With the popularity of programmable constant temperature and humidity chambers, many people may have more and more different questions in the process of use. Today, Xiaobian will explain the electrical knowledge of programmable constant temperature and humidity chamber compressors.
The programmable constant temperature and humidity chamber compressor is mainly divided into "primary loop" and "secondary loop". The “primary circuit†is an electrical circuit in which primary equipment is connected to each other to form power generation, transmission, distribution, and other production. “Primary equipment†refers to the electrical equipment used on the main system of power generation, transmission, and distribution. The “secondary circuit†is a secondary circuit that connects to form an electrical circuit that supervises, regulates, controls, and protects the primary equipment. “Secondary equipment†refers to equipment that monitors, controls, protects, and measures “primary equipmentâ€, such as operating switches, automatic control equipment, power supply devices, and measuring instrument relays.
The programmable constant temperature and humidity chamber compressor has different "primary loop" composition and original components according to the power supply voltage and starting mode. Generally, the low voltage is 380V power supply. The starting current of the low voltage and high power motor is large, and the starting current is 5~7 times of the rated current when it is directly started. Therefore, in order to prevent the instantaneous change of the voltage and current, and the peak current forms an impact on the power grid, causing the power grid to overload, causing the voltage to change abnormally, affecting the operation of other equipment. Therefore, the buck start mode is generally adopted, including star-delta, soft start and variable frequency start.
Summary of the small series: Today, the electrical knowledge of the programmable constant temperature and humidity chamber compressor is explained in great detail. I believe that after understanding this knowledge, the user also has certain certainty in the acceptance and use.
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