With the continuous innovation of dry-type transformer technology and the continuous improvement of the market's requirements for transformer grades, the application of electronic temperature control on high-grade and large-capacity dry-type transformers has gradually been found to be extremely susceptible to high-voltage and high-frequency electromagnetic interference, resulting in temperature jumps or failures. The tripping of the transformer will bring direct or indirect economic losses to the user, and even the explosion of the transformer will cause a safety accident, with serious consequences.

When the rated capacity of the transformer reaches 10000KVA and above, or the rated voltage of the low-voltage terminal of the transformer reaches 10KV and above, strong electromagnetic field interference will be generated inside the transformer, and electronic temperature control equipment cannot work normally under such conditions.

The principle of fluorescent optical fiber temperature measurement fills the deficiencies of this technology from cost performance to stability

The high-end dry-type transformers that use our company's FTM series products for safety monitoring are all used in national or provincial and municipal key projects such as national west-to-east gas transmission, south-to-north water transfer, high-speed rail power distribution, CNG projects, and urban subway power distribution. And as the influence of the products in the industry gradually increases, the products are exported to overseas!

The optical fiber temperature measurement technology can directly measure the hot spot temperature directly through the sensing probe placed in the winding, and provide users with direct and dynamic measurement, which has the advantages of direct, real-time and accurate.

The measurement and signal transmission of the sensitive components of the optical fiber temperature measurement system are completed by light without the introduction of electrical signals. It is very suitable for direct temperature measurement in the high voltage and strong magnetic field environment inside the transformer, and at the same time, the insulation performance of the transformer can be guaranteed.