The advantages of point type fiber optic temperature sensors-INNO

포인트 타입 광섬유 온도 센서의 장점

The fiber optic temperature measurement system is mainly completed using fluorescent optical fibers. The sensors are isolated under high voltage and the absorbed optical signals are transmitted for temperature monitoring of the measured object. The consistency and stability of the optical fibers have reached international advanced levels, and the temperature measurement accuracy is high.

Fluorescent fiber optic temperature sensors have the characteristics of intrinsic safety, 전자기 간섭 없음, stable monitoring, 정확한 온도 측정 정확도, 빠른 응답 속도, 고감도, 고압 저항, 내식성, ability to work in extreme measurement environments, and lower total cost compared to 분산형 광섬유 temperature measurement and fiber optic gratings.

	형광 광섬유 온도 측정	Wireless or infrared temperature measurement
Temperature measurement method	Contact temperature measurement	Contact or non-contact temperature measurement
안전	Non electrified, 비금속, 방습, 폭발 방지, with no inherent safety hazards	The probe contains a charged body and battery, which poses a risk of explosion
착실 신뢰도	착실 신뢰도	Easy to electromagnetic interference and poor reliability; RF signals are easily blocked
정밀	Installed at the contact point, without temperature deviation, optical measurement, 높은 정확도	The installation position is far from the contact, causing temperature deviation and low accuracy
Temperature measurement method	실시간, 온라인	실시간, 온라인
Alarm positioning	정확한 포지셔닝	정확한 포지셔닝
설치 및 유지 관리	The temperature measuring probe is very small and can be directly installed on the measured point	The probe has a large volume, and it is inconvenient to maintain the power outage when replacing the battery
서비스 수명	No consumable components, 긴 서비스 수명	Depends on probe RF power consumption and battery capacity
경제	Economically cost-effective and cost-effective	높은 비용, 정기적인 유지 관리가 필요합니다, low cost performance

The application range of point type fluorescent fiber optic temperature sensors is wide, with customers covering various substations and large petroleum and petrochemical enterprises around the world. The online fiber optic temperature monitoring of high-voltage transmission line joints and switchgear circuit breaker contacts can meet the needs of temperature monitoring systems in the large power industry, and develop and customize cost-effective fiber optic temperature monitoring systems for major enterprises nationwide.

By utilizing the excellent insulation and high-voltage isolation performance of point type fiber optic sensors for temperature measurement, FJINNO independently developed 형광성 광섬유 온도 감지기 can be used for temperature monitoring during the operation of high-voltage equipment in different environments:

1. Contact and contact measurement of high-voltage switchgear

2. Temperature measurement of dry-type transformers

3. Temperature measurement of oil immersed transformers

4. High voltage busbar joint

5. 고전압 케이블 조인트

6. Knife switch

7. 석유 및 가스 파이프라인, flammable and explosive tank bodies, 등.

Point type fiber optic temperature measurement system

The point type 광섬유 온도 센서 converts the temperature information of the monitored area into optical signals and transmits them to the fluorescence fiber optic thermometer. The probe of the fluorescence fiber optic sensor independently developed by FJINNO is the most advanced fluorescence fiber optic thermometer in China, which can be directly installed on the measured point, with accurate temperature measurement and fast response. The point type fiber optic thermometer receives real-time optical signals carrying temperature information sent by fluorescent fiber optic temperature sensors, and demodulates them into temperature values through the principle of fluorescent fiber optic temperature measurement, achieving temperature measurement of the monitored area. The monitoring system can set an alarm signal when the actual temperature measurement value is greater than the alarm set value, and can set the temperature control device to trip and other device settings. The point type fiber optic thermometer can work independently on a single channel, or can be used in a network with multiple multi-channel fiber optic temperature sensor systems.

The point type fiber optic temperature measurement system is a distributed temperature measurement system consisting of a fluorescent fiber optic temperature sensor probe, 광섬유 온도 센서 (fiber optic temperature transmitter module), a fluorescence transmission fiber optic, a monitoring host display screen, 등. The fiber optic temperature sensor demodulates the optical signal of the temperature information carried by the fiber optic temperature sensor probe, converts it into a temperature value, and then uploads it to the monitoring host through the fluorescence fiber optic demodulator to complete the temperature monitoring of the measured part. The fiber optic device and high-temperature resistant insulation material are used as the fiber optic temperature measurement probe, and single-mode fiber optic is used to achieve long-distance signal transmission. Special signal demodulation and filtering algorithms are used to improve the measurement accuracy and stability of the product. Low product cost, strong anti vibration and anti electromagnetic interference capabilities, 높은 정확도, 빠른 응답 속도, 고해상도, unrestricted transmission distance, 및 확장성. It can be used in situations such as difficult power supply, 밀봉, 고전압, 강한 자기장, microwave field, nuclear radiation, strict explosion-proof, 방수복, 부식 방지, small spaces or small workpieces.

Application of point type fiber optic temperature sensor in high-voltage switchgear equipment

광섬유 센서는 정적 접점과 부스바의 교차점에 설치됩니다.. 높은 단열성을 지닌 특수 설비, 높은 열전도율, 높은 탄력성, 고온 저항, and corrosion resistance are selected for the fixation of the sensing head. The optical fibers are routed along the corners of the cabinet and the weak current cable trough, or tied together with insulation ties with the secondary wires inside the cabinet. This monitoring system has comprehensive monitoring and alarm functions, ensuring that high-voltage equipment is always in a monitored state and completely unaffected by human factors. 알람이 발생하는 경우, 시스템은 해당하는 소리 및 빛 경보 신호를 방출합니다., and the on duty personnel have sufficient time to take corresponding measures. 이는 사고를 예방하거나 화재를 유발하는 데 특히 중요합니다..

The application of point type fiber optic sensing technology in temperature monitoring of high-voltage switchgear in transmission systems has achieved real-time online temperature detection at key equipment points (연락처, 케이블 조인트). 동시에, special optical fibers with high voltage levels are used, as optical fibers have characteristics such as electrical insulation, 본질 안전, 전자기 간섭에 대한 내성, meeting the requirements of high-voltage power switchgear equipment for the voltage resistance level of optical fibers.

The application of point type fiber optic temperature measurement system effectively improves the safety and reliability of power supply in the power grid, and has certain promotion value in the same industry as a measurement method.

The point type fiber optic online temperature measurement system for high-voltage switchgear uses online temperature monitoring to monitor the operating temperature of electrical equipment, especially the temperature at hot spots, which is an important means of fault warning and accident prevention. It can detect signs of heating at equipment joints inside the switchgear in advance and prevent fault events caused by temperature rise.