Comment utiliser des capteurs à fibre optique pour mesurer la température lors de la mesure électrique de la température-INNO

Mesure de température électrique

De nombreux paramètres changent pendant le fonctionnement des équipements électriques, telles que les grandeurs physiques, y compris la tension, actuel, sound, vibration, température, humidité, etc., ainsi que les quantités de produits chimiques, y compris la teneur en gaz du pétrole, teneur en micro-eau, etc.. Ces paramètres subissent des changements différents lorsque l'équipement est dans des états différents. Évaluer l'état de l'équipement en collectant et en observant les changements et les tendances de ces paramètres. Bien sûr, tous les appareils n'ont pas besoin de surveiller tous les paramètres. Les équipements haute tension doivent se concentrer sur l'observation de la tension, actuel, et température du point de contact. S'il s'agit d'un équipement rempli d'huile, il convient de prêter attention aux informations telles que la température de l'huile et la teneur en gaz de l'huile pour déterminer l'état de l'équipement.

Mesure de température d'équipement électrique

The temperature of the conductor is closely related to its current carrying capacity, in order to maximize the utilization of existing transmission lines. By monitoring the wire temperature and recording it in real time, it is possible to maximize the utilization of transmission lines while preventing accidents caused by wire overheating.

Electrical temperature measurement methods

The safety and reliability of power equipment is an important link in ensuring the safety of transmission and distribution as well as the power grid. En tant qu'équipement électrique largement utilisé, enclosed switchgear has also received more attention to its safety and reliability. The temperature measurement device for the electrical contacts of the equipment inside the enclosed switchgear used to be unable to diagnose the working status of the contacts and can only give an alarm for abnormal temperatures. When an abnormal temperature occurs, the switchgear is already in or approaching a fault state. Donc, the research and development of a new high-precision and highly reliable online monitoring and fault diagnosis system for switchgear is of great significance.

Electrical temperature measurement device

The optical fiber temperature sensing device is installed on the contact of the equipment to be measured, and the optical fiber modem installed on the shell inside the switch cabinet is connected with the sensing device through the optical fiber cable, and then the demodulator outputs the temperature data for further analysis and utilization.

Electrical contact temperature measurement device

The transmission distance of optical fibers can reach hundreds or even tens of kilometers, et le electrical contact temperature measurement appareil, which is easy to measure, is an auxiliary device used for temperature detection of electrical contacts in electrical systems. It has been widely used in the field of electrical equipment; The existing electrical contact temperature measurement device that is convenient for measurement includes a fixed plate, a detection box, a transmission wire, and a temperature measurement probe. The bottom end of the detection box is connected to the central area at the top of the fixed plate, and a display screen is set in the upper half of the front wall of the detection box. The temperature measurement probe is electrically connected to the detection box through the transmission wire; When using the existing electrical contact temperature measurement device that is easy to measure, the detection box is first transported to a designated location, and the temperature of the electrical contacts is detected through a temperature measuring probe. The temperature signal detected by the temperature measuring probe is transmitted to the detection box through a transmission wire, with low loss, anti-interférence électromagnétique, and very ideal safety. En même temps, it carries a large amount of data, and the optical cable itself is an insulation material, ce qui est très approprié pour la transmission longue distance d'informations volumineuses dans le système électrique.