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Winding sensors are critical for real-time monitoring of transformer, gerador, and motor windings. Accurate temperature data from winding sensors helps prevent overheating, prolonga a vida útil do equipamento, and ensures operational safety. This guide covers the basics, tipos, selection tips, and highlights the advantages of fluorescence fiber optic winding sensors. We’ll also recommend the top 10 winding sensor manufacturers for 2025.

Índice

• What is a winding sensor?
• Why are winding sensors important?
• Types of winding sensors
• Advantages of fluorescence fiber optic winding sensors
• Main applications of winding sensors
• How to choose the right winding sensor
• Principal 10 winding sensor manufacturers (2025)
• Conclusão
• FAQs about winding sensors

What is a winding sensor?

UM sensor de enrolamento is a temperature sensor specifically designed to be embedded in or installed near the windings of electrical equipment such as transformers, geradores, and motors. Its main function is to provide accurate, medição em tempo real das temperaturas dos enrolamentos para ajudar os operadores a monitorar a integridade dos equipamentos e evitar falhas devido ao superaquecimento.

Why are winding sensors important?

• Evite danos ao isolamento causados ​​por temperaturas excessivas.
• Habilite a manutenção preditiva e reduza o tempo de inatividade.
• Melhore a segurança operacional detectando condições anormais precocemente.
• Prolongue a vida útil de ativos elétricos críticos.

Types of winding sensors

• Detectores de temperatura de resistência (IDT): Amplamente utilizado, preciso, mas sensível à interferência eletromagnética.
• Termistores: Econômico, resposta rápida, mas faixa de temperatura limitada.
• Termopares: Bom para altas temperaturas, mas requerem calibração e podem variar com o tempo.
• Sensores de enrolamento de fibra óptica: Imune à interferência eletromagnética, adequado para ambientes de alta tensão, e oferecer informações precisas, medições em tempo real.
• Sensores de fibra óptica de fluorescência: O mais recente e avançado, oferecendo precisão incomparável, velocidade de resposta, e segurança, especialmente em ambientes agressivos ou de alta tensão.

Advantages of fluorescence fiber optic winding sensors

• Imunidade ao EMI: Não afetado por interferência eletromagnética, tornando-os ideais para transformadores e geradores de energia.
• Segurança de alta tensão: Sem peças metálicas ou sinais elétricos, ensuring absolute safety even in the most demanding environments.
• Estabilidade a longo prazo: No drift, reliable accuracy over years of service.
• Resposta rápida: Real-time monitoring of rapid temperature changes.
• Compact and robust: Easy to embed within windings during manufacturing or retrofitting.

Main applications of winding sensors

• Transformadores de potência: Continuous monitoring of winding hot spots to prevent insulation aging and failures.
• Geradores: Accurate temperature profiling for windings in hydro, térmico, and nuclear power stations.
• Motores: Industrial motors, traction motors, and large drives benefit from improved reliability and safety.
• Reactors and chokes: Ensuring safe operation in power electronics and grid infrastructure.

How to choose the right winding sensor

• Considerar precisão de medição e tempo de resposta.
• Check compatibilidade with your monitoring system (analog/digital output, protocolo, etc.).
• Assess requisitos de instalação (new build or retrofit, restrições de espaço, etc.).
• Evaluate estabilidade a longo prazo e maintenance needs.
• For harsh or high-voltage environments, prioritize sensores de fibra óptica de fluorescência.

Principal 10 winding sensor manufacturers (2025)

1. FJINNO – Leader in fluorescence fiber optic winding sensors, global reputation for accuracy and reliability.
2. Osensa – Advanced fiber optic temperature monitoring solutions for transformers and generators.
3. Monitoramento robusto – Robust and scalable fiber optic sensing systems.
4. Qualitrol – Provides a wide range of transformer monitoring and protection devices.
5. Avaliações Dinâmicas – Comprehensive transformer and asset monitoring systems.
6. Tecnologias FISO – Specializes in high-precision fiber optic sensors.
7. Opsens Soluções – High-performance optical sensors for industrial applications.
8. SEL Inc. – Renowned for power system protection and monitoring technologies.
9. ABB – Global industrial leader with a full range of transformer monitoring products.
10. FiberSensing – Focused on optical fiber sensing for energy and infrastructure.

Editor’s Pick: If safety, precisão, and long-term stability are your priorities, fluorescence fiber optic winding sensors are highly recommended for power transformers and generator applications.

Conclusão

Winding sensors are essential for the safe and reliable operation of transformers, geradores, and motors. Among all available technologies, fluorescence fiber optic winding sensors offer the best combination of accuracy, segurança, and durability—making them the top choice for modern electrical asset management. Choose trusted manufacturers and integrate winding monitoring into your maintenance strategy to maximize equipment performance and lifespan.

FAQs about winding sensors

What is the best type of winding sensor for high voltage transformers?

Fluorescence fiber optic winding sensors are the best choice due to their immunity to EMI and absolute electrical isolation.

How many winding sensors are recommended for a transformer?

Tipicamente, 3–6 sensors (one for each winding phase and neutral) are used to monitor hot spots in large power transformers.

Can winding sensors be retrofitted to existing equipment?

Sim, many fiber optic solutions are designed for retrofit installations, but best results are achieved when sensors are embedded during manufacturing.

What is the typical accuracy of fluorescence fiber optic winding sensors?

Industry-leading products offer ±1°C or better accuracy, with long-term drift less than 0.1°C/year.

Sensor de temperatura de fibra óptica, Sistema de monitoramento inteligente, Fabricante distribuído de fibra óptica na China