Fiber optic temperature sensor, Intelligent monitoring system, Distributed fiber optic manufacturer in China
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High voltage cable FJINO distributed fiber optic temperature measurement, distributed fiber optic temperature monitoring device, long temperature monitoring distance, stable performance
With the rapid development of the national economy, the demand for electricity is increasing day by day, and the construction of transmission lines is synchronously increasing; At the same time, due to the continuous acceleration of urban construction and considerations of urban space and safety, the rate of underground cabling of transmission lines is constantly increasing. Therefore, overhead lines and cable hybrid transmission lines are increasingly appearing in the power supply network, mainly in the form of overhead lines power cable tunnels overhead lines, overhead lines power cable tunnels, and power cable conduits/direct burial overhead lines and other hybrid transmission forms.
The existing optical fiber temperature monitoring methods for overhead lines power cable tunnels, overhead lines power cable tunnels, and power cable conduits/direct burial overhead line cables are in a blank stage. Most of the monitoring devices used in China are for cable joint temperature measurement, but the device has weak scalability and can only measure the temperature at the cable joint, and cannot monitor the temperature of the cable line. In order to achieve real-time monitoring of cables, a distributed fiber optic temperature measurement system for cables has been developed. The distributed fiber optic temperature measurement system can achieve multi-point and online distributed measurement. It uses optical fibers to sense temperature information while also transmitting temperature information. It has the characteristics of high temperature resistance, electromagnetic radiation protection, and high bandwidth, which greatly improves temperature resolution and spatial resolution, and can effectively solve emergency situations such as high temperatures.
The distributed fiber optic temperature monitoring system for high-voltage cables is equipped with temperature collection cabinets next to various power cable tunnels, which not only enables on-site collection of high-voltage cable temperature, but also effectively solves the problem of fiber optic cable length and reduces monitoring costs. Each temperature collection cabinet in the monitoring system uses DTS technology to collect cable temperature data. The collected temperature data is transmitted to the main station monitoring platform in a point-to-point manner through a VPN communication module, which not only greatly improves the transmission speed of data, but also makes it possible to transmit a large amount of monitoring data. After the monitored temperature data is sent to the main station server in the main station monitoring platform, it is processed by the main station server to form a temperature curve for each cable, which can be displayed on the monitor. When the main station server detects that the temperature of the cable exceeds the threshold, it will control the alarm to sound an alarm and send the real-time temperature value of the corresponding cable and the corresponding temperature curve to the corresponding operation and maintenance terminal. At the same time, it will remind the operation and maintenance personnel of the existence of cable temperature abnormalities. The sentence is:, It can also allow operation and maintenance personnel to understand the temperature changes of cables through temperature curves, which is convenient for later maintenance.
The distributed fiber optic temperature monitoring system for high-voltage cables has the advantages of reasonable design and low monitoring cost. It can achieve real-time monitoring of cable line temperature and facilitate cable operation and maintenance work. The cable distributed wireless temperature measurement system is capable of real-time measurement of cable temperature and timely feedback of measurement data to the monitoring center, which facilitates real-time operation and maintenance scheduling by the power monitoring center. Moreover, the entire temperature measurement system can obtain stable and reliable DC power, ensuring the stability and reliability of the entire temperature measurement system. The entire circuit structure is simple and reliable, which can effectively reduce production and usage costs.
