Hvað ætti að vera greitt athygli þegar yfirborðið hitastig af PTC rafmagns hitari eykst

The characteristics and main parameters of the safety tube of the PTC electric heater are the rated current, which refers to the larger working voltage that the safety tube can withstand after breaking. The working voltage on both sides of the fuse is much lower than its rated current during connection. There are many types of fuses. The commonly seen fuse keys can be divided into three categories: glass tube fuses with low discrimination ability, ceramic tube fuses with high discrimination ability, and polymer self-healing fuses made of PPTC plastic polymers. Electric heaters can burn without the temperature response of professional temperature controllers and humidity sensors such as thermal resistance platinum thermal resistance. Their temperature regulation depends on the characteristics of their raw materials, so the product is much higher than other products. When applying safety tubes, the normal rated current should exceed the reasonable working voltage of the power circuit. The rated voltage is the large amount of current that occurs during the permanent operation of the safety tube. Assuming the holding current is Ir, the rated voltage of the fuse tube should be the reduction rate of different standard fuse tubes. The higher the working temperature, the hotter the fuse monitor is during operation, and the shorter its application life. The key point here is not to confuse the gas temperature around the safety tube with room temperature. PTC ceramic heaters are thrifty and have a long service life.

As the surface temperature of the PTC electric heater increases, the power increases. Please pay attention to the application of PTC electric heaters and furnaces. The PTC heater has an automatic constant temperature function. No temperature control system is required. Simply turn on the power. Use a positive temperature coefficient heating plate to heat liquids (such as water), and the dried positive temperature coefficient heating plate will not be damaged. If a positive temperature coefficient heater is accepted to heat cold air, the positive temperature coefficient heater of the high-temperature fan will not be damaged without air supply. Has a long application life, which can exceed 10 years in normal environments. Reliable work, using temperature control inside the PTC heater to achieve over temperature. Unstable working voltage width: A change of twice the working voltage has little effect on surface temperature. If multiple PTC electric heater heating boards are applied simultaneously, parallel connection method should be adopted instead of series connection. The different heat dissipation rates result in significant changes in the heating power of PTC heaters. After startup, the heating power stabilizes from high to low. The power stability is related to the application conditions. For a unified type of PTC electric heater heater heater, the power can vary several times depending on the application conditions. Electronic heaters have fast heating response, accurate temperature control, and generally follow high heat.