Three-phase AC induction motors have become a norm in almost every industry due to their wide number of applications. However, directly connecting them to the power source is not an option due to their unique starting characteristics. A direct start can cause a huge surge current to flow into the motor—almost 6 times its rated capacity. This can put strain on the supply lines as well as the motor’s internal structure.
In order to eliminate this problem, several methods have been created throughout the years—some involving autotransformers, some reactors, and so on. Modern electrical and electronics components have produced a comprehensive solution to all kinds of motor-starting problems known as soft starters.
At a glance, soft-starters offer the following:
SOLCON USA provides excellent medium voltage soft starters that provide an ideal solution for all medium voltage motor applications so that all sophisticated control operations are performed smoothly, efficiently and safely.
The HRVS-DN is a medium voltage soft starter and is a complete package including in-line contactor, bypass contactor, disconnect switch, sitting perfectly into any custom switchgear. Applicable for pumps, hydraulic systems, fans and blowers, conveyers and compressor, the Soft Starter kit packs the following features:
These features may be associated with any typical medium voltage range soft starter, so Solcon has embedded advanced built-in functions that are hard to counter in the market. The analog output is programmable as 0 – 10VDC, 4-20mA or 0-20mA. Additonally, the starter can perform a motor insulation test, especially useful for pumps installed in harsh environments.
Special Tacho Feedback Circuitry can provide valuable information regarding a motor’s health while a relay PCB provides a user-friendly way to start the application from a cabinet-installed MVD.
Solcon has certifications obtained from top international regulatory bodies such as IEC, IEEE, NEMA, UL/CUL and DIN VDE. Overall, Solcon’s soft starters have the ability to improve an industry’s efficiency, robustness, safety.
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