Inverter air compressor systems, its main function is to save energy. So the drive is from what to play a protective effect on the motor it? Here we will analyze the answers to this question. Drive to protect the motor are mainly the following aspects: over-voltage protection, under-voltage protection, over current protection, lack of protection, Reverse polarity protection, overload protection, ground fault protection, short circuit protection, overclocking protection and stall protection. Below these types of drive motors for protection a simple introduction. 1. Overvoltage protection: the inverter output voltage detection function can automatically adjust the output voltage of the inverter, the motor is not withstand overvoltage. Even when the output voltage and output voltage adjustment failure more than 110% of the normal voltage, the inverter will stop the motor through the protective effects. 2. Under-voltage protection: When 90% of the motor voltage is lower than normal voltage inverter protection shutdown. 3. Over-current protection: When the motor current exceeds 150% of the rated / 3 seconds of professional air compressor manufacturer, or 200% of rated current / 10 microseconds, by stopping the drive to protect the motor. Screw host high and low end of the housing and compressor are high-precision machining, which ensures the accuracy of the assembly after the host, between the screw and screw compressor manufacturers, wholesale adequate clearance between the screw and the host of the housing, The size of the gap has been fully taken into account the issue of the screw and the case will happen when the host is running a high temperature deformation; Over the compressor run time, the host is bound to happen each bearing wear, causing the screw to produce axial movement and radial displacement increases, the variation between the screw and the screw will, and the gap around the screw and the end surface of the housing between the host changes. Screw between hosts, between the screw and the front and rear end face, strong friction may occur between the screw and the host of the housing will make the host operating load increased dramatically, while the operating load bearing severe wear is great. As a result, the motor will be in working condition overload would seriously endanger the safe operation of the motor. The situation is serious, and if electrical protection devices insensitive reactions or failure of air compressor, you also may cause the motor to burn. Therefore, the use of screw compressors users need special attention host of repair and maintenance. Compressor host like a human heart, if the heart is not good, how can do a good job of it? So if we compressor host fails, timely maintenance side is the best policy. Compressor factory outlets, dry county compressor manufacturers, Qin Wei provided by Air Compressor Co., Ltd., Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) strong, credible, Xianyang in Shaanxi compression, separation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qin Wei Air and you hand into the brilliant, for a better future!