Temperature control system of epoxy resin dry type transform

The temperature display controller is set on the epoxy resin dry-type transformer to display and control the operating temperature of the transformer winding, so as to ensure the normal service life of the transformer. The temperature sensor Pt 100 platinum resistor is inserted into the low voltage winding. After the temperature signal is obtained, it is processed by the circuit and displayed on the control board circularly. There are temperature setting, fan manual / automatic start stop, fault, overtemperature sound signal alarm, over temperature automatic brake and other functions. It has the specified ability to prevent electromagnetic interference. At the same time, the intelligent computer interface is reserved to realize remote control. Epoxy resin dry-type transformer is equipped with low noise width fan, which can reduce winding temperature, improve load capacity and prolong transformer life. With forced cooling, the rated capacity can be increased to 40-50%.

　　The excellent performance of dry-type transformer is especially reflected in the noise. Noise is an important factor that affects and restricts the development of amorphous alloy dry-type transformer, and it is also a major topic in the design and manufacture of this new product. The standard of "6kv-500kv power transformer sound level" of JB / T 10088 does not specify the noise of amorphous products, but the measured value of sound pressure level of the new products produced by the company is obviously lower than the noise requirements of silicon steel plate products with the same capacity in the standard, reaching the sound level of oil immersed transformer. The solution of noise problem makes it possible to popularize the amorphous dry-type transformer.