Don't leave the quarry, or why you need a soft starter
You've probably noticed how the light "twitches" when you turn on a powerful electrical appliance. This is because the engine instantly began to pick up speed at start-up (that is, not in a second, but for its share, the torque from the nominal at once reached up to 200% of its power). There was a sharp drop in voltage - so the local power grid “blinked”. And if this voltage spike is too large, the engine will not start at all. This is fraught with many negative consequences, up to a serious breakdown of the mechanical part of the drive of your electrical appliance. We are already silent about the fact that this very overclocking "into the quarry" creates problems for other network users. Switched on devices can be damaged instantly. It is clear that no one will say “thank you” for this; rather, on the contrary, they will force you to compensate for the damage.
Soft starter
So here is a soft starter (abbreviated as soft starter, other names: soft starter, soft starter, soft start or soft starter) will slow down the slew rate and bring it into line with the nominal in a safe time. The soft starter will keep the current, voltage, etc. (that is, the parameters of the motor) by smoothly increasing the voltage on the windings of the electric motor within safe limits, so to speak, within the "limits of decency".
A properly selected and professionally tuned soft starter will make the life of your device more durable, because it will eliminate jerks, hydraulic shocks of the mechanical part of the drive, reduce stress loads on the components and working bodies of the entire engine (for example, impacts of gears in the gearbox against each other, slipping of belts). A soft starter is needed on conveyors so that the belt moves smoothly, without jerks, as well as for a smooth start of such devices as pumps, fans, centrifuges, various types of compressors - in short, everything that is powerful electrical equipment.
There are different control modes of the soft starter, because the nature of the load, motor speed and output voltage may be different .
So, for stepless acceleration and deceleration, the electric motor needs a soft starter.
What are they?
- The DS7 is ideal for simple, economical applications such as starting fans and pumps and small conveyors. DS7 is 100% compatible with xStart components. A special patented asymmetric control system expands the power limits, minimizes current drops and provides m
