Application of Fluorescent Fiber Temperature Monitor in Abnormal Temperature Rise of Electrical Equipment-INNO

전원 공급 거리가 길기 때문에, 여러 장비 구성 요소, 높은 전기 부하, and mostly continuous operation of the 6kV distribution line in the oilfield, the electrical equipment of the substation supplying power to the line has the characteristics of heavy load and high current during operation. 그러한 조건에서, 변전설비의 연결 나사가 느슨해졌거나 각 부품의 부품 접촉이 불량한 경우, 높은 전류가 지속적으로 흘러 장비의 온도가 비정상적으로 상승합니다., 결과적으로 전기 장비의 재료 성능이 저하됩니다.. 적시에 발견하여 수리하지 못한 경우, 장비의 용접점의 과열 및 용융으로 인해 심각한 사고가 발생할 수 있습니다.. 즉,, 고전압 장비에 결함이 발생하는 동안, 기온이 크게 오르겠다.. 그러므로, 작동 중 고전압 장비의 온도 매개변수를 모니터링하는 것은 매우 중요합니다..

Common abnormal temperature rise in substation equipment

1. Abnormal temperature rise of fully enclosed electrical equipment

최근에는, oilfield substations have gradually promoted fully enclosed electrical equipment, which combines high-voltage components such as high-voltage circuit breakers, 절연 스위치, and transformers into metal enclosed cabinets, such as GIS combination appliances and KYN series armored high-voltage switchgear. 완전히 밀폐된 전기 장비의 작동 중, 캐비닛 내부 장비에 부분 방전이 발생한 경우, 도체 연결부 온도가 비정상적으로 상승할 수 있습니다.. 숨겨진 가열 위치로 인해, operators cannot detect it in a timely manner. This can easily expand the fault, causing electrical components to break down and burn out, and affecting adjacent equipment units, resulting in a malignant power outage accident.

2. Abnormal temperature rise of high-voltage circuit breakers

During the normal operation of high-voltage circuit breakers, the energy generated by the long-term working current is converted into thermal energy, causing the temperature of electrical materials to rise but not exceed the specified range; When the conductive circuit is abnormal, it will cause the temperature of the electrical material to increase beyond the specified range, accelerate the oxidation of the dynamic and static contacts, 접촉 저항을 증가시키다, 가열 온도를 더 높이십시오., 결과적으로 전기 재료의 기계적, 물리적 특성이 감소합니다.. 온도가 재료의 융점을 초과하는 경우, 그러면 두 접점이 녹을 것입니다, 결국 차단기가 열리지 않는 전기사고로 이어지게 됩니다..

예를 들어, 변전소의 금속 장갑 폐쇄 개폐 장치 (스위칭 스테이션) 모두 소형차형 차단기를 사용합니다.. 손수레 플러그를 밀어 넣으면, 힘이 부족하거나 제자리에서 흔들리지 않는 경우, 동적 플러그와 정적 플러그 사이의 접촉 불량이 발생합니다., 과열을 일으키는. 작동 중, 접촉이 녹을 것이다, 상간 단락을 일으키고 전체 스위치 소손의 악성 사고로 이어질 수 있습니다..

3. Abnormal temperature rise at conductor connections

The connection between various electrical equipment in the substation mainly relies on screws for crimping, as well as various methods such as connecting with the main busbar and branch busbar. Due to the limitation of voltage level, it is necessary to consider the requirements for safe distance to ground and the safe operation of connecting busbars. 그러므로, an insulation sheath has been installed and enclosed. This makes the connecting wires between devices have many characteristics that are not conducive to operation, such as high installation distance from the ground and strong sealing. If the screws at the connection are not properly maintained or run for a long time, external factors such as wind force and vibration of electric power during operation can cause the screws to loosen and oxidize, resulting in overheating of the contact points at the busbar connection due to excessive contact resistance, which can lead to a malignant accident of large-scale power outage in the entire substation or section of the busbar.

광섬유 온도 online monitoring technology

1. Real time measurement of temperature data has been achieved, and operators can visually determine whether the equipment is running normally based on the operating temperature data, improving the timeliness and accuracy of discovering equipment defects caused by overheating.

2. The data received by the fiber optic temperature transmitter collection terminal (온도 모니터링 장치) can be compared with the set value to achieve functions such as over temperature alarm, effectively preventing equipment overheating accidents caused by poor contact and other reasons.

3. The installation range of fluorescent fiber optic temperature monitoring equipment can be selected to be installed entirely or only in high load circuits, which has the advantages of strong selectivity, flexibility and convenience, and can also achieve the goal of saving investment.

적용범위 fluorescent fiber optic temperature monitoring instrument

1. Fluorescent fiber optic temperature online monitoring technology can not only monitor the real-time online temperature of the connection points of the dynamic and static contacts of circuit breakers, 부스바 연결, isolating switch blade contacts, and other electrical equipment connection points, but also be used for temperature monitoring of electrical equipment such as dry-type transformers and high-voltage cable joints. Its application prospects are very broad.

2. The application of temperature online monitoring technology can fundamentally eliminate blind spots in temperature monitoring of all contacts of fully enclosed electrical equipment, solving the problem of undetectable temperatures in the past. Fundamentally changing the management mode of operating personnel’s periodic inspection of contact temperature, improving work efficiency, saving manpower and material resources, and achieving significant economic benefits.

3. Based on online temperature monitoring data, the operation status of electrical equipment can be determined, and the maintenance cycle and items can be determined, providing decision-making basis for substation status maintenance.

4. The real-time monitoring data of temperature online can serve as important node data for equipment operation monitoring in unmanned substations, providing strong technical support for substation operation monitoring and defect collection.

5. Real time online temperature monitoring can enable substation operators to promptly detect signs of high-voltage equipment failures and take effective measures in advance, which is of great significance for ensuring equipment operation safety and improving power supply reliability.