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An inverter (also known as a variable-frequency drive, VFD) is an electrical control device that applies frequency conversion technology and microelectronics to control AC motors by adjusting the frequency of the motor’s Power Supply. With the continuo...

Yueqing, Wenzhou, China — August 16, 2025 — Zhejiang Sosiat Electric Technology Co., Ltd. successfully hosted the “Defining the Future — Motor Soft Starter and Variable Frequency Drive (VFD) Salon” from August 15 to 16, 2025, in Yueqing, Wenzhou. The two-day event brought together over one hundred experts, scholars, and enterprise representatives from across China’s motor control, power electronics, and automation industries.

In the rapidly evolving field of industrial automation,SOSIAT's frequency converter technology has emerged as a game - changer. A frequency converter, also known as an inverter, is a power - electronic device that can change the frequency and voltage of an a...

In modern industrial operations, the starting of motors is a crucial aspect. Traditional direct - start methods often result in large - current surges, which can reach 5 - 7 times the rated current. These surges not only put a strain on the power grid but al...

Using digital microprocessor to manage data and communication, using signal hierarchical processing and isolation technology, the system has strong anti-interference ability. And the equipment control is real-time, efficient, stable and reliable. Advanced optical fiber transmission control technology is used to realize the trigger and detection of high voltage thyristor, as well as the safe isolation between high and low voltage control circuits. High frequency power isolation and transmission technology is used to provide safe and reliable power supply for electronic devices working in the high voltage section. The static and dynamic voltage equalization absorption technology of resistiv...

A solid state soft starter is an electronic device used to control the voltage applied to an AC motor during startup. By using thyristors (SCRs) or other semiconductor devices, soft starters limit the initial inrush current and reduce mechanical stress on the motor and connecting equipment. The main features of solid-state soft starters include: the soft starter takes up less space than traditional starting methods such as autotransformers. The advantages of solid state soft starters include: the motor voltage gradually increases over a predefined period of time. Customizable starting profiles: Users can adjust parameters such as ramp time and starting torque.