Model: A4H124-24FX P0973JN
Origin: USA
Warranty: One year

Marketable location: Nationwide

Application: PLC, DCS system spare parts module, discontinued spare parts

Variable frequency speed regulation technology is a technique that achieves the purpose of speed regulation of AC motors by changing the power supply frequency of AC motors. As we all know, there are two types of electric motors: DC motors and AC motors. Due to the easy implementation and good performance of DC motor speed regulation, DC motors were commonly used for speed regulation in production machinery in the past. However, the inherent disadvantage of DC motors is that due to the use of DC power supply, their slip rings and carbon brushes need to be frequently replaced, which is time-consuming, labor-intensive, and costly, causing a lot of trouble for people. Therefore, people hope that simple, reliable, and inexpensive cage type AC motors can also be speed regulated like DC motors

This has led to the emergence of AC speed regulation methods such as stator speed regulation, variable pole speed regulation, slip speed regulation, rotor series resistance speed regulation, and series pole speed regulation; As a result, slip motors, wound motors, and synchronous AC motors emerged. But its speed regulation performance cannot be compared with DC motors. It was not until the 1980s that variable frequency speed regulation technology emerged due to the development of power electronics, microelectronics, and information technology. Its appearance gradually replaced other AC motor speed regulation methods, and even DC motor speed regulation systems, with its excellent performance, becoming the center of electrical transmission

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