The key reason for the power outage of the Dalian motor casing is that a certain lead insulation layer inside the motor is damaged and touches the casing; The damage to the motor winding caused power leakage between the motor stator and casing. It is commonly seen that long-term exposure to high and low temperature natural environments leads to a reduction in the insulation layer of the motor due to moisture, leading to induced electrification of the casing. At this point, a grounding megger can be used to accurately measure the grounding resistance between each winding resistance of the motor and the casing. If it is below 2M Ω, it indicates that the motor has been severely damped, and the stator winding resistance of the motor should be baked to remove moisture.
There are many functions of motor casing, but the job responsibility is to maintain the dryness of the casing. In practice, let's listen to the detailed introduction of the motor casing manufacturer. At the beginning of the inspection of mechanical equipment, such as the inspection of the rotating shaft, it is a soft front motor shell; Rolling bearings should be lubricated as much as possible; The cooling fan and air guide cover should not collide, and the motor base should have a fixed interest rate. Subsequently, the power circuit should be inspected and the motor wires should be checked to see if they are connected. Electric motors operate for a very long time and can be disassembled for maintenance. In natural environments, the motor should be kept dry, the surface of the motor should be kept clean, and the air inlet should not be harmed by obstacles such as dust and chemical fibers.
What is the reason for the electrification of the micro Dalian motor casing
There are mainly two aspects: firstly, the insulation of the motor wires is damaged; One is the motor winding, which will directly cause local combustion, leading to leakage between the internal stator and shell structure. The maintenance and management method is as follows: The motor that measures the insulation resistance of the main and auxiliary windings of the megohmmeter can be connected to the megohmmeter through the testing system, and the motor shell receives the other end of the megohmmeter. If the resistance below is 2M, the development of the motor will be very humid, and the stator winding of the motor needs to be dry. If the pointer of the meter swings, it indicates that the insulation has basically broken and there is a defect in the insulation layer.
Small motor casings are commonly used in various manufacturing industries such as instrument panels, automation technology, instrument equipment, smart cards, electronic devices, controllers, industrial production controls, instrument panels, and high-precision mechanical equipment. In instrument equipment and instrument panels, they belong to the ideal casing. The key to solving the surface problem of small motor shells is the use of electrostatic induction paint.
The power rating of a motor casing motor is crucial in selecting it. If the motor casing motor has a large power rating under load, then the motor casing motor is basically operating under light load. However, the motor casing motor itself cannot fully utilize its capacity, which is similar to the meaning of talent. Moreover, if the power of the motor casing motor in operation is too low, So its performance is not very good, and it will also increase the overall operating cost.
