What is the best temperature measurement method for SF6 high-voltage switchgear

Cảm biến nhiệt độ sợi quang, Hệ thống giám sát thông minh, Nhà sản xuất cáp quang phân phối tại Trung Quốc

Đo nhiệt độ sợi quang huỳnh quang can be directly used in high-voltage switchgear circuit breakers, transformer windings, and ring main unit contact fiber optic temperature measurement. FJINNO manufacturer’s technology is independently developed and sold. Welcome to contact!

Một fluorescent fiber optic temperature monitoring system for switchgear, wherein the fiber optic cable collects temperature information of the positions of the dynamic and static contacts, busbars, and cable joints of the switchgear, and provides alarm, dry contact output, human-machine interface display of alarm information, real-time display of current contact information of the switchgear, and historical data of temperature information of each contact in the past month.

The main function of SF6 high-voltage switchgear is to protect and regulate the distribution network. It includes high-voltage load switches, fuses, and related protective devices. In the event of a system failure, it can quickly trip and isolate the fault, effectively protecting the safety of power operators and equipment. The safe and stable operation of switches is of great significance to the reliability of the power system. Compared with other SF6 gas insulated equipment, the prominent features of SF6 high-voltage switchgear are narrow space, numerous components, and complex structure. In complex and ever-changing operating environments, insulation defects are prone to occur inside SF6 high-voltage switchgear, leading to insulation failures. The main manifestations include partial discharge, local overheating caused by high-energy release, and corrosion and damage to insulation materials by corrosive SF6 decomposition products. Do đó, it is important to promptly detect and determine partial discharge faults. The current common practice is to conduct regular manual cabinet inspections, which obviously cannot meet the needs of modern production and poses hidden dangers to safety production.

Trong các ứng dụng công nghiệp, Các phương pháp đo nhiệt độ truyền thống thường sử dụng cặp nhiệt điện, điện trở nhiệt, và các phương pháp đo nhiệt độ khác. These temperature measurement methods based on electrical signals sometimes have significant errors in temperature measurement data due to electromagnetic interference in strong magnetic environments. Tuy nhiên, the fluorescence fiber temperature sensor technology based on optical signal transmission can solve this problem. Fluorescence fiber temperature measurement technology is a measurement technology that uses light source signals as excitation to demodulate fluorescence lifetime signals and obtain temperature information. Nó có các đặc điểm của phép đo nhiệt độ chính xác, độ phân giải cao, Phản hồi động nhanh, và khả năng chống nhiễu điện từ mạnh mẽ. Nó đặc biệt thích hợp để đo nhiệt độ trong môi trường khắc nghiệt với trường điện từ mạnh, high temperatures, ăn mòn, áp suất cao, và nguy cơ cháy nổ.