ABB 软起动器PSE、PSR、PST、PSTB系列；PST 高考
软起动器
Soft starter
当第一台电动机出现时，工程师就一直在寻找一种方法，避免
When the first motor appeared, the engineer was looking for a way to avoid it.
在电动机起动时出现的电气和机械问题。自20世纪80年代初，
Electrical and mechanical problems arising from motor starting. Since the early 1980s,
ABB就一直生产软起动器，并且拥有宝贵的经验。如今这些经
ABB has been producing soft starters and has valuable experience. Now these classics
验也融入到产品系列的设计中。 新推出的PST系列是ABB在
The test is also integrated into the design of the product series. The latest PST series is ABB in
软起动技术上的一次重大进步。应用了现代电力电子学中的智
A major progress in soft start technology. The application of intelligence in modern power electronics
能电路和软件，ABB开发出的软起动器可以出色地使用电子元
The soft starter developed by ABB and circuit can use electronic element excellently.
件来控制电动机起动和停止时的电流和电压，同时还添加了几
Parts are used to control the current and voltage when the motor starts and stops.
种设计特性。
Design characteristics.
机械和电气问题的解决方案
Solutions for mechanical and electrical problems
交流电动机 — 被称做“工业的驮马”，用于驱动风机、压碎
AC motors, known as "industrial pack horses", are used to drive fans and crush them.
机、搅拌机、水泵、输送带等设备。在全世界的生产工厂里，
Machines, mixers, pumps, conveyor belts and other equipment. In a production plant around the world,
它经常引发不必要的转矩和电流峰值，同时造成多方面的损
It often causes unnecessary torque and current peaks, and causes various losses.
坏，其中包括：
Bad, including:
电气问题
Electrical problems
在直接起动或星三角起动中产生的电压和电流突变，带来了大
The sudden change of voltage and current caused by direct start or star delta start brings great trouble.
量的电气问题。这些突变现象可能使得本地电网过载，并产生
Electrical problems of quantity. These mutations may cause overloading and generation of local power grids.
不可接受的电压波动，从而影响与电网连接的其他设备
Unacceptable voltage fluctuations, thus affecting other devices connected to the power grid.
