Characteristics of fiber optic temperature measurement system for cable joints in ring main unit

1. Ensure optimal isolation between primary and secondary power sources, ensure linearity, and during use, the fluorescent material can directly measure the contact temperature, which can improve the temperature measurement accuracy of cable joints.

2. The probe of the fluorescent fiber optic temperature sensor directly contacts the cable contact, which has high accuracy in measuring the contact. It can solve the current problems of indirect temperature measurement of cable joints, such as large errors and large impacts in infrared temperature measurement and wireless temperature measurement devices. The integrated temperature sensor and fluorescent fiber optic have a service life of 20 years. It belongs to maintenance free equipment and can be optically isolated from the outside world. It is generally located at one end of the optical fiber and can seamlessly connect the transmission fiber, allowing for heat exchange with the outside world.

3. Strong resistance to pressure, impact, vibration, and electromagnetic interference, with good transmission quality.

4. Fiber optic cables are lightweight and have a smaller volume, requiring less maintenance investment in the later stage. They do not require power outage during maintenance and can achieve multi-channel transmission.

5. The data information collected by the system can be uploaded using FTU, GPRS, or communication management units inside the substation to achieve online scheduling. The transmission method should be selected reasonably based on the on-site environment.

6. The system can measure temperature in real time online, and abnormal alarms will be triggered if the temperature changes, which can timely detect hidden dangers and prevent accidents from occurring.

7. The system installation is simple, convenient, reliable, and safe to operate.

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