건식 변압기 권선의 가장 안전한 온도 측정 방법은 무엇입니까?

Overview of solutions for fluorescent fiber optic temperature controllers for dry-type transformers
에 지정된 측정 범위 “변압기용 전자 온도 조절기” (JB/T7631-2016년), Pt100을 전통적인 온도 센서로 사용합니다., 1000V 미만으로만 제한 가능, 그리고 이 센서는 금속 재질로 만들어졌습니다., 안전 위험을 초래하는 것. 그러므로, 변압기 권선 온도를 측정하기 위한 온도 센서 프로브 및 리드는 요구 사항이 더 높습니다..

The fiber optic temperature controller uses our company’s independently developed 형광성 광섬유 온도 감지기 온도 감지 소자로. 이 온도 감지 소자는 전자기 간섭에 영향을 받지 않으며 고전압에 강합니다 (1000.4m의 지상 리드에 KV/fiber). 형광 광섬유 온도 측정은 온도 측정 소스의 잠재적인 안전 위험을 완전히 해결하고 변압기의 안전 수준을 향상시킵니다.

Target of 형광성 광섬유 온도 측정 체계 for dry-type transformers
For the operating environment of dry-type transformers, isolation and shielding from external electrical interference signals are achieved from the power supply, signal input end, signal output end, and temperature control box shell.
금속 물질 없음, 본질 안전.
진동에 반응하여, 먼지, 습기, 석유 및 기타 현장 작업 환경, 다층 보호 조치는 광섬유를 보장하기 위해 취해집니다. 온도 조절기 전자파 적합성이 우수합니다., 안정적이고 신뢰할 수 있는 작동 보장.
Design principles of fluorescent fiber optic temperature measurement host for dry-type transformers
Principle of practicality
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 fiber optic temperature measurement system for 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, 정밀, 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, 및 끝 온도 감지 끝. ST 커넥터는 광전 모듈과의 연결 부분입니다.; 광섬유 케이블은 전송 부분입니다., 안쪽으로 석영 섬유로. 석영 섬유는 외부에 코팅과 클래딩이 있습니다, 가장 바깥쪽 부분에 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. After the excitation stops, the relationship between the decay time constant of fluorescence afterglow and temperature is a quasi exponential function. The temperature can be obtained by measuring the time constant of afterglow; 광섬유는 다음의 고온에 강합니다. 200 °C 및 외경이 3mm입니다.. 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, optical path attenuation, and circuit drift in hardware. 그러므로, it is not affected by electromagnetic interference and can withstand high voltage, making it very suitable for high voltage, strong magnetic field, flammable and explosive temperature measurement occasions.

Introduction to wiring and installation of fiber optic temperature controllers for dry-type transformers
1.1 Structural framework
The system consists of three parts: a fluorescent fiber optic temperature controller, a fluorescent fiber optic probe, and fiber optic communication software.

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

All data collection, management, 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. 그러면, 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 Main features
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, 오랜 시간 동안 높은 정밀도와 안정성으로 작업할 수 있습니다., 응용 범위를 크게 개선. 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 주요기능
Provide three winding temperature measurement; 자동/수동 시동 정지 냉각 팬 기능; 각 채널의 표시 값에 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 경보 기능 제공;
Provide functions such as over temperature alarm, fault alarm, trip, 등
RS485 통신 기능 제공, communication with time mark can receive timing or MODBUS-RTU protocol (F 함수)
2.3 추가 기능
공급하다 4 독립적인 4-20mA 아날로그 전류 출력 기능; (E 기능)
PTC nonlinear resistance sensing temperature measurement protection function; (C function)
권선 온도 상승률 및 철심 온도 상승률에 대한 알람 기능;
통신 프로토콜은 Profibus와 같은 방법을 채택할 수 있습니다, IEC60870-5-103, 이더넷 통신, 등;

광섬유 온도 센서, 지능형 모니터링 시스템, 중국에 분포된 광섬유 제조업체