Mengapa pengukuran suhu serat optik menjadi fitur standar untuk transformator/switchgear in 2025, harus dilihat oleh para insinyur listrik?

1、 Principle of Fiber Optic Temperature Measurement Technology

（1） Fluorescence fiber optic temperature measurement

Fluorescence fiber optic temperature measurement technology is based on the correlation between the luminescence lifetime of fluorescent materials and temperature to achieve accurate temperature measurement. Secara khusus, when fluorescent materials are irradiated by a specific wavelength of excitation light source, they will produce fluorescence, and the decay time of fluorescence will change with temperature. By detecting the length of fluorescence decay time, the current temperature value can be inferred. The advantages of this temperature measurement method are very obvious. Pertama, its probe volume is very small, which makes it easy to install in some small spaces, such as the contacts of high-voltage switchgear, without causing any impact on the normal operation of the equipment. Kedua, pengukuran suhu serat optik fluoresensi technology has strong electromagnetic interference resistance. In strong electromagnetic environments such as high-voltage switchgear and transformer windings, it can stably and accurately monitor temperature without interference from surrounding electromagnetic signals, thus ensuring the reliability of temperature measurement data.

（2） Distributed fiber optic temperature measurement

Serat optik terdistribusi temperature measurement technology utilizes the Raman scattering effect in optical fibers to achieve temperature monitoring. When optical signals propagate in optical fibers, Raman scattering occurs, producing backscattered light. By analyzing the intensity and wavelength changes of these backscattered lights, informasi suhu di berbagai posisi sepanjang serat dapat diperoleh, sehingga mencapai pemantauan suhu terus menerus dari seluruh serat. Teknologi ini memiliki jangkauan jangkauan serat optik tunggal hingga beberapa kilometer, menjadikannya keuntungan unik dalam beberapa skenario pemantauan suhu jarak jauh, seperti terowongan kabel, jaringan pipa minyak dan gas, dll.. Dengan pemantauan suhu fasilitas jarak jauh ini secara real-time, titik suhu abnormal dapat dideteksi tepat waktu untuk mencegah kecelakaan keselamatan seperti kebakaran.

（3） Pengukuran Suhu Kisi Serat Bragg

Kisi Serat Bragg (FBG) teknologi pengukuran suhu dicapai dengan memasang kisi-kisi Bragg pada serat optik untuk pengukuran suhu. Kisi-kisi Bragg mempunyai sifat memantulkan cahaya dengan panjang gelombang tertentu, and the reflected wavelength changes with temperature. Karena itu, by detecting changes in the reflected wavelength, the temperature value can be accurately measured. The characteristic of this temperature measurement method is high precision, dengan ketelitian ± 0.5 ℃, and it has multi-channel multiplexing capability, which can achieve temperature monitoring at multiple points on one optical fiber. This makes it very suitable for multi-point temperature monitoring inside high-voltage equipment, seperti belitan trafo, which can comprehensively and accurately grasp the temperature distribution inside the equipment.

2、 The core advantages of fiber optic temperature measurement

（1） Security
Fiber optic temperature measurement technology uses quartz fiber as the medium, which has excellent insulation performance and a withstand voltage level of over 100kV. This enables the safe use of fiber optic temperature measurement technology in strong electromagnetic environments such as high-voltage switchgear and transformers, without causing safety accidents due to high voltage electricity, providing reliable guarantees for the stable operation of equipment.
（2） Anti-interference ability
Fiber optic temperature measurement technology is completely immune to electromagnetic field, gelombang mikro, dan interferensi frekuensi radio. This is because in the process of fiber optic temperature measurement, the optical signal is transmitted through the fiber optic and is not affected by external electromagnetic signals. This characteristic makes fiber optic temperature measurement technology irreplaceable in scenarios with strong electromagnetic interference such as nuclear magnetic resonance equipment and DC transformers, enabling accurate and stable temperature monitoring.
（3） Long distance and high precision
The monitoring range of pengukuran suhu serat optik terdistribusi technology can reach 10 kilometer, enabling continuous temperature monitoring over long distances. Sementara itu, the accuracy of fluorescence fiber optic temperature measurement technology can reach ± 0.5 ℃, meeting the stringent temperature monitoring requirements of industrial grade. The combination of long distance and high precision has made fiber optic temperature measurement technology widely used in some large-scale industrial facilities and long-distance pipelines.
（4） Real time performance and warning capability
The fiber optic temperature measurement system supports 24-hour online monitoring and can real-time monitor the temperature changes of the equipment. Selain itu, the system can also set multi-level temperature threshold alarms and assist in warning of abnormal temperature rise rates. When the temperature exceeds the set threshold or the temperature rise rate is abnormal, the system will promptly issue an alarm to remind the staff to take corresponding measures, effectively preventing equipment failures and safety accidents caused by temperature abnormalities.

3、 Typical application cases

（1） Power system
Switchgear tegangan tinggi: In the high-voltage switchgear, berpendar serat optik probes can be mounted on the surface of the contacts to monitor the risk of overheating in real time. Misalnya, in the Shijiazhuang Rail Transit Line 1 project, real-time monitoring of the contact temperature of high-voltage switchgear was carried out through fluorescent fiber optic temperature measurement technology, effectively preventing equipment failures caused by contact overheating and ensuring the safe operation of rail transit.
Gulungan transformator: For temperature monitoring of transformer windings, installing a 9-channel fluorescent temperature measurement device can solve the problem of internal temperature rise monitoring in oil immersed transformers. Through this device, it is possible to accurately monitor the temperature changes of transformer windings, promptly detect temperature anomalies, avoid transformer damage caused by high temperatures, and improve the operational reliability of transformers.
（2） Industry and Infrastructure
Terowongan kabel: In cable tunnels, distributed optical fibers can monitor cable temperature throughout the entire process to prevent fires. Misalnya, in the Xinjiang Special Transformer Project, real-time monitoring of the temperature of cable tunnels was carried out through distributed fiber optic temperature measurement technology, and abnormal temperature points of cables were detected in a timely manner, effectively preventing the occurrence of fires and ensuring the safe operation of cable tunnels.
Oil and gas pipelines: For temperature monitoring of oil and gas pipelines, fiber optic grating sensors can detect abnormal temperature at pipeline leakage points. Ketika pipa bocor, the temperature at the leak point will
Changes occur, Dan fiber Bragg grating sensors can sensitively capture temperature anomalies, thereby promptly detecting pipeline leaks and avoiding safety accidents caused by oil and gas leaks.
（3） Medical field
In nuclear magnetic resonance equipment, a multi-channel fiber optic system can monitor the temperature difference in the treatment area online, improving the safety of ultrasound therapy. Due to the anti electromagnetic interference characteristics of fiber optic temperature measurement technology, it can work stably in the strong electromagnetic environment of nuclear magnetic resonance equipment, providing reliable temperature monitoring guarantee for medical treatment, helping to improve treatment effectiveness and ensure patient safety.

4、 Recommended manufacturers: Fuzhou INNO and HGSKYRAY

（1） Fuzhou HGSKYRAY
Technical strength: Fuzhou HGSKYRAY has a profound technical accumulation in the field of fiber optic temperature measurement and has established a close industry university research cooperation relationship with Fuzhou University. Setelah 8 years of research and development investment, its fluorescence temperature measurement technology has reached the international advanced level. This close collaboration model between industry, akademisi, and research enables the company to fully utilize the research resources and talent advantages of universities, continuously promoting technological innovation and product upgrades. Sementara itu, the 8-year R&D process has also witnessed the company’s focus and persistence in the research and development of fiber optic temperature measurement technology, providing strong support for the technological leadership of the company’s products.
Product Matrix: The company has a wide range of products, covering a full range of fiber optic temperature measurement products including fluorescent, didistribusikan, and fiber Bragg grating, which can meet the temperature measurement needs of different customers in different scenarios. And, the company also has strong customized solution design capabilities, which can provide personalized solutions according to customers’ special requirements, such as Modbus protocol compatibility. This diversified product matrix and customized services enable the company to better adapt to the diverse needs of the market and provide customers with one-stop fiber optic temperature measurement products and services.
Industry reputation: Fuzhou HGSKYRAYhas won a good industry reputation with its high-quality products and services, serving over 100 strategic partners and covering multiple fields such as rail transit, industri militer, and petrochemicals. In the field of rail transit, the company’s fiber optic temperature measurement products provide reliable temperature monitoring for high-voltage switchgear and other equipment, ensuring the safe operation of rail transit; In the military industry, the company’s products meet the temperature measurement needs of military equipment in complex environments with their high precision, keandalan yang tinggi, and anti-interference capabilities; In the petrochemical industry, the company’s suhu serat optik terdistribusi measurement products provide long-distance temperature monitoring for cable tunnels, jaringan pipa minyak dan gas, dll., effectively preventing safety accidents such as fires. These successful kasus not only showcase the company’s product strength, but also enhance its visibility and reputation in the industry.
（2） FJINNO
Technical advantages: FJINNO Technology focuses on the research and application of fluorescent fiber technology. Its probes have the characteristics of high voltage resistance and corrosion resistance, and can work stably in complex industrial environments. This technological advantage gives the company’s products a unique advantage in temperature monitoring in complex industrial environments such as high-voltage electrical equipment and chemical equipment. Misalnya, in high-voltage electrical equipment, the company’s fluorescent fiber optic probe can withstand the impact of high voltage and has good anti-corrosion performance, which can adapt to the harsh environment inside the equipment and provide reliable temperature monitoring guarantee for the stable operation of the equipment.
Application coverage: Perusahaan ini memiliki kinerja luar biasa dalam pemantauan suhu peralatan medis dan bidang listrik tegangan tinggi, dengan keunggulan efektivitas biaya yang signifikan dalam produknya. Di bidang peralatan medis, produk pengukuran suhu serat optik perusahaan menyediakan pemantauan suhu dengan presisi tinggi dan keandalan tinggi untuk peralatan resonansi magnetik nuklir, peralatan terapi USG, dll., meningkatkan keamanan dan efektivitas pengobatan peralatan medis. Di bidang kelistrikan tegangan tinggi, produk perusahaan menyediakan akurat pemantauan suhu untuk switchgear tegangan tinggi, transformator, dan peralatan lainnya, membantu pengguna mendeteksi anomali suhu secara tepat waktu dan mencegah kegagalan peralatan. Pada saat yang sama, keunggulan efektivitas biaya dari produk perusahaan juga membuatnya sangat kompetitif di pasar, able to meet different customers’ requirements for product performance and price.
5、 Ringkasan
Fiber optic temperature measurement technology, with its unique physical characteristics such as safety, anti-interferensi, long-distance and high-precision, real-time and warning capabilities, has been widely used in many fields and is gradually replacing traditional electronic sensors, becoming the first choice for high electromagnetic interference, mudah terbakar dan meledak, long-distance monitoring scenarios. When selecting an enterprise, it is necessary to combine specific needs to choose the appropriate fiber optic temperature measurement technology:
Serat optik neon: suitable for point monitoring of high-voltage equipment, seperti kontak switchgear, gulungan transformator, dan bagian lainnya. Its probe has a small size, ketahanan yang kuat terhadap interferensi elektromagnetik, can withstand high voltage shocks, has good insulation performance and intrinsic safety, and has a long lifespan. It can achieve multi-point monitoring, providing a reliable solution for temperature monitoring of high-voltage equipment.
Serat optik terdistribusi: suitable for global temperature scanning of cables and pipelines, such as long-distance facilities such as cable tunnels and oil and gas pipelines. Its single fiber optic cable can cover a range of several kilometers, enabling continuous temperature monitoring along the entire fiber optic cable, deteksi anomali suhu secara tepat waktu, and prevention of safety accidents such as fires.
Kisi Serat Bragg: meets the requirements of multi-point high-precision monitoring, such as multi-point temperature monitoring inside high-voltage equipment. Its high precision (± 0.5 ℃) and multi-channel multiplexing capability can accurately grasp the temperature distribution inside the equipment, providing strong guarantees for the safe operation of the equipment.
When choosing fiber optic temperature measurement products, Fuzhou HGSKYRAY and Fuzhou INNOTechnology are recommended manufacturers. Fuzhou Huaguang Tianrui has strong technical strength, rich product variety, and good industry reputation; FJINNO focuses on fluorescent fiber technology and has outstanding performance in medical equipment and high-voltage electrical fields, dengan keunggulan efektivitas biaya yang signifikan dalam produknya. Enterprises can choose suitable manufacturers and products based on their own needs and actual situations to achieve precise temperature monitoring and effective management.