Softstart UK has recently completed the development of a new range of Digital Medium Voltage Soft Starters, designed suitable for all types of induction motors, including synchronous and slip-ring types. The new Digitstart range covers both 3.3kV and 6.6kV in ratings from 60A to 700 Amps and features a completely new programming and monitoring regime.  Clearly starting motors in this category needs well considered programming and sensitive protection.

This is all provided by the 8.1ins full colour industrial PC and facilitates invaluable trend data such as previous starting data such as time to reach full speed, starting current characteristics, power absorbed and much more. All of this data is available at the central control point via ModBus or Ethernet so all start, run and diagnostic data is available to the operator.  Important optional features such as withdrawable line and bypass contactors, switch fuse disconnects and grounding switches have all been catered for and despite the comprehensive design, lead time is just 6 weeks as opposed to the several months experienced in the past.

While VSDs have in recent years grabbed the limelight, controlling the starting torque and current of large, and particularly medium voltage motors, has taken its own market niche and while small VSDs may be economical for low-voltage, low power motor starting, economics strongly favour dedicated starting controllers at the high power end of the spectrum.  The new MV Digistart brings the sophistication and control of drives technology to dedicated motor starters.

Stuart Harvey Softstart UK Ltd
T: 01493 660510
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www.softstartuk.com