Low loss power distribution transformers

Introducing the Powerstar SO-LO® range of super low loss amorphous core smart transformers with integrated remote monitoring capabilities.

Amorphous alloy core is a more efficient material than the cold-rolled grain-oriented steel (CRGO) used in traditional distribution transformers as its properties include low core loss and low magnetostriction, meaning load and no-load losses in amorphous core transformers are reduced. The internal structure of amorphous alloy is more flexible than CRGO, meaning easy magnetisation and demagnetisation can take place. The ability to switch magnetisation at a quicker rate is what delivers the lower losses. Benefits of amorphous core transformers include reduced losses, higher efficiencies and asset longevity.

The amorphous core transformer advantage

The Powerstar SO-LO amorphous metal distribution transformers contribute to improving site resilience and can bespoke solutions can assist in protecting against issues in the grid supply voltage, such as fluctuations. It allows for HV infrastructure upgrades to be carried out in a cost effective way with minimal disruption to operations, a big advantage for many commercial sites.

Remote monitoring functionality

Distribution transformers are critical infrastructure for many companies, yet they are not connected and online. Therefore, their health, performance, and efficiency are typically unknown or reliant upon manual inspections of antiquated gauges/meters.

Powerstar SO-LO’s remote monitoring capability allows 24/7 visibility to help you better understand how your transformers are performing and where efficiencies can be made to obtain the best return on investment.

Developed with Industry 4.0 in mind, which is defined by Mckinsey and Company as the next phase in the digitalisation of the manufacturing sector, Powerstar SO-LO remote monitoring provides comprehensive data and intelligence to provide useful grid information, conditional performance data, and energy efficiency reports. It has been designed to complement maintenance activities and allows for the remote monitoring of core temperatures, winding currents, oil temperature and, when integrated, the performance of voltage management functionality.

Download our remote monitoring leaflet in the resource centre

A bespoke solution for your business

Whilst Powerstar SO-LO is an 11kV to 415V amorphous core smart distribution transformer, as manufacturers, we can provide a variety of bespoke amorphous core solutions to suit a wide range of applications. We offer numerous fittings and accessories to help maximise the impact of the technology on each site. These options can be discussed with our specialists at any time, and a no-obligation evaluation of a site’s needs can be arranged to assist in this decision.

Replacing an existing transformer with an amorphous core transformer can instantly yield efficiency benefits. However, depending on site requirements, the Powerstar SO-LO range can be seamlessly integrated with voltage management technology as part of a combined solution. This can reduce unnecessarily high voltage experienced by a facility down to between 230V – 220V, providing even further reductions in energy consumption and costs, and CO2 emissions.

Powerstar SO-LO is the only amorphous core transformer manufactured in the UK, and Powerstar meets the highest quality standards including UL Quality Assurance (E472553), Quality Assurance ISO 9001:2015 (FS579032) and Environmental Management ISO 14001:2015 (EMS600861), resulting in a full solution of unparalleled quality.

Powerstar Buy-back Guarantee

Powerstar buyback guaranteeSustainability is at the heart of our business, so with our range of Powerstar SO-LO Transformers we guarantee to buy back and dispose of your old transformer to ensure an effective, risk-free, and environmentally friendly solution that minimises disruption to your site’s operation.



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Award winning smart distribution transformer Shortlisted for Power Product of the Year Super low loss amorphous core transformer


  • 36 month guarantee*
  • Bespoke to meet client’s requirements
  • Simple upgrade to HV infrastructure that can provide energy and cost savings
  • Meets and surpasses 2021 EU Ecodesign Directive standards set by European Commission
  • Dedicated customer service 24/7, 365 days a year
  • Experienced UK manufacturer of quality amorphous core transformers
  • Variety of fittings and applications to suit every site

*Guarantee applies to systems installed within the UK. Guarantee will be voided if yearly maintenance performance inspections are not undertaken.


  • Up to 75% lower core losses compared to CRGO transformers
  • Delivers greater consumption savings, on average, compared to traditional CRGO transformers
  • Contributes towards CSR by reducing CO2 emissions
  • Simple non-invasive energy efficiency system
  • Gain instant energy consumption savings
  • Remote monitoring allows for greater visibility of transformers operations
  • Reduce operating costs
  • Expected lifespan of up to 50 years

Brochure download

Bromsgrove Winding Services

Explore the benefits of a super low loss smart transformer with remote monitoring capabilities.

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