건식 변압기 권선의 가장 안전한 온도 측정 방법은 무엇입니까?

Overview of solutions for fluorescent fiber optic temperature controllers for dry-type transformers
The measurement range specified in the “Electronic Temperature Controller for Transformers” (JB/T7631-2016), which uses Pt100 as the traditional temperature sensor, can only be limited to below 1000V, and this sensor is made of metal material, which poses a safety hazard. 그러므로, temperature sensor probes and leads for measuring transformer winding temperature have higher requirements.

The fiber optic temperature controller uses our company’s independently developed 형광성 광섬유 온도 센서 온도 감지 요소로. 이 온도 감지 요소는 전자기 간섭에 면역이고 고전압에 강합니다. (100KV/섬유-접지 리드 거리 0.4m). 형광 광섬유 온도 측정은 온도 측정 소스로 인한 잠재적인 안전 위험을 완전히 해결하고 변압기의 안전 수준을 향상시킵니다..

대상 형광 광섬유 온도 측정 시스템 건식 변압기용
건식 변압기의 작동 환경용, 외부 전기 간섭 신호로부터 절연 및 차폐는 전원 공급 장치에서 이루어집니다., 신호 입력 끝, 신호 출력 끝, 그리고 온도 조종 상자 포탄.
금속 물질 없음, 본질 안전.
진동에 반응하여, 먼지, 수분, 석유 및 기타 현장 작업 환경, 광섬유를 보장하기 위해 다층 보호 조치가 취해졌습니다. 온도 컨트롤러 전자파 적합성이 좋다, 안정적이고 신뢰할 수 있는 작동 보장.
건식 변압기용 형광 광섬유 온도 측정 호스트의 설계 원리
실용성의 원리
The system construction adheres to the principle of practicality. On the basis of practicality, progressiveness and foresight are considered, and standard, advanced and mature products and development platforms are selected to build a system that is practical and solves practical problems.

Standardization principle
The system software and hardware platforms and application development tools used in application construction should comply with national standards, standards of the Ministry of Information Industry, relevant technical specifications and requirements of the company.

The principle of uniformity
Following the policy of centralized information management, overall planning, overall design, and step-by-step implementation, the implementation process embodies four unified principles: unified leadership, unified planning, unified standards, and unified organization and implementation.

Reliability principle
The software and hardware resources need to ensure the uninterrupted and reliable operation of the 광섬유 온도 측정 시스템 ~을 위한 7 × 24 시간. 그러므로, it is necessary to equip a complete design of reliability measures to ensure the highly reliable operation of the system and fully consider the reliability requirements of key system applications.

Reliable security mechanism
This system adopts a series of secure encryption measures, with a built-in 64 bit encryption algorithm. The system has higher security and can effectively prevent data leakage and theft, ensuring the security, 정확성, and integrity of the system’s data, and preventing illegal operator operations and legitimate operator illegal operations.

The operation interface is simple, friendly, and highly intelligent
The system automatically checks the legality of the input data and provides friendly prompts for operator errors.

Stable operation and reliable data.
The platform is easy to operate, easy to master, and the installation process is simple. Data can be automatically generated into various reports as needed, improving management efficiency.
Principle of Fluorescent Fiber Optic Temperature Measurement
광섬유 프로브는 세 부분으로 구성됩니다.: ST 커넥터, 광섬유 케이블, 온도 감지 종료. ST 커넥터는 광전 모듈과의 연결 부분입니다.; 광섬유 케이블은 전송 부분입니다., 내부에 석영 섬유가 있음. 석영 섬유는 외부에 코팅과 클래딩이 있습니다., 그리고 가장 바깥쪽에는 테프론 보호 슬리브가 있습니다.; The end temperature sensing end contains temperature sensitive rare earth materials, which excite fluorescence after being irradiated by fixed wavelength light. 흥분이 멈춘 후, 형광 잔광의 붕괴 시간 상수와 온도 사이의 관계는 준지수 함수입니다.. 잔광의 시정수를 측정하여 온도를 구할 수 있습니다.; 광섬유는 고온에 강합니다. 200 ℃이고 외경은 3mm이다.. 13.2cm의 장기 굽힘 반경. Short term bending radius 4.4cm

The sensor probe material is rare earth fluorescent material, and its biggest advantage compared to other optical fiber temperature measurement principles is that temperature measurement is independent of light intensity. It has strong compatibility with the inconsistency of fluorescence intensity, 광학 경로 감쇠, 하드웨어의 회로 드리프트. 그러므로, it is not affected by electromagnetic interference and can withstand high voltage, making it very suitable for high voltage, 강한 자기장, flammable and explosive temperature measurement occasions.

Introduction to wiring and installation of fiber optic temperature controllers for dry-type transformers
1.1 Structural framework
시스템은 세 부분으로 구성됩니다.: a fluorescent fiber optic temperature controller, 형광성 광섬유 프로브, 및 광섬유 통신 소프트웨어.

The data transmission between the backend system and the temperature measurement terminal adopts RS485 communication method.

All data collection, 관리, and temperature display are completed by communication software, and the system mainly realizes data collection and monitoring of temperature measurement. The fiber optic temperature measurement terminal integrates multi-channel fluorescent optical fibers, providing external RS485 communication, 간섭 방지, and corrosion-resistant design.

Application functions of fiber optic temperature controller system for dry-type transformers
1.1 실시간 모니터링
The data collection density can be set according to customer needs, and the system will collect data regularly based on the set parameters. 그 다음에, it will be displayed in table form or curve drawing to achieve real-time monitoring. Real time monitoring of equipment operation status; Real time monitoring and recording of reactor temperature.

1.2 Basic functions
1) Temperature data query

1. You can query temperature data for specified dates, browse, print, and export to Excel.

2) Historical temperature data storage

1. Permanently record temperature data

Introduction to fiber optic temperature controller for dry-type transformers
2.1 주요 기능
The fiber optic temperature controller is embedded installation. This product has unique technical advantages in temperature measurement in special environments such as high voltage, 강한 전자기 간섭, 등. The temperature hotspot and measurement signal receiving part of the fluorescent 광섬유 온도 센서 do not use electrical connections, which can work with high precision and stability for a long time, greatly improving its application range. The fiber optic temperature controller has high accuracy and sensitivity, is resistant to high pressure and can be remotely monitored, has a long lifespan, is small in size, makes instrument maintenance simple and convenient, and ensures safe transportation.

2.2 주요 기능
Provide three winding temperature measurement; 자동/수동 시작 정지 냉각팬 기능; 채널별 표시값에 대한 디지털 보상 기능
The digital tube displays the temperature of the transformer’s hot spot on a circuit;
블랙박스 기능 제공, which can record temperature data and historical maximum temperature before three power outages;
변압기 도어 캐비닛 포인트 개방 알람 기능 제공;
Provide functions such as over temperature alarm, fault alarm, 여행, 등
RS485 통신 기능 제공, 시간 표시가 있는 통신은 타이밍 또는 MODBUS-RTU 프로토콜을 수신할 수 있습니다. (F 함수)
2.3 추가 기능
제공하다 4 독립적인 4-20mA 아날로그 전류 출력 기능; (E 기능)
PTC 비선형 저항 감지 온도 측정 보호 기능; (C 함수)
권선 온도 상승률, 철심 온도 상승률 알람 기능;
통신 프로토콜은 Profibus와 같은 방법을 채택할 수 있습니다., IEC60870-5-103, 이더넷 통신, 등;

광섬유 온도 센서, 지능형 모니터링 시스템, 중국의 분산광섬유 제조업체