9 , The cable fault simulation and fault location system of this embodiment includes: a cable fault simulation box set on the concrete foundation 2, an electrode mounting plate 5 set in the cable fault simulation box 1, and an electrode mounting plate 5 set on the Three incoming electrodes 6 and three outgoing electrodes 7; the three incoming electrodes 6 are respectively connected to the three-phase core of the incoming cable 8, and the three outgoing electrodes 7 are respectively connected to the three-phase core of the outgoing cable 9 . The reinforced concrete foundation 2 and the cable fault simulation box 1 are fixedly connected by foundations and expansion bolts. The cable fault simulation box 1 is provided with threading pipes 3 on both sides of the bottom, the cable fault simulation box 1 has an opening 4 in the center of the bottom, and the front face of the cable fault simulation box 1 is provided with a double door 14.

[0022] The outer shields...

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Abstract

The invention relates to a cable fault simulation and location system, which comprises a cable fault simulation case, an electrode mounting plate arranged in the cable fault simulation case, three incoming line electrodes and three outgoing line electrodes, wherein the three incoming line electrodes are connected with a three-phase wire core in an incoming line cable respectively; the three outgoing line electrodes are connected with a three-phase wire core in an outgoing line cable respectively; a resistance box for simulating disconnection faults, low-resistance faults, high-resistance faults and flashover faults between the incoming line electrodes and the outgoing line electrodes is arranged in the cable fault simulation case; the tail end of the outgoing line cable connected with the outgoing line electrodes is provided with a high-voltage cable terminal; and the high-voltage cable terminal is used for connecting a cable fault location detector. The cable fault location detector comprises a central control unit, an impulse transmission circuit for transmitting impulse signals to a tested cable, a reflection receiving circuit for receiving reflected signals from the tested cable and a high-speed data acquisition circuit, wherein an output end of the reflection receiving circuit is connected with an input end of the high-speed data acquisition circuit.

Description

technical field [0001] 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 [0002] 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 the embedment environment are more complicated and varied. Testers should be familiar with the cable burial direction and environment, accurately determine the nature of the cable fault, select appropriate instruments and measurement methods, and work in acc...

Claims

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Application Information

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IPC IPC(8): G09B23/18G01R31/11
Inventor 余涛朱辉严顺许箴
Owner CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
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