Cable joint health diagnosis and heat fault pre-warning system

A cable joint and early warning system technology, which is applied in the direction of measuring heat, thermometer components, measuring devices, etc., to achieve health diagnosis and fault early warning, reduce economic losses, and improve sensitivity and accuracy.

Inactive Publication Date: 2015-04-29
HARBIN UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a protection and early warning system with simple structure, low cost, and sensitive and accurate action for the current thermal failure problems such as heating or

Method used

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  • Cable joint health diagnosis and heat fault pre-warning system

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] figure 1 Among them, the system consists of measurement control module (1), communication module (2), display module (3), alarm module (4), temperature sensor (5), humidity sensor (6), gas sensor (7), stress A sensor (8), an ambient temperature sensor (10), an ambient humidity sensor (11), and a control center network server (12) constitute.

[0030]The temperature sensor (5) measures the temperature inside the cable joint, and sends the data to the measurement control module (1), and calculates and analyzes the time length, times, and ratio of the temperature exceeding the set limit value to the unit operating time. When the ratio exceeds After setting the safe value, judge whether the cable joint is in an unhealthy operating state.

[0031] The humidity sensor (6) measures the humidity inside the cable joint, and sends the data to the measurement c...

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Abstract

The invention provides a cable joint health diagnosis and heat fault pre-warning system. The system comprises a measurement control module, a communication module, a display module, an alarming module, a temperature sensor, a humidity sensor, a gas sensor, a stress sensor, a hoop metal strap, an environmental temperature sensor, an environmental humidity sensor and a control center network server. The different sensors are combined for online monitoring of cable joints, and by a manner different from an existing manner of alarming after occurrence of faults, unhealthy statuses and operation environments of the cable joints are measured and analyzed, such as temperature, humidity, gas, smoke, expansion, breathability, environmental temperature, environmental humidity and the like, and consequently low cost is guaranteed while sensitivity and accuracy of the pre-warning system are greatly improved. Therefore, health diagnosis and heat fault pre-warning of the cable joints are realized to effectively take preventive measures, reliability in operation of the cable joints and even an electric power system is improved, cable joint fault treatment time is shortened, and economic loss caused by faults of the cable joints is greatly reduced.

Description

technical field [0001] The invention relates to a cable joint protection device, in particular to a cable joint health diagnosis and thermal fault early warning system. Background technique [0002] Cable joints heat up and even explode, which is a common fault in power production and operation. It will not only cause a large amount of power loss, but also seriously affect the normal operation of electrical equipment. It will cause insulation breakdown, form a short circuit, cause an explosion, cause a fire, cause equipment damage, interrupt ongoing production, scientific research, medical operations and other activities, causing incalculable losses. [0003] The main reasons for the heating or explosion of cable joints include the following aspects. (1) Mechanical damage: due to poor urban construction management and poor construction, accounting for about 50% of cable accidents; (2) lead package fatigue, cracks, and swelling: this is due to poor cable installation conditi...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01K1/02G01K1/024
Inventor 周封郝婷刘健王丙全王晨光崔博闻刘小可吕金贵
Owner HARBIN UNIV OF SCI & TECH
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