Fiber optic temperature sensor, Intelligent monitoring system, Distributed fiber optic manufacturer in China
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Power equipment will generate heat during normal operation. Due to environmental factors, processing technology, and other factors, the connection of circuits, equipment, etc. may not be tightly pressed, the pressure may not be sufficient, and the contact between contacts may change, resulting in an increase in contact resistance and a more pronounced heating phenomenon. Long term exposure to this will accelerate the aging of power equipment lines, leading to a decrease in insulation performance of power equipment. In severe cases, it can also trigger arc short circuits, reduce the service life of equipment, and cause major power accidents. Especially in the dynamic and static contact parts of the isolation switch, the main transformer lead, and the cable head, the phenomenon of overheating is more prominent, with a high failure rate, and such problems occur every year. At present, monitoring methods still rely on regular completion by staff, which is time-consuming, labor-intensive, extremely inefficient, and cannot be reached.
Fiber optic sensing technology is a new technology developed in recent years, which is a new concept of sensing technology derived from the development of optical fibers and fiber optic communication technology. Fiber optic sensors detect and measure changes in external physical quantities by analyzing the wavelength of light. As a new member of the sensor family, fiber optic sensors have the following obvious advantages:
1) Anti electromagnetic interference, electrical insulation, corrosion resistance, and good safety. A pair of electrical insulation, suitable for high voltage places;
2) High sensitivity, high temperature accuracy, long service life, and comprehensive performance superior to existing monitoring methods:
3) Lightweight, small in size, flexible, suitable for narrow spaces;
4) The measurement object is wide and has little impact on the measured medium;
5) Easy to network and achieve multi range temperature measurement.
The following product information is an online introduction and does not represent the latest product model standards of our company. Please contact us for detailed product prices
Design objectives of fiber optic temperature measurement system
The fiber optic temperature measurement system must meet the following requirements:
1. Real time detection of switchgear contact temperature
2. Accurately locate the abnormal temperature address of the switchgear;
3. The fiber optic temperature measurement system should be able to timely and accurately detect the three-phase cable heads A, B, and C in the switchgear; A, B, C
4. Three phase static contact; The real-time temperature of the internal environment of the switchgear can be detected, and the temperature abnormal alarm signal can be transmitted to the existing fire controller in the instrument control room through the fiber optic temperature measurement host. The alarm can be displayed on the industrial control computer in the fire duty room, and information can also be sent to relevant personnel via mobile phone SMS.
Application fields of fiber optic temperature measurement systems:
Electricity industry
Surface temperature detection and monitoring of power cables, as well as location of accident points,
Fire monitoring of cable tunnels and interlayers
Temperature monitoring, fault point detection, and fire alarm for power plants and substations
Water conservancy, civil engineering and construction industry
Monitoring of leakage from dams, river embankments, and cracking of bridges and other concrete structures
Temperature and strain monitoring of concrete solidification and protection on dams, river embankments, and bridge drives
Structural health monitoring of large-scale civil engineering projects
Fire monitoring and alarm for tunnels, subways, and highways in the highway and subway tunnel industry
The oil and gas industry
Leakage monitoring of oil and gas transmission pipelines or storage tanks
Temperature monitoring and fault detection of oil depots, pipelines, and tanks
