A low-tension cable temperature pre-warning system

A low-voltage cable, early warning system technology, applied in thermometers, signal transmission systems, thermometer components, etc., can solve the problems of insulator aging, cable failure, etc., to extend the life cycle, reduce maintenance costs, ensure accuracy and comprehensiveness. Effect

Inactive Publication Date: 2015-01-07
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductor is made of metal, commonly used as copper and aluminum, and is relatively not afraid of high temperature, while the insulator is made of organic matter, relatively afraid of high temperature, and the temperature is too high to accelerate the aging of the insulator, resulting in cable failure

Method used

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  • A low-tension cable temperature pre-warning system
  • A low-tension cable temperature pre-warning system
  • A low-tension cable temperature pre-warning system

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Embodiment Construction

[0022] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0023] A low-voltage cable temperature early warning system, which is composed of a wireless temperature acquisition module, a wireless signal receiving module, and an early warning disposal module. Signals are bidirectional between the wireless temperature collection module and the wireless signal receiving module, and between the early warning disposal module and the wireless signal receiving module. connect. The wireless temperature acquisition module is composed of multiple groups, all of which are composed of battery 1, temperature sensor, microcontroller 1, radio frequency device 1 and transmitting antenna 1. The temperature sensor, microcontroller 1 and radio frequency device 1 are all connected to the battery; the output end of the te...

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PUM

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Abstract

The invention relates to a low-tension cable temperature pre-warning system. The pre-warning system is characterized in that: the pre-warning system comprises a plurality of wireless temperature collecting modules, wireless signal receiving modules and a pre-warning processing module; signal double-way connection is set between the wireless temperature collecting modules and the wireless signal receiving modules, as well as between the wireless signal receiving modules and the pre-warning processing module; each of the wireless temperature collecting modules comprises a battery, a temperature sensor, a single chip microcomputer, a radio frequency device and a transmitting antenna; the temperature sensors, the single chip microcomputers and the radio frequency devices are connected to the batteries; the output end of each temperature sensor is connected to the input end of a corresponding single chip microcomputer; the output end of each single chip microcomputer is connected to the input end of a corresponding radio frequency device; and the output end of the radio frequency device is connected to the corresponding transmitting antenna. The pre-warning system can perform on-line real-time monitoring for critical nodes and segments of low-tension cables, can subject hot spots capable of causing accidents to early period detection and diagnosis and take corresponding management measures. The pre-warning system effectively improves power supply continuity and reduces the maintenance cost for manpower inspection tour.

Description

technical field [0001] The invention belongs to the field of power transmission management equipment, in particular to a low-voltage cable temperature early warning system. Background technique [0002] With the development of the times, the number of low-voltage cables of 0.6 / 1KV and below has increased dramatically, and the load of low-voltage cables has increased day by day. The problem of overheating and burning caused by the operation of a large number of low-voltage cables has attracted more and more attention. [0003] According to my country's national wire and cable standards: [0004] XLPE insulated cables are manufactured in accordance with GB / T 12706 and IEC60502-1997 standards. The maximum rated operating temperature of the cable conductor is 90 degrees Celsius, the overload temperature must not exceed 140 degrees Celsius, and the short-circuit temperature is 250 degrees Celsius. It must not last for more than 5 seconds . [0005] At present, according to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/02G01K1/02H02J13/00G01K1/024
CPCY04S10/30Y04S40/126Y02E60/00
Inventor 李秀章张迅刘立岩张泽功徐广泉曹复金
Owner STATE GRID CORP OF CHINA
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