Escenarios de aplicación del sistema de monitoreo de temperatura de aparamenta basado en medición de temperatura de fibra óptica fluorescente

El sistema de monitoreo de temperatura de aparamenta basado en medición de temperatura de fibra óptica fluorescente., with its core advantages of anti-strong electromagnetic interference, aislamiento de alto voltaje, alta precisión, and adaptation to narrow spaces, is widely used in various scenarios requiring real-time monitoring of critical parts of switchgear temperature, especially suitable for complex power environments that traditional temperature measurement technologies find difficult to cope with. The following are the main application scenario classifications and specific descriptions:

1. Application Scenarios Classified by Voltage Level

1. Medium and High Voltage Switchgear (10kV~35kV)

• Escenarios de aplicación: 10kV/20kV/35kV switchgear (such as KYN28, XGN series) in urban distribution network switching stations, residential distribution rooms, and industrial park distribution rooms.
• Enfoque de monitoreo:
  • Circuit breaker moving and static contacts, isolating switch contacts (excessive contact resistance easily causes overheating, which is a high-incidence fault point);
  • Busbar connection points (copper bar connection points overheat due to oxidation and bolt loosening);
  • Terminales de cables (connection parts between cables and switchgear, easily generate heat under long-term load).
• Requirement Characteristics: Medium and high voltage switchgear are numerous and widely distributed, requiring system support for multi-point monitoring (3~6 measuring points per cabinet) and remote centralized data management. The electromagnetic interference resistance of fluorescent fiber optic can avoid electromagnetic pulse effects during circuit breaker switching.

2. Aparamenta de alto voltaje (110kV y más)

• Escenarios de aplicación: 110kV/220kV high voltage switchgear (such as GIS switchgear, gas insulated metal-enclosed switchgear) in substations and hub substations.
• Enfoque de monitoreo:
  • GIS internal conductor rod joints (overheating in sealed environment easily causes SF₆ gas decomposition, provocando fallos en el aislamiento);
  • Bushing and busbar connection parts (poor contact under high voltage easily produces local overheating, threatening insulation safety).
• Requirement Characteristics: Extremely high insulation requirements in high voltage environment (need to withstand 110kV and above voltage). The insulation characteristics of fluorescent fiber optic (fiber breakdown field strength >10kV/mm) can be directly installed close to high voltage components without additional insulation measures, and adapt to the closed, low-maintenance environment of GIS.

2. Application Scenarios Classified by Industry Sectors

1. Sistema de energía (Grid and Substations)

• Requisitos básicos: Ensure stable grid operation, avoid power outages caused by switchgear overheating (such as regional power outage caused by 10kV switchgear contact overheating at a substation in 2023).
• Aplicaciones típicas:
  • Urban substation 10kV outgoing switchgear (large load fluctuations, need real-time monitoring of load-temperature correlation);
  • Distribution switchgear in rural grid transformation (complex environment, strong adaptability of fluorescent fiber optic’s dust and moisture resistance).

2. Industrial Enterprises (Factories, Fabricación)

• Requisitos básicos: Industrial production relies on continuous power supply, switchgear failure may cause production line shutdown (such as self-owned distribution rooms in automobile factories, plantas quimicas).
• Aplicaciones típicas:
  • Steel plant high voltage motor control cabinets (high load, strong vibration environment, Las características de resistencia a la vibración de fibra óptica fluorescente y resistencia a la interferencia electromagnética son adecuadas);
  • Aparamenta a prueba de explosiones para plantas químicas (requiere monitoreo intrínsecamente seguro, La fibra óptica no tiene riesgo de chispas eléctricas., cumple con los requisitos a prueba de explosiones).

3. Tránsito ferroviario (Metro, Tren de alta velocidad)

• Requisitos básicos: El sistema de suministro de energía para el transporte ferroviario requiere una confiabilidad extremadamente alta (graves consecuencias del cierre), aparamenta ubicada principalmente en túneles, Depósitos de vehículos y otros espacios estrechos..
• Aplicaciones típicas:
  • Subestación de tracción del metro aparamenta de 35kV (gran impacto de la carga de tracción, los contactos se sobrecalientan fácilmente);
  • Aparamenta de 10kV para estación de distribución de línea ferroviaria de alta velocidad (ambiente al aire libre o semi-al aire libre, Necesidad de soportar altas y bajas temperaturas., lluvia y nieve, La fibra óptica fluorescente tiene una fuerte resistencia a la intemperie.).

4. Edificios Comerciales y Civiles (Edificios de oficinas, Grandes Lugares)

• Requisitos básicos: Ensure power supply for critical equipment such as elevators and air conditioning, avoid affecting user experience due to distribution failures.
• Aplicaciones típicas:
  • Super high-rise office building low voltage distribution cabinets (although low voltage, but dense load, busbar joints easily overheat);
  • Large shopping mall distribution room switchgear (closed environment, traditional infrared temperature measurement difficult to penetrate cabinet doors, fluorescent fiber optic can be built-in monitoring).

3. Application Scenarios in Special Environments

1. Strong Electromagnetic Interference Environment

Such as switchgear near transformers and reactors (strong electromagnetic fields around), traditional thermocouples and wireless sensors are easily interfered with causing data distortion, while fluorescent fiber optic transmits through optical signals, completely avoiding electromagnetic coupling problems.

2. Space-constrained or Closed Environment

Such as compact switchgear (such as MNS drawer cabinets), GIS fully enclosed switchgear, with dense internal components, infrared temperature measurement requires opening cabinet doors (safety risks exist), while fluorescent fiber optic probes can be embedded in narrow gaps (diameter only 1~2mm), achieving monitoring without cabinet disassembly.

3. Alta humedad, Dusty Environment

Such as cement plants, underground mining distribution rooms (heavy dust), southern humid region distribution rooms, fluorescent fiber optic probes use IP65 and above protection packaging, dust-resistant, moisture-resistant, avoiding failure of traditional sensors due to moisture and dust accumulation.

4. Long-term Maintenance-free Scenarios

Such as unattended substations, remote photovoltaic/wind power booster stations, Las sondas fluorescentes de fibra óptica son dispositivos pasivos. (no requiere energía de la batería), La vida útil puede alcanzar más de 10 años, Reducir el costo de reemplazo en el sitio por parte del personal de mantenimiento..

4. Comparación de adaptabilidad de escenarios con tecnologías tradicionales de medición de temperatura

Características del escenario	Limitaciones de las tecnologías tradicionales (Infrarrojo, Inalámbrico)	Ventajas de adaptabilidad del sistema de fibra óptica fluorescente
Alto voltaje, Fuerte electromagnético	Alto riesgo de aislamiento, datos fácilmente interferidos	Aislamiento de fibra óptica, interferencia antielectromagnética, Instalado directamente cerca de componentes de alto voltaje.
Espacio cerrado/estrecho	El infrarrojo requiere contacto en la línea de visión, mala penetración de la señal inalámbrica	La fibra óptica se puede disponer de forma flexible, sonda incorporada sin desmontaje del gabinete
Alta humedad, Polvoriento	Sensores fácilmente afectados por la humedad y el polvo., disminución de la precisión	Diseño de sonda sellada, resistente al ambiente hostil
Desatendido a largo plazo	Wireless sensors need regular battery replacement, alto costo de mantenimiento	Passive probe, larga vida útil, sin mantenimiento

Resumen

The core application scenarios of switchgear temperature monitoring system based on fluorescent fiber optic temperature measurement cover medium and high voltage power systems, industrial production, tránsito ferroviario, building distribution and other fields. Especially in scenarios with strong electromagnetic interference, alto voltaje, closed narrow spaces, harsh environments and requiring long-term maintenance-free operation, it demonstrates advantages that traditional technologies cannot replace. Its application essence is to achieve reliable temperature sensing, enabling switchgear “mantenimiento basado en condiciones” to replace “regular power outage maintenance”, ultimately improving the safety and economy of power systems.

Sensor de temperatura de fibra óptica, Sistema de monitoreo inteligente, Fabricante distribuido de fibra óptica en China