Due to the particularity of the motor’s operating environment and working conditions, the insulation level of the winding is very important. For example, motors with different insulation levels use electromagnetic wires, insulating materials, lead wires, fans, bearings, grease and other materials. Certain quality enhancement requirements.
Among related insulation materials, whether they are electromagnetic wires, lead wires, or auxiliary insulation materials during winding processing, the selection of their properties is directly related to the temperature rise level of the motor windings, which directly determines the reliability and service life of the motor windings. .
For situations where the ambient temperature is high, in order to ensure the normal operation of the motor, the bearings and grease involved in the bearing system have special requirements to prevent the bearing system from being systematically burned due to aging and deterioration of the grease due to high temperatures.
For motor fans, where the ambient temperature is not too high, non-metallic materials are mostly used, which is beneficial in terms of the overall processing cost of the motor and manufacturing convenience. However, for occasions where the ambient temperature of the motor is high, such as motors used in steel plants, Generally, the insulation level of the motor is designed to be no less than F level, and some even need to be upgraded to H level. When the motor’s insulation level is H level, the fan matching the motor should choose a metal fan, most of which are made of aluminum alloy.
However, it can be found from the actual sales market of motors that when a customer needs a motor with an H-class insulation level, some businesses only change the data by replacing the nameplate and directly apply the motor with a low insulation level to a high-temperature environment. The final consequences are The motor burns out in a short period of time, and some motor fans age and crack directly due to high temperatures.
For this reason, high-quality motor products naturally come from brand suppliers. Because the motor production process and management are standardized, the manufacturing cost is naturally higher. Due to the regulations, there is no freedom to replace inferior products, but from the perspective of use From a personal perspective, it is scientific and reasonable to choose high-quality motors. Naturally, inferior products will gradually lose the market.
Post time: Dec-18-2023