Online monitoring system and method of temperature rise of cable intermediate joint based on temperature difference method
A technology for cable intermediate joints and monitoring systems, which is applied to the parts of thermometers, thermometers, and heat measurement, etc. It can solve the problems of difficulty in timely discovery of equipment safety hazards, poor real-time performance, waste monitoring reliability, etc., and achieve online monitoring of temperature rise Function, easy repair effect
Inactive Publication Date: 2018-02-16
STATE GRID ZHEJIANG JIASHAN POWER SUPPLY CO LTD +3
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Problems solved by technology
[0006] The invention mainly solves the waste of manpower, material resources and financial resources in the traditional manual inspection method of cable joints in the prior art, and the monitoring reliability is low, the real-time performance is poor, and it is difficult to find potential safety hazards of equipment in time, and a cable based on the temperature difference method is provided. The on-line monitoring device and method for the temperature rise of the intermediate joint can accurately obtain the temperature of the cable joint and monitor it in real time to ensure the healthy and safe operation of the cable
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Embodiment
[0040]This embodiment is an online monitoring system for the temperature rise of the cable intermediate joint 4 based on the temperature difference method, such as figure 2 As shown, the structure diagram of the centralized measurement module of the system device of the present invention includes a temperature sensing module, a button circuit 7, a microprocessor circuit 9, a power circuit 8, a smoke sensor 10, a water level sensor 11, an attitude sensor 14, a communication interface 12, a display Circuit 15, address selection circuit 16, client 13; wherein the temperature sensing module includes temperature sensor 1 at point 1, temperature sensor 2 at point 2, temperature sensor 3 at point 3, ambient temperature sensor 6, temperature sensor at point 1, The output ends of the second point temperature sensor, the third point temperature sensor, and the ambient temperature sensor are respectively connected to the I / O port of the microprocessor circuit; the output end of the butto...
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The invention relates to an online monitoring system and method thereof of the temperature rise of a cable intermediate joint, and mainly solves the problems of a waste of human, material and financial resources, low reliability of monitoring, poor real-time performance and difficulty in discovering potential safety hazards of equipment in time by the traditional manual inspection method of a cable joint in the prior art. A device comprises a temperature sensing module, a microprocessor and a power supply circuit, and whether the temperature rise is abnormal or not is determined through the screening of the detected temperature and the deviation calculation with an ambient temperature value. According to the invention, the temperature of a cable joint can be obtained accurately and monitored in real time and the healthy and safe operation of the cable is ensured.
Description
technical field [0001] The invention relates to the field of electric equipment, in particular to an on-line monitoring system and method for the temperature rise of a cable intermediate joint. Background technique [0002] Due to the influence of production quality, installation quality, running time, frequency of use and working environment of power equipment, the contact at the installation place is unreliable, and the temperature rise exceeds the allowable range stipulated by the state, which makes the cable terminal insulation aging and even breakdown damage. as a result of. The temperature of the middle joint of the power cable is an important parameter reflecting its operating state. The direct cause of the temperature rise of the cable joint is the long running time of the joint, the crimping joint is not tight, and the contact resistance is too large. The phenomenon of overheating and burning through the insulation caused by the long-term operation of the joint is...
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Login to View More IPC IPC(8): G01K1/02G01K1/022G01K1/024
CPCG01K1/024
Inventor 曲凯胡晟黄宏盛马学裕顾祝晨杨柳王欣徐海钢曹斌
Owner STATE GRID ZHEJIANG JIASHAN POWER SUPPLY CO LTD