Selection and Use of Agricultural Electric Motors
Introduction
The need of agricultural activities has increased greatly resulting in increased use of electric motors. As we all know, electric motors are an important part of industrial production, and their use has been extended to agriculture. So it is important to choose the right agricultural electric motor for some specific needs. This article will introduce the selection and use of agricultural electric motors
Basic knowledge about electric motors
Electric motors are machines that convert electrical energy into mechanical energy by means of electromagnetic induction. Motors for medium and low voltage power are better for agricultural use. AC motors are more widely used for agricultural purposes due to the availability of inexpensive AC power. Generally an AC synchronous motor, induction motor, or DC motor can be used for agricultural production. The selection of an agricultural electric motor must begin by choosing the type of motor, the power (or output current rating) of the motor, and the parallel or series connection of the motor.
Selection
The selection of an agricultural electric motor should firstly take into consideration the following parameters characteristics:
1. Voltage: The voltage of the motor should be adapted to the supply voltage, and the selection should comply with relevant regulations and requirements.
2. Motor power: The motor should be chosen according to the load characteristics and the parameters required by the equipment. When selecting the motor power, the start-up moment and the motor starting time should be considered.
3. Motor speed: The nominal speed of the motor should be adapted to the speed required by the equipment, and the speed range should also be determined.
4. Efficiency: It is important to select the most efficient motor for the specific application in order to improve the operating efficiency of the machine, reduce the energy consumption and extend the life of the motor.
5. Protection class: Protection classes include waterproof and dustproof levels, IP55 and IP67 are commonly used. The required protection grade should be determined in accordance with actual conditions.
6. Ambient temperature: Determine the temperature of the ambient air where the motor works and choose the appropriate cooling type.
7. Cooling system: Cooling can be achieved by air cooling or water cooling, and the choice depends on the power of the motor.
Installation and Use
1. Positioning: When installing an electric motor, it is important to make sure it is properly positioned. The mounting location should be firm and level, while the motor must be securely mounted and supported.
2. Wiring: The wiring should be done in strict accordance with the wiring diagram. The wiring should be connected firmly and reliably, and the correct wires should be used.
3. Lubrication: Motors running for long periods of time require regular lubrication. The lubricating oil should be chosen according to the manufacturer’s instructions, and the amount of lubrication should be appropriate.
4. Maintenance: Regular inspection and maintenance is required for the motor. The user should keep abreast of the work status of the motor, perform regular cleaning and inspection and check that there is no abnormal phenomenon.
Conclusion
Agricultural electric motor use is an important part of agricultural production, and the correct selection and use is of great importance. Proper selection, reliable installation and regular maintenance are essential to ensure a good performance of the motor. To sum up, the selection, installation and use of agricultural electric motors must take into consideration the factors mentioned in this article.
