The motor frequent starting and braking of adaptability thanks to the inverter power supply, the motor may be no impact on current way to start at a very low frequency and voltage, and can use a variety of braking the inverter supplied rapid braking, frequent starting and braking to achieve to create the conditions so that the motor's mechanical systems and electromagnetic systems in the next cycle of alternating force, to the mechanical structure and insulation leading to fatigue and accelerated aging. 4. Cool low speed when the first issue, the impedance of the asynchronous motor is less than ideal, when the power supply is providing power to the electronic equipment device, also known as the power supply, which provides all the power of computer components require. Frequency than the end of the power losses in the larger harmonic caused. Second, ordinary asynchronous motor speed is reduced again when screw compressor manufacturers, proportional to the cube of the speed of the cooling air flow is reduced, resulting in a low speed cooling condition of the motor deterioration, sharp temperature increase, it is difficult to achieve constant torque output. 5. The motor insulation strength problems of small and medium converter, many of them are using the PWM control mode. His carrier frequency is about several thousand to hundreds of kilohertz, which makes motor stator windings to withstand high voltage rise rate, equivalent to the steepness of the motor is applied to a lot of impulse voltage, so that the motor turn insulation to withstand more ordeal. In addition, the rectangular chopper impulse voltage generated by the PWM inverter is superimposed on the motor operating voltage, the motor of the insulation would pose a threat to the insulation under the repeated impact of high pressure will accelerate aging. 1, air compressors working environment should be kept clean and dry. Cylinders shall be placed in a well ventilated area, within a radius of 15m may not be welding or hot work. 2, the gas tank and gas pipeline route should be pressure test once every two years, pressure gauge and check valve at least once a year. 3. Start the air compressor must be carried out in no-load state, to be operating normally, gradually entering the load operation. 4, open before delivery valve should be connected after the gas pipeline, gas pipelines should be kept clear, and notify the person concerned can not be twisted in order aspirated. Before the outlet was not allowed to work or stand. Gas tank should be placed in a well ventilated place air compressor manufacturer, is prohibited sunlight and high temperature baking. 5, the maximum pressure in the tank can not exceed nameplate, the valve should be sensitive and effective. 6, the intake and exhaust valves, bearings and the parts should be no abnormal noise or overheating. 7, found that one of the following circumstances, should immediately stop inspection, identify the causes when troubleshooting lease compressor manufacturers to work: water leakage, leakage or sudden interruption of the cooling water; pressure gauges, thermometers, ammeter instructions exceeds a predetermined value; a sudden increase in the exhaust pressure, exhaust valve, safety valve failure; there is abnormal sound or mechanical motor brushes where a strong spark. 8, in operation, such as when water shortages cause overheating shutdown cylinder compressor factory-made, can not add cold water immediately, the cylinder block must be natural cooling to below 60 ℃ before adding water. 9. Electric air compressor power cable installation must comply with electrical safety specifications, repeating solid grounding, electric shock protection is sensitive. Operation in case of power failure, immediately turn off the power and restart until the calls. 10, shutdown, load should be lifted, and then separating the main clutch; then stop running internal combustion engine or the electric motor. 11, after the shutdown, closed cooling water valve, purge valve was opened to release water and stored at all levels and cooler air inside the tank. When the temperature is below 5 ℃, the trap should be exhausted after the parts to leave. 12, the use of compressed air purge part, is strictly prohibited outlet align human or other devices. 13, the work is completed to release the residual gas inside the tank. Winter cooling water should be let go. Screw air compressor manufacturer in Jingdezhen compressor manufacturers _ _ Qin Wei Qin Wei Xianyang provided by Air Compressor Co., Ltd. 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 Qinwei Air into the brilliant and you work for a better future!