Powerstar HV MAX: Amorphous core transformer with integrated electronic-dynamic voltage optimisation

Powerstar HV MAX provides a combined solution to two common problems; it is the only UK manufactured super low loss transformer with an amorphous core combined with integrated electronic-dynamic (Powerstar MAX) voltage optimisation technology, enabling it to offer instantaneous improvements in efficiencies on the HV side and energy consumption savings on the LV side.


Powerstar HV MAX: Amorphous core transformer with integrated electronic-dynamic voltage optimisation
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A common problem:

Due to distribution transformers having an average lifespan of 30 - 40 years, a site may not upgrade its distribution transformer for decades at a time. Therefore it is essential the materials used can withstand the test of time. Unfortunately, whilst the materials used in typical transformers are undeniably robust, they suffer from significant decreases in efficiency and increases in no load losses and load losses the older the transformers become, resulting in increases to energy consumption.

HV (High Voltage) transformers operate 24 hours a day, during which time they typically undergo constant losses of between 2% - 4% of the electricity that passes through them. These losses can be significantly higher depending on the age and efficiency of the transformer being used.

Why is HV optimisation needed?

If a company is operating its own HV/LV distribution transformer, efficiencies can be improved by optimising at the HV side by replacing a current inefficient transformer with a newer model or one with improved core materials that naturally has fewer losses. 

Powerstar HV MAX is a one such solution that utilises a super low loss amorphous core transformer to significantly improve load losses from the outset. This is due to the internal structure of the material, which is more flexible than cold rolled grain oriented silicon steel (CRGO) laminations that make up the typical present day transformer, meaning easy magnetisation and demagnetisation can take place. The ability to switch magnetisation at a quicker rate than CRGO is what delivers the lower losses.

A 2-in-1 solution - Powerstar HV MAX

In addition to improvements on the HV side, further benefits can be obtained by upgrading the LV (low voltage infrastructure). This is because in the UK, on average, voltage is supplied to a building at 242V; however, the ideal operating voltage for most electrical equipment is 220V. This over supply of voltage leads to excessive amounts of electricity consumption added wear and tear to on-site electrical equipment, high levels of carbon emissions and increased electricity costs.

The flexibility of the Powerstar HV MAX design allows for the electronic-dynamic voltage optimisation to be integrated in the same platform as the amorphous core distribution transformer, meaning a site can achieve all of the benefits without increasing plant room footprint.

Typically around 1% - 3% annual savings can be expected simply by upgrading an existing distribution transformer to the amorphous core HV transformer used in Powerstar HV MAX, and double digit savings can be expected from the integrated electronic-dynamic voltage optimisation technology through energy consumption and carbon reduction savings. As a result annual energy consumption savings from Powerstar HV MAX average around 13%.

The Powerstar HV MAX system is underpinned by an acclaimed ‘concept to completion’ approach which has been adopted by the Powerstar team for over 15 years, and is formed on the basis of an engineering, solutions-led philosophy. The Powerstar team offer full analysis and monitoring of sites electrical supply and suggest a bespoke, tailored solution engineered specifically for the facility, therefore generating maximum efficiencies and savings.

For more information on Powerstar HV MAX optimisation technology visit the Powerstar website.


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