건식 변압기 권선용 광섬유 온도 측정 시스템

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 measurement system for dry-type transformers uses a fluorescent fiber optic temperature sensor independently developed by Fuzhou INNO Technology as the temperature sensing element. This temperature sensing element is immune to electromagnetic interference and resistant to high voltage (100KV/fiber to ground lead distance of 0.4m). Fluorescent fiber optic temperature measurement completely solves potential safety hazards from the source of temperature measurement and improves the safety level of transformers. The fluorescent fiber optic temperature measurement system for dry-type transformers aims to achieve isolation and shielding from external electrical interference signals in the operating environment of dry-type transformers, including power supply, signal input, signal output, and temperature control box casing. No metallic substances, 본질 안전. In response to vibration, dust, 습기, oil and other on-site working environments, multi-layer protective measures are taken to ensure that the fiber optic temperature controller has good electromagnetic compatibility, ensuring stable and reliable operation.

Our company has actual application cases of fiber optic temperature measurement systems for dry-type transformers, which can be directly put into use.

The Function of Fluorescent Fiber Optic Temperature Sensor for Dry Transformer

Real time monitoring of transformer winding “핫 스폿” 온도

Assessable transformer operation status to enhance system reliability.

 

Real time monitoring of temperature information in transformer operation status

Can timely and effectively control loads, optimize transformer load operation configuration.

 

Timely monitoring of alarm information

During peak load operation, it can prevent unplanned and sudden faults caused by transformer overheating.

 

Long term online monitoring of transformer temperature trends

Can construct a transformer temperature change trend file to achieve pre management and risk prediction.

 

Provide dynamic, 실시간(Real-time), secure, and reliable information

The cooling system can be started in a timely manner to extend the service life of the transformer.

---

기본 기능

1. Three winding temperature measurement; Automatic/manual start/stop of cooling fan; Temperature display value compensation function for each channel 2. 블랙박스 기능 제공, which can record the temperature data of the last power outage and the highest historical temperature; 3. Digital tube display; 4. Provide transformer door cabinet point opening alarm function; 5. 공급하다 1 set of over temperature alarm contacts (1 평상시 열림, 1 normally closed); 6. 공급하다 1 set of over temperature trip contacts (1 평상시 열림, 1 normally closed); 7. 공급하다 1 set of fan remote transmission contacts (1 평상시 열림, 1 normally closed); 8. 공급하다 1 set of temperature controller fault alarm contacts (1 평상시 열림, 1 normally closed);

Customized features

1. 공급하다 1 iron core temperature measurement and 2 iron core over temperature alarm contacts (1 평상시 열림, 1 normally closed) (I function); 2. RS485 통신 기능 제공, communication with time markers, 시간 동기화를 수신할 수 있습니다., MODBUS-RTU 프로토콜 (F function); 3. Fan fault diagnosis function and provision of fan fault alarm contacts (L function); 4. 공급하다 4 independent 4-20mA analog current output functions (E function); 5. Provide temperature measurement and control for the entire computer room environment; (G function) 6. Alarm function for winding temperature rise rate and iron core temperature rise rate; 7. The communication protocol can adopt methods such as Profibus, IEC60870-5-103, Ethernet communication, 등;

On site installation case of fiber optic temperature measurement device for dry-type transformer winding

The advantages of fluorescent fiber optic temperature sensors

Fluorescent temperature sensors belong to all optical measurement devices

전기 신호가 없는 광학 신호만이 진정한 수동 프로브입니다.

높은 절연 및 전압 저항

The fluorescent fiber optic temperature sensor can withstand a power frequency voltage of 100kV.

Fluorescent optical fibers are inherently immune to electromagnetic interference

감지의 정확성과 데이터 전송의 안정성은 전혀 영향을 받지 않습니다.

강력한 오염 방지 섬락 능력

The fluorescent fiber optic sensor is covered with a jacket with strong stain resistance to ensure the safety of the system.Temperature sensitive materials have high reliability

온도 센서의 온도 감지 재료는 희토류 재료입니다., which has a long-term stability and has been successfully applied in equipment monitoring for over 30 years of service life.Accurate positioning measurement

온도 감지 프로브는 부피가 작아 설치 위치를 정확하게 찾을 수 있습니다..

온도 측정 주기가 다음보다 작습니다., 높은 실시간 성능

온도 측정 주기가 다음보다 작습니다. 1 초, 알람의 적시성을 완전히 보장할 수 있습니다..