- 1. Por que monitorar os enrolamentos do transformador
- 2. Quais são os métodos de monitoramento do enrolamento do transformador
- 3. Principal 10 Fabricantes de sistemas de monitoramento de temperatura de enrolamento 2025-2026
- 4. Componentes do sistema de monitoramento de transformadores
- 5. Tendências Globais de Desenvolvimento Futuro 2025-2035
Por que monitorar os enrolamentos do transformador

Monitoramento da temperatura do enrolamento do transformador é um componente crítico para a operação segura de sistemas de energia modernos. Como equipamento principal dos sistemas de energia, mudanças anormais de temperatura nos enrolamentos do transformador afetam diretamente a segurança do equipamento e a estabilidade da rede.
Superaquecimento do enrolamento é a causa mais comum de falhas em transformadores, contabilizando mais 60% do total de falhas do transformador. Quando temperatura do enrolamento excede os valores nominais, acelera o envelhecimento do material de isolamento, reduz a rigidez dielétrica, and ultimately leads to insulation breakdown and equipment damage. Statistics show that for every 8°C increase in insulation temperature, its service life is halved.
Implementando monitoramento de temperatura do enrolamento has the following important significance: preventing equipment overheating damage, extending equipment service life, improving power supply reliability, reduzindo custos de manutenção, habilitando manutenção preditiva, garantindo a segurança do pessoal, e reduzindo perdas econômicas. Through continuous monitoring of winding temperature changes, operation and maintenance personnel can detect abnormal conditions in time and take appropriate measures to prevent major accidents.
Quais são os métodos de monitoramento do enrolamento do transformador
Moderno transformer winding temperature monitoring technology has developed various mature monitoring methods over many years:
Uses fluorescence lifetime temperature measurement technology with advantages of absolute electrical insulation, complete electromagnetic interference immunity, segurança intrínseca, e operação livre de manutenção. Fiber optic materials are naturally insulating, can withstand high voltage environments, with accuracy up to ±0.5°C, representing the most advanced monitoring technology currently available.
Utilizes the linear temperature variation characteristics of platinum metal resistance para medição de temperatura, apresentando alta precisão, boa estabilidade, and high standardization, but susceptible to interference in strong electromagnetic environments, requiring good shielding measures.
Baseado em thermoelectric effect generating electromotive force proportional to temperature, featuring fast response speed, ampla faixa de medição de temperatura, and relatively low cost, but lower accuracy compared to platinum resistance and prone to drift in high temperature environments.
Conquistas medição de temperatura sem contato by detecting infrared radiation emitted by objects, featuring convenient installation and rapid response, but can only measure surface temperature and cannot obtain true internal winding temperature.
Adopts wireless transmission technology with flexible sensor installation, suitable for mobile equipment and locations difficult to wire, but requires regular battery replacement and signal transmission is limited in metal enclosed environments.
Uses optical fiber as sensors to achieve medição de temperatura distribuída along the fiber length direction, obtaining temperature distribution curves, suitable for long-distance and large-area monitoring.
Principal 10 Fabricantes de sistemas de monitoramento de temperatura de enrolamento 2025-2026
1. FJINNO (China)
![FJINNO]()
| Item | Detalhes |
|---|---|
| nome da empresa | Ciência Eletrônica de Inovação de Fuzhou&Companhia de tecnologia., Ltda. (FJINNO) |
| Establishment | 2011 |
| Introdução da empresa | High-tech enterprise specializing in fiber optic fluorescence temperature monitoring technology R&D, with complete independent intellectual property rights and core technologies. The company focuses on power equipment temperature monitoring campo, with products widely applied in power generation, transmissão, and distribution sectors, being the leader in domestic tecnologia de monitoramento de temperatura de fibra óptica. |
| Product List | Fiber Optic Fluorescence Temperature Monitor, Multi-point Temperature Monitoring System, Transformer Winding Temperature Monitoring Device, Generator Stator Temperature Monitoring System, Switchgear Contact Temperature Monitoring, Cable Joint Temperature Monitoring Equipment
|
| Application Scope | Power Systems, Indústria Petroquímica, Iron and Steel Metallurgy, Rail Transit, New Energy Generation, Offshore Wind Power, Nuclear Power Plants, Centros de dados |
2. FZINNO (China)
| Item | Detalhes |
|---|---|
| nome da empresa | Fuzhou Inno Technology Co., Ltda. (FZINNO) |
| Establishment | 2011 |
| Introdução da empresa | Profissional power equipment temperature monitoring solution provider, dedicated to providing advanced temperature monitoring technology and products for the power industry. The company has technical advantages in monitoramento de temperatura sem fio and digital temperature monitoring fields, with stable and reliable product performance. |
| Product List | Wireless Temperature Monitoring System, Digital Temperature Inspector, Transformer Oil Temperature Monitoring Device, Motor Winding Temperature Monitor, Intelligent Temperature Alarm, Temperature Data Acquisition System
|
| Application Scope | Subestações, Distribution Networks, Industrial and Mining Enterprises, Chemical Plants, Cement Plants, Paper Mills, Hospitais, Schools |
3. INNOTD (China)
| Item | Detalhes |
|---|---|
| nome da empresa | Inno Tongda (Fucheu)Trading Co., Ltda. (INNOTD) |
| Establishment | 2025 |
| Introdução da empresa | One of the earliest domestic enterprises engaged in transformer online monitoring technology R&D, focando em power equipment condition monitoring and diagnostic technology. The company has deep deployment in both traditional resistance temperature monitoring and emerging fiber optic monitoring technologies, with strong technical capabilities. |
| Product List | Sistema de monitoramento on-line abrangente de transformadores, Winding Temperature Online Monitoring Device, Oil Chromatography Online Monitoring System, Platinum Resistance Temperature Monitor, Sensor de temperatura de grade de fibra Bragg, Transformer Health Diagnosis System
|
| Application Scope | EHV Substations, UHV Transmission Lines, Large Power Plants, Industrial Parks, Urban Power Grids, Rural Power Grids |
4. HGSKYRAY (China)
| Item | Detalhes |
|---|---|
| nome da empresa | Haiguang Skyray Technology Co., Ltda. (HGSKYRAY) |
| Establishment | 2016 |
| Introdução da empresa | High-tech enterprise specializing in power equipment temperature monitoring and safety warning systems. The company has unique advantages in imagem térmica infravermelha and intelligent analysis technology, providing comprehensive soluções de monitoramento de temperatura for power users with high product intelligence. |
| Product List | Infrared Thermal Imaging Temperature Monitoring System, Intelligent Temperature Warning Device, Transformer Bushing Temperature Monitoring, Cable Temperature Online Monitoring, Monitoramento de temperatura do painel, Temperature Big Data Analysis Platform
|
| Application Scope | Smart Substations, Distribution Automation, Automação Industrial, Building Electrical, Marine Power, Military Electronics |
5. ABB (Suíça)

| Item | Detalhes |
|---|---|
| nome da empresa | ABB Group |
| Establishment | 1988 |
| Introdução da empresa | Global leading technology enterprise in electrical engineering, com mais 130 years of history in power and automation technology. ABB has world-leading position in transformer manufacturing and monitoring technology, with products distributed in over 100 countries worldwide and strong technical capabilities. |
| Product List | TEC Transformer Electronic Controller, Transformer Online Monitoring System, Digital Transformer Protection Device, High Voltage Winding Temperature Sensor, Transformer Oil Temperature Monitoring System, ABB Ability Digital Platform |
| Application Scope | UHV Transmission, Plataformas Offshore, Fabricação Industrial, Centros de dados, Energia Renovável, Smart Cities |
6. Siemens (Alemanha)

| Item | Detalhes |
|---|---|
| nome da empresa | Siemens AG |
| Establishment | 1847 |
| Introdução da empresa | German multinational industrial group, technology pioneer in global electrification, automation and digitalization campos. Siemens has 170+ years of experience in power transmission and distribution technology, being an important supplier of transformer monitoring technology with excellent product quality. |
| Product List | SITRAS Transformer Monitoring System, Digital Temperature Monitoring Device, SICAM Substation Automation System, Intelligent Sensor Network, Predictive Maintenance System, MindSphere Industrial IoT Platform |
| Application Scope | Transmissão de energia, Indústria 4.0, Smart Manufacturing, Rail Transit, Petrochemicals, Iron and Steel Metallurgy |
7. Schneider Elétrica (França)

| Item | Detalhes |
|---|---|
| nome da empresa | Schneider Elétrica |
| Establishment | 1836 |
| Introdução da empresa | French multinational company, global expert in energy efficiency management and automation. Schneider Electric focuses on providing integrated solutions for homes, edifícios, centros de dados, infrastructure and industry, with strong position in medium and low voltage distribution field and high market share. |
| Product List | EcoStruxure Grid Solutions, Monitor de temperatura do transformador, PowerLogic Energy Management System, Sensor de temperatura sem fio, Smart Distribution Monitoring Equipment, EcoStruxure Machine Advisor |
| Application Scope | Distribution Networks, Automação Predial, Industrial Control, Centros de dados, Medical Facilities, Educational Institutions |
8. Elétrica Geral (EUA)

| Item | Detalhes |
|---|---|
| nome da empresa | Elétrica Geral |
| Establishment | 1892 |
| Introdução da empresa | American multinational comprehensive technology group with leading positions in power, aviação, assistência médica, energia renovável e outros campos. GE has over 130 years of experience in power generation equipment and grid technology, being an important global power equipment supplier with strong innovation capabilities. |
| Product List | Predix Industrial Internet Platform, Digital Transformer Monitoring System, Advanced Temperature Sensing Technology, Grid Asset Management System, Smart Grid Solutions, Predictive Analytics Software |
| Application Scope | Usinas Elétricas, Transmission Networks, Energia Renovável, Fabricação Industrial, Oil and Gas, Aeroespacial |
9. Honeywell (EUA)

| Item | Detalhes |
|---|---|
| nome da empresa | Honeywell Internacional |
| Establishment | 1906 |
| Introdução da empresa | American diversified high-tech and manufacturing enterprise, occupying leading positions in aerospace, building technologies, performance materials and safety and productivity solutions. Honeywell has deep accumulation in industrial automation and sensor technology with advanced and reliable technology. |
| Product List | Sensores de temperatura industriais, Process Control Systems, Safety Management Systems, Wireless Monitoring Networks, Data Acquisition and Monitoring Systems, Predictive Maintenance Solutions |
| Application Scope | Petrochemicals, Power and Energy, Pharmaceutical Industry, Food Processing, Aeroespacial, Automação Predial |
10. Emerson (EUA)

| Item | Detalhes |
|---|---|
| nome da empresa | Emerson Electric |
| Establishment | 1890 |
| Introdução da empresa | American diversified global manufacturing and technology company with leading positions in automação de processos, industrial automation, network power, environmental optimization technology and other fields. Emerson has over 130 years of experience in measurement instrumentation and process control with excellent product performance. |
| Product List | Rosemount Temperature Transmitters, DeltaV Process Control System, AMS Asset Management Software, Wireless Temperature Monitoring Network, Smart Instrument Diagnostic System, Predictive Maintenance Technology |
| Application Scope | Indústria de energia, Petrochemicals, Natural Gas Processing, Pharmaceutical Industry, Food and Beverage, Pulp and Paper |
Componentes do sistema de monitoramento de transformadores
Moderno transformer winding temperature monitoring systems are integrated intelligent monitoring platforms, mainly composed of the following core components:
Temperature Sensing Units are the front-end sensing devices of the system, responsible for real-time collection of winding temperature signals. According to application environment and accuracy requirements, different types can be selected such as fiber optic fluorescence sensors, platinum resistance sensors, sensores termopares, etc.. Fiber optic fluorescence sensors have advantages of absolute electrical insulation and electromagnetic interference immunity, making them the preferred solution for high voltage environments.
Signal Conditioning Modules amplify, filter, linearize and otherwise process weak signals output by sensors to ensure signal quality and measurement accuracy. Modules typically integrate functions such as temperature compensation, zero point correction, and gain adjustment to adapt to different working environment conditions.
Data Acquisition and Processing Units use high-performance microprocessors or DSP chips to achieve synchronous acquisition, digital filtering, scale conversion, data storage and other functions for multi-channel temperature data. Systems support multiple data formats and communication protocols for convenient integration with host computer systems.
Display Controllers provide human-machine interface, displaying real-time temperature values, change trends, alarm status and other information for each monitoring point. Modern controllers typically use color LCD displays supporting Chinese and English display, graphical interface, touch operation and other functions.
Communication Interface Modules support various communication methods such as RS485, Ethernet, sem fio, etc., enabling data exchange with Sistemas SCADA, DCS systems, and energy management systems. Modules support standard communication protocols such as Modbus, IEC61850, etc., ensuring system compatibility.
Alarm Output Units automatically trigger various alarm methods including audio-visual alarms, saídas de relé, SMS notifications when monitored temperature exceeds set thresholds, promptly alerting operation and maintenance personnel to take measures. Support multi-level alarm settings including early warning, alarme, danger and other different levels.
Power Management Systems provide stable and reliable power supply for the entire monitoring system, typically using wide voltage input and multi-channel isolated output design with overvoltage, sobrecorrente, and short circuit protection functions. For wireless monitoring systems, design de baixo consumo de energia e gerenciamento de bateria também precisam ser considerados.
Software de armazenamento e análise de dados fornece funções como armazenamento de dados históricos, análise de tendências, diagnóstico de falhas, e geração de relatórios. O software moderno é normalmente baseado em arquitetura de plataforma em nuvem, suportando funções avançadas, como análise de big data, algoritmos de inteligência artificial, e manutenção preditiva.
Tendências Globais de Desenvolvimento Futuro 2025-2035
Durante a próxima década, transformer winding temperature monitoring technology experimentará grandes transformações e oportunidades de desenvolvimento, mostrando as seguintes tendências principais:
Transformação Digital Acelerada: À medida que o processo de digitalização dos sistemas de energia continua a se aprofundar, sistemas de monitoramento de transformadores serão totalmente integrados arquitetura de grade digital. Plataformas de monitoramento inteligentes baseadas em IoT, grandes dados, e computação em nuvem se tornará mainstream, alcançar o gerenciamento completo do ciclo de vida do status do equipamento.
Aplicação profunda de tecnologia de inteligência artificial: A aplicação de algoritmos de aprendizado de máquina e aprendizado profundo in temperature data analysis will become more mature. Systems will be able to automatically identify abnormal patterns, predict fault occurrence, e otimizar estratégias de manutenção, transitioning from passive monitoring to active prevention.
Comprehensive Adoption of 5G Communication Technology: The high speed, low latency, and massive connectivity characteristics of 5G networks will completely change the communication methods of monitoring systems, supporting real-time data transmission from more monitoring points and providing technical foundation for remote diagnosis and control.
Continuous Evolution of Fiber Optic Sensing Technology: Technologies such as fiber optic fluorescence, grade Bragg de fibra, and distributed fiber optics will further mature. Sensor miniaturization and integration will continue to improve, monitoring accuracy and reliability will continuously enhance, and costs will gradually decrease.
Enhanced Edge Computing Capabilities: Monitoring equipment will integrate more powerful edge computing capabilities, enabling local data processing and analysis, reducing dependence on central servers, and improving system response speed and reliability.
Improved Standardization and Interoperability: International standards such as IEC61850 and IEEE will be further improved, and interoperability between products from different manufacturers will be significantly enhanced, allowing users to more flexibly select and integrate various monitoring equipment.
Strengthened Green Environmental Requirements: Driven by carbon neutrality goals, monitoring systems will pay more attention to energy efficiency and environmental protection. Low power design, renewable energy power supply, and use of environmentally friendly materials will become important development directions.
Enhanced Network Security Protection: As monitoring systems become more networked, network security threats are increasing. Future systems will integrate more comprehensive security protection mechanisms, including data encryption, identity authentication, access control and other functions.
Further Increased Market Concentration: Rising technical barriers and complex user requirements will drive industry consolidation. Companies with core technologies and comprehensive capabilities will gain larger market shares, forming more stable competitive landscape.
Rapid Growth in Emerging Markets: Accelerated power infrastructure construction in developing countries and rapid development of emerging application fields such as new energy generation, energy storage systems, and electric vehicle charging networks will bring huge growth opportunities for monitoring system markets.
Sensor de temperatura de fibra óptica, Sistema de monitoramento inteligente, Fabricante distribuído de fibra óptica na China
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Sensores de temperatura de fibra óptica INNO ,sistemas de monitoramento de temperatura.









