Siemens Access module 6DD1660-0BH0 Communication module access module plc module

 

The main results are as follows:
(1) the motor must have good chemical stability when immersed in refrigerants and refrigerated oil for a long time. The insulation material of motor is required to maintain reliable insulation performance under high temperature and high pressure, and has good resistance to refrigerants and refrigerated oil.
(2) the motor is often started under full load or overload, which requires that the starting torque is large, can run normally during overload, and can adapt to a certain range of voltage fluctuations and frequent start-up requirements.
(3) in order to improve the refrigeration capacity of the equipment, the motor is required to have high efficiency.
(4) when the motor is sealed in the steel shell of the compressor, the working environment temperature is mostly above 70℃,and the temperature rise can reach about 100℃ when working. The winding coil and insulation material of motor are required to be resistant to high temperature and aging.
(5) because the motor is vulnerable to the impact of electromagnetic force caused by starting current, the impact of refrigerants entering the shell, the thermal shock of rapid evaporation and the mechanical vibration when starting and stopping are required, the electromagnetic coil of the motor is required to have a certain mechanical strength and can withstand vibration.

 

 

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