Short Description:

Soft starters (soft starter) is a set of motor soft start and soft stop, novel protection features in one of the motor control device. Its main component is connected to the power supply with three charged with motor reverse parallel thyristor and its electronic control circuit.it can use a variety of methods, control of opposite parallel thyristor conduction angle to make the controlled motor input voltage changes according to the different requirements and achieve different function. Soft starter and frequency converter are two completely different uses of products. Frequency converter is used for the areas in need of speed, the output will not only change the voltage and changing the frequency at the same time. Soft Starter is actually a voltage regulator for motor starting, frequency of output voltage does not change. Converter offers all the soft start function, but it’s much more expensive than soft starter, the structure is more complex. Motor soft Starter use thread in between the power supply and the control motor soft Starter, control of thyristor conduction angle, the motor input voltage rises from zero to a preset function gradually, until the end of start up, giving motor voltage, which is the soft-start, during soft start, motor starting torque increase speed gradually increases.