山東變頻器維修：變頻器和軟啟動器其實是倆種完全不同用途的產品。變頻器主要用在電機調速的地方，變頻器擁有軟起動器以及其他啟動器的性能的同時，在啟動特性上較其他的啟動器裝置也有很大的優勢。那么相比之下，變頻器的優勢有哪些呢?
Frequency converter maintenance: inverter and soft starter are two kinds of products of different uses. Frequency converter is mainly used in the place of motor speed regulation. Frequency converter has the performance of soft starter and other starters. At the same time, it has great advantages over other starter devices in starting characteristics. In contrast, what are the advantages of the converter?
山東變頻器維修
Shandong inverter maintenance
1、采用變頻器控制的電動機具有良好的動態、靜態性能。
1. The motor controlled by frequency converter has good dynamic and static performance.
2、輕載或空載條件下，或啟動期間采取減載卸載等措施時，變頻器容量可以比電動機容量小。
2. Under the condition of light or no load, or the measures of unloading or unloading during start-up, the capacity of frequency converter can be smaller than that of motor.
3、用變頻器拖動多臺電動機啟動時，即使被拖動電動機的容量有較大差異，也不會影響其啟動性能。
3. When several motors are driven by frequency converter to start, the starting performance will not be affected even if the capacities of the motors are quite different.
4、啟動轉矩大，功率因數高。因為電動機的功率因數與工作頻率有關，在電動機低速運行時工頻電源下的功率因數遠低于低頻電源下的功率因數。變頻器可以控制電動機從低頻起步，且在整個啟動過程中在接近額定電流的條件下始終保持比較高的功率因數和接近額定轉矩的輸出轉矩。
4. High starting torque and high power factor. Because the power factor of the motor is related to the working frequency, the power factor of the power-frequency power supply is much lower than that of the power factor of the low-frequency power supply when the motor is running at low speed. The frequency converter can control the motor to start at low frequency, and maintain a relatively high power factor and output torque close to rated torque throughout the starting process under the condition of close to rated current.
5、啟動完成后，對電動機而言，需要一個供電切換過程，由變頻器供電切換到電網供電。在整個過程中會出現諸如變頻器安全、電流沖擊。
5. After the start-up is completed, for the motor, a power supply switching process is needed, which is from the converter power supply to the grid power supply. In the whole process, there will be such as frequency converter safety, current shock.
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