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SOLUT IONS
— The exclusive Power Controller function available on the new Tmax XT circuit-breakers monitors the power, keeping it below the limits set by the user. As a result of this more effective use, the peak of power consumed can be limited allowing savings on electricity bills. The Power Controller, patented by ABB, discon- nects non-priority utilities, such as electric car charging stations, lighting or refrigeration units, during the times when consumption limits need to be respected, and connects them again as soon as it is appropriate. When required, it automatically activates auxiliary power supplies such as genera- tor sets. No other supervision and control system is required: it is sufficient to set the required load limit on the Tmax XT, which can control any switch- ing device located downstream, even if it is not equipped with a measurement function. Application examples Electricity bill savings, demand response, and avoiding power overloads are the typical scenarios where the Power Controller is used. The Power Controller is commonly used in office buildings, shopping malls, hotels, campuses, waste and water industries or any plant that works like a low voltage microgrid.
The Ekip Power Controller can be used with all Ekip Touch/Hi-Touch trip units of the Tmax XT series and effectively helps to improve energy efficiency by managing the entire low-voltage electrical sys- tem. It is fully able to adapt the demand for power according to the availability of the energy source, the time of day and the costs indicated in the cur- rent pricing plan. In this way, the Ekip Power Controller is able to maintain power consumption within the limits de- fined, thereby optimizing the costs of managing the installation and reducing emissions. Commands sent to downstream devices can be performed in two different ways: • through the wired solution, by commanding the shunt opening/closing releases or acting on the motor operators of the loads to be managed; • through a dedicated communication system. The ability to control the loads according to a list of priorities already defined provides significant ad- vantages from both the economic as well as techni- cal points of view: • Economic: energy consumption optimization is focused on the control of the costs linked in par- ticular to penalties that are levied when the con- tractual power is exceeded or when the contrac- tual power is increased by the Distribution System Operator (DSO) as a consequence of ex- ceeding the limit repeatedly. • Technical: the solution provides the ability to ab- sorb power over the contractual limits for shorter periods and also the management and the control of the power consumption over long periods of time. Thus, it is possible to reduce the likelihood of malfunctioning due to overloads, or worse, complete inefficiency of the entire plant due to tripping of the LV main switching device.
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