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A ring network cabinet fault detection system

A technology for fault detection and ring network cabinets, which is applied in the directions of measuring electricity, measuring devices, and measuring heat, etc. It can solve the problems that the faults of the cable terminal joints of the ring network cabinet cannot be detected in real time, and achieve the effect of ensuring normal operation

Active Publication Date: 2022-06-24
STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A ring network cabinet fault detection system proposed by the present invention aims to solve the problem that the existing technology cannot detect the fault of the cable terminal joint of the ring network cabinet in real time

Method used

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  • A ring network cabinet fault detection system
  • A ring network cabinet fault detection system
  • A ring network cabinet fault detection system

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Experimental program
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Embodiment

[0064] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0065] like figure 1 As shown, a fault monitoring system for a ring main unit includes a partial discharge monitoring system, a wireless temperature measurement system, and a fault analysis system.

[0066] The PD monitoring system includes several PD monitoring devices and a PD information collection device.

[0067] like figure 2 As shown, the PD monitoring device includes a signal input interface, a signal conditioning circuit, AD sampling, a CPU, a power supply control circuit, and a communication control circuit.

[0068] The signal input interface generally adopts BNC interface or SMA interface, which has good transmission effect and noise shielding effect on high-frequency partial discharge signals; the signal conditioning circuit includes two parts: signal amplification and signal detection. The original partial discharge signal is generally...

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Abstract

The present invention proposes a ring network cabinet failure detection system, which includes a partial discharge monitoring system, a temperature measurement system, and a fault analysis system; the partial discharge monitoring system includes a partial discharge monitoring device and a partial discharge information collection device, and the temperature measurement system includes The temperature sensor is connected to the temperature acquisition device, the partial discharge monitoring device is connected to the partial discharge information collection device, the temperature sensor is connected to the temperature collection device, and the partial discharge information collection device and the temperature collection device are connected to the fault analysis system respectively. The advantages of the present invention: 1) The present invention has the partial discharge detection function and the temperature detection function of the ring main unit, and can use the fault comprehensive evaluation method to perform fault diagnosis on the ring main unit; 2) The present invention can perform online monitoring on the ring main unit, Monitor the operating status of the ring main unit in real time, discover potential faults and defects, and ensure the normal operation of electrical equipment.

Description

technical field [0001] The invention relates to a fault detection system for a ring network cabinet, belonging to the technical field of on-line monitoring and fault diagnosis of electric power equipment. Background technique [0002] In recent years, the construction of urban power grid cables has been continuously promoted, and a large number of overhead lines have been cancelled and transformed into underground cables, which saves power transmission corridors and beautifies the appearance of the city. Increasingly, in order to ensure safety when the ring main unit is running under power, the hatch must be closed, and the operating status of its internal switches, busbars, cables, cable joints and other components cannot be directly observed and detected from outside the cabinet, resulting in the inability of inspection personnel to intuitively However, the number of ring network cabinets is large, which brings great difficulty to the corresponding operation and maintenanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R31/00G01K13/00
CPCG01R31/1227G01R31/00G01K13/00
Inventor 刘刚邱冬王秀茹韩少华张圆明徐庆仝进陈莎石聪聪韩雪琳
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH
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