The high altitude, low air pressure, lack of oxygen, high cold, large temperature difference, and large wind and sand in the plateau are extremely harsh tests for the ventilation and heat dissipation conditions, insulation and protection of the motor.Plateau motor manufacturers remind that if ordinary motors are directly applied to the plateau conditions, it may cause fever or damage due to the deterioration of operating conditions.
Why is it necessary to choose a special motor for plateau conditions? The main reason is that high altitude conditions will cause all kinds of unlucky effects on the operation of ordinary motors.
First, the altitude will cause the insulation strength of the motor to decrease, and secondly, the breakdown voltage of the electrical gap of the motor will decrease.Moreover, the corona initial voltage is low during the operation of high-power and high-voltage motors.
At high altitude, the cooling result of the atmosphere medium is low, and the heat dissipation capacity is reduced, which will cause serious fever in ordinary motors.The low air pressure in the plateau area and the high volatility of lubricating oil (grease) lead to increased machine wear.Therefore, ordinary three-phase asynchronous motors cannot be used for a long time in plateau conditions, because the normal use temperature of general motors is -5°C to 40°C, and the address should be below 1000m above sea level.
And with the increase in altitude, motor manufacturers will optimize the key points and performance inspection indicators of plateau motor design according to the difference in operating conditions of plateau special motors. Therefore, they derive a new and optimized design of plateau special series motors to meet the requirements. The output power and the upper limit of the external dimensions are required, and the protective layout is adapted to the detailed operating conditions.
Other Hubei Wanbang Motor Factory reminds that plateau motors are also divided into general-purpose plateau motors and plateau outdoor motors.General purpose plateau motors only need to consider ventilation and heat dissipation issues. Ordinary motors can be used in plateau conditions by stricter inspections according to the altitude temperature rise limit or improved ventilation and heat dissipation conditions; plateau outdoor motors can be used in plateau conditions except for the insulation strength, electrical clearance, and temperature rise limit. In addition to the corresponding adjustments in anti-corona methods, it is often necessary to recover extraordinary ventilation and heat dissipation methods and prevent extreme temperature differences, anti-wind and sand and other protective layouts. When necessary, design special series motors for outdoor plateaus in accordance with the detailed conditions.
Hubei Wanbang Motor Co., Ltd. is a motor manufacturer integrating R&D, design, production, and sales of three-phase asynchronous motors. It has 19 years of customization and production history of plateau special motors, and has cooperated with hundreds of machinery and equipment manufacturers for a long time. With mature technology and reliable quality, we have provided various customized solutions for three-phase asynchronous motors for more than a thousand machine equipment manufacturing customers.
