High voltage cable state monitoring system based on direct grounding box and realization method thereof

A condition monitoring system and high-voltage cable technology, which is applied in signal transmission systems, measuring electronics, measuring devices, etc., can solve problems such as unfixed installation positions, complex detection methods, and difficult analysis, so as to improve power supply reliability and maintenance Efficiency, the effect of improving operating efficiency

Inactive Publication Date: 2016-08-31
石家庄开发区中实检测设备有限公司
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AI Technical Summary

Problems solved by technology

[0004] At present, offline and online detection of partial discharge of high-voltage cables and monitoring of the operating environment are carried out in many places. Most of these devices or instruments are installed outside the switch cabinet or grounding box, and the installation position cannot be fixed. With the extension of time and changes in field equipm

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  • High voltage cable state monitoring system based on direct grounding box and realization method thereof
  • High voltage cable state monitoring system based on direct grounding box and realization method thereof
  • High voltage cable state monitoring system based on direct grounding box and realization method thereof

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Embodiment Construction

[0047] Depend on Figure 1-9 It can be seen from the illustrated embodiment that the high-voltage cable condition monitoring system based on the direct grounding box includes a high-frequency current partial discharge acquisition unit, an ultrasonic partial discharge acquisition unit for cable intermediate joints, an optical fiber temperature measurement unit for cable intermediate joints, a gas detection unit, and an ambient temperature monitoring unit. Humidity detection unit, water level alarm unit, ARM processor, wireless GPRS module and remote monitoring master station;

[0048] The high-frequency current partial discharge acquisition unit includes a high-frequency current transformer, a frequency measurement circuit, a signal strength measurement circuit, and a current acquisition circuit; Cable sheath grounding wire; the input ends of the frequency measurement circuit, the signal strength measurement circuit and the current acquisition circuit are respectively connected t...

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Abstract

The invention discloses a high voltage cable state monitoring system based on a direct grounding box and a realization method thereof. The monitoring system comprises a high frequency current partial discharge acquisition unit, a cable intermediate joint ultrasonic wave local discharge acquisition unit, a cable intermediate joint optical fiber temperature measuring unit, a gas detection unit, an environment temperature and humidity detection unit, a water level alarm unit, an ARM processor unit, a wireless GPRS module and a remote monitoring main station. A monitoring method comprises steps of reading monitoring data and carrying out determination and alarm on the monitoring data. By using the system and the method of the invention, the monitoring data can be assessed and diagnosed; resources are greatly saved and operation efficiency is increased.

Description

technical field [0001] The invention relates to a high-voltage cable state monitoring system based on a direct grounding box and a realization method thereof. Background technique [0002] With the development of the city and the increase of electricity consumption, the phenomenon of high-voltage cable failure occurs from time to time. In most cases, the operating environment of the equipment is harsh and unattended. It is not easy to be found after a partial failure of the cable, and the spread of the accident will cause a major accident. It will affect normal production and cause economic and reputational losses to power companies. Therefore, preventing accidents has become the foundation of safe production. In recent years, online monitoring of the running state of high-voltage cables has been carried out in the world to avoid the occurrence of cable running accidents by discovering hidden defects in advance. The incidence of electrical accidents. [0003] The high-volt...

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Application Information

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IPC IPC(8): G01D21/02G01R31/12G01R31/08G01R31/02G08C17/02
CPCG01D21/02G01R31/083G01R31/1209G01R31/1272G01R31/58G08C17/02
Inventor 冯永建谭更民李叔男
Owner 石家庄开发区中实检测设备有限公司
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