Powerstar was established in 2001, and remains the only voltage optimisation system on the market with a patent on its design. The Patent number for the system is : UK PATENT 2480708 which was filed under UK PATENT application number 1014460.8
The design and specification of the Powerstar voltage optimisation system is unique. It holds a patent on its design which ensures that other voltage optimisation solutions, although similar in principle and application are unable to replicate the exact design specifications of the Powerstar system.
It is through this patented design that Powerstar is able to generate negative power feedback (back EMF).
Powerstar is a transformer-based system used to optimise the characteristics of the current supplied at the source (first current), according to current characteristics required at the load (second current).
The first current is typically an alternating voltage in which case the resultant voltage is increased or decreased, this transformation routinely results in excess transformed voltage.
The supply current flows from the first winding into the second winding of a voltage optimisation system, wherein the magnetic flux causes the induction of a reverse current, which is a fraction of the supply current, typically 10%. This reverse current flows in the opposite direction to the supply current, wherein it is directed back to the electricity supply.
Because this reverse current is real energy, which is distinct from apparent or reactive energy, there is a direct effect on the consumption of the load. This effect is a reduction of power consumed by a load, seen by actual kWh savings
In simple terms, any excess voltage above the Powerstar set-point, is chopped and returned in the direction of the supply, generating induced negative power to the supply which flows towards the supply which is subtracted from the incoming power.
A report entitled ‘Simulation Study for a Transformer Based Voltage Regulator’ concluded:
1) The mathematical and simulation model presented in the report explains how the voltage regulator works.
2) The theoretic analysis and simulation results prove that the voltage regulator can lead to energy saving.
3) The overall power consumption is reduced because the negative power is induced and feedbacks to the
power source. Virtually, this power can be considered as power “generated” from the load side.
4) The induced current or power can be measured using a separated power supply by using an ordinary transformer (not an autotransformer).
Professor Jihong Wang, University of Warwick, ‘Simulation Study for a Transformer Based Voltage Regulator’, 2011
Powerstar South Africa, a distributor for market leading energy storage and voltage optimisation brand Powerstar, is currently saving Pick n Pay, South Africa’s second largest supermarket chain store on average over 8% in electricity costs across two of its stores. The company, which is enjoying its largest period of growth since entering the market