Solcon Medium Voltage DriveStart2 Soft Starter


The Solcon DriveStart is an IGBT based Medium Voltage Soft Starter, optimised for applications that require low starting current and/or a high starting torque.   The cutting edge design results in significant savings in costs, energy and space while meeting high demand application requirements.

Features include:

  • Input voltage – Up to 6.6 kV 50/60Hz +10% -15%.
  • Power range – Up to 6.6kV, 5MW
  • Mains starting current – 10% to 120% of motor rated current
  • Starting capacity of 100% of FLC for 600 seconds at 50°C, numerous number of starts
  • Starting torque – Up to 160% of motor rated toque
  • Internal synchronisation system (bypass), from DriveStart to mains and back
  • Soft Start and Soft Stop
  • Multi-start capabilities
  • Electronic Potential Current Transformer (EPCT) voltage and current measurements via fiber optics
  • Integrated data logger and wave form capture for all major system signals including current and voltage (optional)
  • Remote diagnostics and failure analysis (optional)
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Solcon Industries has launched the second generation of DriveStart, its highly successful IGBT-based medium-voltage soft starter line. DriveStart has been successfully implemented in diverse applications such as pumps, wind tunnels, gas compressors, vacuum blowers and sugar cane crushers. It prevents stress on weak electrical networks that require high torque/inertia starts and is a viable solution when commercial cost is a challenge.

“The new generation is designed to reduce costs even further, saving both energy and space while meeting demanding performance requirements. DriveStart2 delivers higher ratings and voltage – up to 11kV and 18.5MVA,” explained Solcon Industries CEO Itai Zifroni.

The uncomplicated design delivers low maintenance and reliable operation. With smaller physical dimensions, peak demand reduction and an integrated bypass that ensures no energy loss during operation, the new soft starter is particularly optimised for cost-saving.

“In a sample case – a water pump application – we’ve calculated that DriveStart2 can deliver more than US$5 million in savings over a 20-year project lifetime,” Zifroni said.

DriveStart2’s Blue Box control technology boasts specifically developed software (IEC 61131-3 conformed), fault detection and tracking, power failure protection and restart “on the fly.” A touch screen provides quick access to system status, statistics and parameters and convenient remote monitoring and operation solutions capabilities were also incorporated.

Designed for use in both fixed and variable torque applications, the new generation soft starter is also available with a sensor-less vector control for fixed torque.


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Technological innovations have had a hugely beneficial effect in modern industry. As such, service providers in some quarters are moving toward challenging the traditional mainstream solutions or indeed complimenting them by enhancing what they do through specialised products and services.

At CSE Uniserve, we are a specialist solutions provider and have an established presence across the country and around the world. We are committed to fostering new relationships that we believe can lead to positive change for industry and specifically, our customers. Established products such as the Solcon soft starter range make up an important part of what we offer industry, we are very much committed to providing a comprehensive range of solutions to our clients.

We believe that rather than simply offer a catalogue of products from one brand, that choice of technology is imperative for our customer base, and so to complement the well-known names we continue to supply, our team of highly-skilled engineers are here to create solutions that are designed to meet your specific needs. We are a high-skilled, multi-faceted team with in-depth knowledge and experience in:

  • Design
  • Engineering
  • Installation & Commissioning
  • Communications network engineering services for critical infrastructure
  • LV and MV Advanced motor starting and speed control
  • Power quality solutions for LV and MV applications
  • Planned and reactive Servicing with our factory trained and supported Services team.

What a soft starter is used for

Depending on the kind of motor being used, large amounts of energy may be required when starting. Variable frequency drives and soft starters are used to reduce power consumption, reduce power costs, reduce strain on other components and extend the life of a motor / machine.

However, while it may appear that they do the same thing and are interchangeable, this is not the case and there are a few points worth noting about soft starters that differentiate its operational functionality and capability.

Soft starters are only used at motor start-up and are designed to ease the motor toward full speed in a much less taxing fashion. For this reason, they are often referred to as an RVSS or a Reduced Voltage Soft Starter. The idea is that they limit the large initial inrush of current associated with motor start-up and therefore prevent damage to AC electric motors.

Soft starters are usually used only in applications that require torque and speed control on starting. Soft starters are effective where a mechanical system needs to relieve the tension associated with start-up and in order to also reduce the effect and possibility of torque spikes.  Offering extremely robust and reliable motor starting, Soft Starters are very popular in pumping and other starting applications where longevity and reliability are paramount.

Global quality standards

At CSE Uniserve, we believe in technical competence and customer-focused service that meets our global quality standards. We meet a wide range of demands in terms of power system protection, automation and data management applications across a variety of industry. What’s more, we continue to develop high-value relationships with our customers and build upon the solid foundations we work toward establishing from the start.

As such, we hope that when you need a solution to separate your company from the rest in your field, you will seek out CSE Uniserve.

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Solcon MV DriveStart Soft Starter Specifications

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