The best manufacturer of Transformer Fluorescent Fiber Optic Temperature Control System-INNO

The application of fluorescent fiber optic temperature control systems in transformers enables accurate temperature measurement, effectively avoiding faults caused by excessive temperature and ensuring the stable operation of transformers.

Its market price varies depending on the brand and configuration. For example, the system from FJINNO including various components and services.

The installation process includes determining the installation location, laying optical fibers, connecting equipment, and debugging.

Recommended brands include FJINNO Huaguang Tianrui, as well as well-known foreign brands such as Lumasense and Tecsystem.

In the power system, the stable operation of transformers is crucial, and temperature is a key factor affecting the performance and service life of transformers. The fluorescent fiber optic temperature control system, with its unique advantages, is gradually becoming the preferred solution for transformer temperature monitoring and control. This article will delve into the relevant content of the application of fluorescent fiber optic temperature control systems in transformers, including market prices, installation processes, and recommended brands.

Advantages of Applying Fluorescent Fiber Optic Temperature Control Systems in Transformers

Accurate Measurement

The fluorescent fiber optic temperature control system utilizes the characteristics of fluorescent materials. When light of a specific wavelength irradiates the fluorescent material, the decay time of the emitted fluorescence has a precise corresponding relationship with temperature. By measuring the fluorescence decay time, the temperature of various parts of the transformer can be accurately obtained, with an accuracy of ±1°C or higher, which is extremely critical for timely detection of potential overheating hazards in the transformer.

Anti-Electromagnetic Interference

Transformers operate in a strong electromagnetic environment, and traditional temperature measurement systems are susceptible to electromagnetic interference, leading to measurement errors. The fluorescent fiber optic temperature control system uses optical signals as the transmission medium, and the optical fiber itself has good insulation and anti-electromagnetic interference capabilities, enabling it to work stably in complex electromagnetic environments and ensuring the accuracy and reliability of temperature data.

Excellent High-Voltage Insulation Performance

The quartz material used in fluorescent optical fibers has extremely high insulation performance, with a withstand voltage capacity exceeding 100kV. This allows the sensor to be directly installed on high-voltage windings, iron cores and other parts of the transformer, realizing close-range and direct temperature measurement of key parts without affecting the insulation performance of the transformer.

Long Service Life and Stability

The fluorescent materials and optical fibers in the system have good stability and durability, with a service life of 10-25 years under normal use conditions. Moreover, its measurement performance is not affected by time, environment and other factors, and frequent calibration is not required, which greatly reduces maintenance costs and workload.

Market Price of Transformer Fluorescent Fiber Optic Temperature Control Systems

The price of transformer fluorescent fiber optic temperature control systems varies due to many factors, such as brand, system configuration, number of measurement channels, and optical fiber length. Taking Fuzhou Yingnuo Electronic Technology Co., Ltd. as an example, the price of its transformer fluorescent fiber optic temperature measurement system is 8,000 yuan per set, which includes optical fiber sensors, data acquisition equipment and supporting software. This price not only covers the cost of the equipment itself but also provides technical support and follow-up service guarantees, ensuring that customers can successfully install, debug and operate stably for a long time. It has high cost performance and is suitable for procurement by various levels of power enterprises and transformer manufacturers to improve the intelligence level of equipment.

Prices of systems from different brands and configurations may vary significantly. Some foreign high-end brands may have relatively higher prices due to high technological research and development costs and reliable product quality. While some domestic brands, while ensuring product performance, have relatively more affordable prices relying on cost advantages. When making a choice, users should comprehensively consider product performance, brand reputation and after-sales service according to their own budget and actual needs to make appropriate decisions.

Installation Process of Transformer Fluorescent Fiber Optic Temperature Control System

Pre-Installation Preparation

Determine the installation location: According to the structure and operation requirements of the transformer, determine the locations where temperature sensors need to be installed, such as winding hot spots, iron cores, and bushing roots. Usually, the winding hot spot is generally located at 70%-80% of the winding height.

Prepare installation tools: Prepare necessary tools such as optical fiber laying tools, optical fiber fusion splicers, wire strippers, screwdrivers, as well as safety equipment such as protective gloves and goggles.

Check equipment integrity: Carefully check whether the fluorescent fiber optic temperature sensor, optical fiber thermometer, data transmission module and other equipment are complete and free from damage, ensuring that the equipment is in good condition before installation.

Sensor Installation

Optical fiber laying: Lay the optical fiber along the insulating cardboard of the transformer or other appropriate paths. Be careful to avoid excessive bending of the optical fiber (the bending radius is generally not less than 50mm) to prevent the optical fiber from being squeezed or worn by internal components of the transformer. For sensors that need to be installed inside the winding, carefully pass the optical fiber through the winding gap to ensure that the sensor is accurately installed at the predetermined position, and fix it with insulating tape or binding straps.

Sensor fixing: Firmly fix the fluorescent fiber optic temperature sensor at the measurement position. For sensors attached to the surface of the transformer, high-temperature glue or special fixtures can be used for fixing; for plug-in sensors, ensure that their insertion depth meets the requirements and 做好密封处理 to prevent oil or other impurities from entering.

Equipment Connection

Optical fiber connection: Use an optical fiber fusion splicer to splice the optical fiber of the sensor with the input optical fiber of the optical fiber thermometer to ensure good fusion quality and low connection loss. After fusion, use an Optical Time Domain Reflectometer (OTDR) to detect the optical fiber link to ensure there are no breakpoints and abnormal losses.

Electrical connection: Electrical connection between the optical fiber thermometer and the data transmission module, correctly connect the power cord, communication line, etc. according to the equipment manual. Ensure that the wiring is firm to avoid poor contact due to looseness.

Communication settings: According to the requirements of the monitoring system, set the communication parameters of the data transmission module, such as baud rate, data format, communication protocol (common ones include Modbus, RS-485, etc.), to ensure that the optical fiber temperature control system can communicate normally with the upper computer monitoring system.

System Debugging

Power-on inspection: After completing all equipment connections, power on the system, check the working status of the optical fiber thermometer, data transmission module and other equipment, and check whether there are abnormal indicator lights or alarm information.

Temperature calibration: Calibrate the fluorescent fiber optic temperature sensor using a standard thermometer, compare the temperature measured by the sensor with that measured by the standard thermometer, and if there is a deviation, perform calibration operations in accordance with the equipment manual to ensure the accuracy of the measured temperature.

Function test: Simulate the temperature change during the operation of the transformer, check whether the system can measure and display the temperature in a timely and accurate manner. When the temperature exceeds the preset alarm threshold, check whether the system can normally send out sound and light alarm signals and transmit the alarm information to the upper computer monitoring system. At the same time, test whether the system’s functions such as data storage, historical data query, and temperature curve drawing are normal.

Recommended Brands of Transformer Fluorescent Fiber Optic Temperature Control Systems

Brand	Country	Features
FJINNO	China	One of the leading manufacturers of fiber optic thermometers in China. The company has advanced production equipment and technical teams, and its products enjoy a high reputation in the Chinese and even international markets. Its fluorescent fiber optic temperature measurement system has unique technical advantages in temperature measurement in special environments such as high voltage and strong electromagnetic interference. For example, the fluorescent fiber optic temperature sensor used in its transmitter has no electrical connection between the temperature hot spot and the measurement signal receiving part, can work with long-term high precision and high stability, and can also eliminate hidden dangers such as shortened service life of high-voltage circuit breakers or cable heads when used in over-high temperature environments. The transmitter has high precision and sensitivity, high voltage resistance, corrosion resistance, remote monitoring capability, long service life, small size, easy maintenance and safe transportation. In terms of price, its transformer fluorescent fiber optic temperature measurement system is 8,000 yuan per set, with outstanding cost performance.
Huaguang Tianrui	China	Huaguang Tianrui (Fuzhou Huaguang Tianrui Optoelectronics Technology Co., Ltd.) has long been committed to the field of fiber optic thermometer manufacturing, with rich experience and advanced production technology, able to provide high-quality products and reliable technical support. The company has established in-depth industry-university-research cooperation with Fuzhou University, set up a technical research team led by optical and electrical doctoral supervisors, with professors and graduate students participating, focusing on independent research and development to develop fluorescent fiber optic sensing technology. Its fluorescent fiber optic temperature measurement system is specially designed for power applications, very suitable for temperature measurement of transformer winding hot spots, and can directly, real-time and accurately measure hot spots such as windings. The company’s products have established a good brand reputation and industry reputation in the field of fiber optic sensing technology and intelligent safety monitoring and early warning. Its products and technologies are gaining more and more user recognition, and the brands and complete sets of enterprises with which strategic cooperation has been established are all over the country, covering various fiber optic temperature measurement related products such as fluorescent fiber optic temperature measurement devices and systems, distributed fiber optic temperature measurement systems, fiber Bragg grating temperature measurement systems, etc.
Lumasense	USA	Lumasense’s ThermAsset2 transformer winding hot spot fiber optic temperature controller has excellent performance. The system determines temperature by measuring the inherent parameter (decay time) of the phosphor alone, which does not change due to physical changes of the optical fiber, and is a system that does not require verification. Its temperature sensor is made of stable high-temperature resistant fluorescent material, directly placed at one end of the light guide fiber. During the temperature rise test, only the optical fiber probe needs to be installed (using the factory’s existing tools), and the actual temperature of the hottest spot of the winding can be known through the data measured by the optical fiber probe, with simple operation. The system has 4-8 measurement channels with independent output and display, can provide accurate winding temperature when the transformer is in peak load and emergency over-nameplate capacity operation, and can enable the transformer to adjust the load in time according to the measured actual temperature of the winding.
Tecsystem	Italy	Tecsystem in Italy also has a good reputation in the field of transformer temperature control. Its products are known for high precision and strong reliability, and are widely used in power projects in Europe and many countries around the world. Although there is limited public information on the specific technical details of its fluorescent fiber optic temperature control system, from market feedback, its product quality is excellent and can meet the temperature monitoring needs of different types of transformers. However, its products are relatively expensive, which may be more suitable for customers with high requirements on product performance and brand and sufficient budget.
Taishite	China	Taishite Technology is one of the few high-tech enterprises in China that master fluorescent fiber optic temperature measurement technology. Its T310 series fluorescent fiber optic temperature measurement system has extreme safety, with silica fiber + high-voltage insulation design, impact voltage resistance > 22kV/mm (1.2/50us), power frequency withstand voltage 220.8kV/mm, eliminating explosion hazards; electromagnetic immunity, the principle of optical signal transmission ensures that the temperature measurement accuracy does not attenuate under strong electromagnetic fields, suitable for extreme scenarios such as excitation moments; long-term maintenance-free, service life not less than 10 years, compared with the operation and maintenance cost of replacing batteries every 5 years for traditional sensors, the whole life cycle of a single transformer can save hundreds of thousands of yuan; high precision, ±1.0℃ temperature measurement accuracy, providing reliable data support for the transformer thermal model; flexible deployment, small-sized probes can be implanted into narrow spaces such as windings and iron cores, supporting Modbus RTU, 4-20mA and other multi-protocol output. It has served more than 2,000 power stations such as State Grid, China Three Gorges, and China Southern Power Grid, and deployed more than 500,000 sensors.
Omega Engineering	USA	Omega Engineering provides various types of temperature measurement solutions, and its fluorescent fiber optic temperature control system is widely used in the industrial field. The products have the characteristics of high precision and wide temperature range, and can customize sensors and systems of different specifications according to customer needs. The company has an extensive sales network and a sound after-sales service system worldwide, able to provide customers with timely and professional technical support.
Siemens	Germany	As a world-renowned electrical equipment manufacturer, Siemens has advanced technology in the field of power monitoring and control. Although its fluorescent fiber optic temperature control system is not an independent flagship product, it is integrated into the overall power solution, has good compatibility with other electrical equipment, and can provide users with one-stop system integration services. With Siemens’ strong brand strength and technical research and development capabilities, its related products are of reliable quality and stable performance, but the price is usually relatively high.
ABB	Switzerland	ABB is in a leading position in the field of power and automation technology. Some of its transformer temperature monitoring products adopt fluorescent fiber optic technology. ABB’s products focus on intelligence and digitization, and can seamlessly connect with smart grid systems to realize remote monitoring and data analysis. Through advanced algorithms and data analysis functions, it can accurately evaluate the operating status of transformers and carry out predictive maintenance, improving the reliability and operational efficiency of the power system.
Schneider Electric	France	Schneider Electric’s fluorescent fiber optic temperature control system focuses on energy efficiency and safety. Its products are compact in design, easy to install and maintain, and suitable for various types of transformers. Through intelligent monitoring and management functions, it can help users keep abreast of the operating status of transformers, optimize energy use, and reduce operating costs. At the same time, Schneider Electric has an extensive service network worldwide, able to provide customers with comprehensive technical support and after-sales service.
Endress+Hauser	Switzerland	Endress+Hauser focuses on measurement and control technology in the field of process automation. Its fluorescent fiber optic temperature control system performs excellently in temperature monitoring in industrial processes, with high precision, high reliability and good anti-interference ability. The products are suitable for various complex industrial environments and can meet application scenarios with high requirements for temperature measurement accuracy, such as transformer temperature monitoring in chemical, pharmaceutical and other industries.
Yokogawa	Japan	Yokogawa has rich experience in the field of test and measurement and industrial automation. Its fluorescent fiber optic temperature control system is known for high precision, stable performance and advanced technology. The system can provide accurate temperature data, help users timely discover potential problems in transformer operation, and ensure the stable operation of the power system. Yokogawa also focuses on product research and development and innovation, and constantly launches new products and solutions to meet market demand.
GE (General Electric)	USA	General Electric has an extensive product line and strong technical strength in the energy field. Its fluorescent fiber optic temperature control system, as part of power equipment monitoring, has good compatibility and reliability. GE’s products combine advanced sensing technology and data analysis capabilities, enabling comprehensive monitoring and intelligent management of transformers, providing strong support for the efficient operation of the power system.

Comparison Table with Other Temperature Measurement Methods

Measurement Method	Anti-Electromagnetic Interference	Precision	High-Voltage Insulation	Service Life	Installation and Maintenance
Fluorescent Fiber Optic	Excellent, not affected by strong electromagnetic fields	High, up to ±1℃	Excellent, withstand voltage > 100kV, can be directly installed on high-voltage parts	10-25 years	One-time installation, no frequent calibration, low maintenance cost
Thermocouple	Poor, easily interfered, resulting in measurement errors	Medium, generally ±2-3℃	Poor, requires insulation measures, cannot be close to high-voltage parts	5-8 years	Regular calibration required, relatively high maintenance cost
Infrared Temperature Measurement	Good, but easily affected by environmental factors such as dust and humidity	Medium to low, affected by distance and emissivity, generally ±3-5℃	Good, non-contact measurement	8-10 years	Easy installation, but needs regular cleaning of the probe, and measurement accuracy is affected by the environment
PT100	Poor, susceptible to electromagnetic interference	High, but prone to drift in strong electromagnetic environments, generally ±0.5-1℃	Poor, needs insulation protection	5-10 years	Regular calibration required, wiring is easily affected by interference

FAQs

How does the fluorescent fiber optic temperature control system work?

It works by using the characteristic that the fluorescence decay time of fluorescent materials is precisely corresponding to temperature. When light of a specific wavelength irradiates the fluorescent material, the decay time of the emitted fluorescence is measured to obtain the temperature.

How long does it take to install the system?

The installation time depends on the number of measurement points and the complexity of the transformer structure, generally taking 1-3 days.

How often does the system need maintenance?

It is maintenance-free for a long time. Under normal use, it only needs simple inspection once a year, without frequent calibration.

Is the system suitable for all types of transformers?

Yes, it is suitable for various types of transformers such as oil-immersed transformers, dry-type transformers, and box-type transformers.

What is the price range of the system?

The price varies by brand and configuration, generally ranging from several thousand yuan to tens of thousands of yuan. Domestic brands are relatively more affordable, and foreign high-end brands are higher.

Does the system have an alarm function?

Yes, it can set temperature alarm thresholds. When the temperature exceeds the threshold, it will send out sound and light alarms and transmit the alarm information to the upper computer monitoring system.

Is the system compatible with traditional monitoring systems?

Yes, it supports various communication protocols such as Modbus and RS-485, and can be seamlessly connected with traditional monitoring systems.

What is the service life of the fluorescent material in the sensor?

The fluorescent material has good stability, and its service life is consistent with that of the system, reaching 10-25 years.

Do I need to calibrate the system regularly?

No, the measurement performance of the system is not affected by time and environment, and no regular calibration is required after installation.

Is the system suitable for outdoor transformers?

Yes, the sensor and related equipment have good weather resistance, can withstand harsh outdoor environments such as high temperature, low temperature, and rain.

Fiber optic temperature sensor, Intelligent monitoring system, Distributed fiber optic manufacturer in China

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The best manufacturer of Transformer Fluorescent Fiber Optic Temperature Control System