How to use fiber optic sensors to measure temperature in electrical temperature measurement-INNO

Medição de temperatura elétrica

Existem muitos parâmetros que mudam durante a operação de equipamentos de energia, como grandezas físicas, incluindo tensão, atual, som, vibração, temperatura, umidade, etc., bem como quantidades químicas, incluindo conteúdo de gás no petróleo, teor de micro água, etc.. Esses parâmetros sofrem alterações diferentes quando o equipamento está em estados diferentes. Avalie o estado do equipamento coletando e observando as mudanças e tendências destes parâmetros. Of course, nem todo dispositivo precisa monitorar todos os parâmetros. Equipamentos de alta tensão precisam se concentrar na observação da tensão, atual, e temperatura do ponto de contato. Se for um equipamento cheio de óleo, atenção deve ser dada a informações como temperatura do óleo e conteúdo de gás no óleo para determinar o status do equipamento.

Medição de temperatura de equipamentos elétricos

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. As a widely used power equipment, 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. Portanto, 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, e o electrical contact temperature measurement dispositivo, 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, interferência anti-eletromagnética, and very ideal safety. Ao mesmo tempo, it carries a large amount of data, and the optical cable itself is an insulation material, which is very suitable for long-distance transmission of large data information in the power system.