WEG motor skills are we want to know more, this can help us in the usual use of smooth use of it, but for WEG motor we want to grasp not only the use of skills, but also to understand its daily protection, then with the Lanhai electromechanical small make up a look at the daily maintenance of WEG motor protection!

　　I. routine protection of the motor

　　The daily protection is important to reduce and avoid the motor in the operation of the fault is appropriate, the most important part of which is to visit and timely sweep away any abnormal phenomenon caused by the root. After the emergence of the incident, careful analysis of the incident, the adoption of countermeasures, is to reduce the number of incidents and repair stop table to improve the motor running power is essential technical work. The daily protection of the motor is of course very important for its normal operation, but the motor in operation will often encounter many emergencies, such as short circuit, overload, break flat. In order to prevent the motor from being damaged under these conditions, some operation protection measures must be taken to keep the motor clean. The motor is not allowed to enter the water, oil, dust, etc., and regularly remove the motor inside and outside of the dust. Be careful that the load current does not exceed the rating. Pay attention to check the bearing heat, oil leakage and other conditions, especially according to the rules of refueling. The temperature rise of the motor shall not exceed the rating.

　　Two, asynchronous motor overload reason

　　Asynchronous motor overload reasons can be roughly divided into the following several conditions. (1) from the drag of mechanical equipment. Such as drainage and irrigation machinery waterway blockage, machine shaft different heart, etc., the formation of motor load is too large, or even blocking rotation. Because the motor itself poor operating conditions. Such as poor ventilation, the surrounding environment temperature is too high, motor mechanical part of the fault and other reasons caused by motor overheating, insulation level reduced. Or even short circuit. (3) because the quality of the power supply network is not good, such as low voltage, three-phase imbalance and other reasons to form the motor current increase.

　　Three, the correct choice of motor basic principles

　　The motor's mechanical characteristics, starting, braking, speed regulation and other control functions shall meet the requirements of mechanical characteristics and production process. The influence of the motor's operation process on the quality of power supply (such as voltage fluctuation and xie bo disturbance) shall be within the allowable range. The temperature rise of the motor shall be within the limit of the power of the motor as determined in Kiev according to the predetermined operating system and cooling method; According to environmental conditions, operating conditions, device methods and transmission methods, the structure, device and protection mode of the motor are selected to ensure the motor's reliable operation; Comprehensive consideration of several investment operation costs, the entire drive system economy, energy saving, reasonable, reliable and safe.

　　Basic technical requirements for motors

　　The basic technical requirements of the motor include: rating; Operating system and quota; Operating conditions; Insulation grade and temperature rise; Dielectric function; Shell protection class; Cooling method; Structure and installation mode; Line end marks and rotation direction; Outline and device dimensions and their tolerances; Noise and vibration limits; Electrical function; Duration of operation or reliability; Apparent mass; Safety function of motor.