Currently, most regulations governing grid connection of these systems require solar inverters to shut down when the grid voltage falls outside established limits.
In unstable grids, this situation leads to unwanted shutdowns of photovoltaic installations, resulting in lost energy generation and a reduced lifespan for the solar inverters.
Since in most cases surplus energy is fed back into the grid to receive financial compensation, bidirectional equipment is necessary to ensure this operation is performed at optimal voltage levels. Traditional voltage stabilizers cannot be used for this purpose, as they are unidirectional and not designed to handle reverse current. Manipulating the inverter to continue operating under extreme voltage conditions is also not feasible, as it would violate regulations and expose the loads to serious danger.
The new VR EQX range of regulators constantly monitors the grid voltage and, based on this, manages it electronically, performing rapid and precise voltage adjustments within the short timeframe required by most grid connection requirements in each country, thus immediately ensuring a reliable energy supply.
This bidirectional voltage regulator is available in single-phase and three-phase models, with the latter offering independent regulation for each phase. Furthermore, it is compatible with all brands and models of grid-tied solar inverters currently on the market.
Applications:
The VR EQX range is primarily used in grid-tied photovoltaic solar self-consumption installations where the utility company's power line exhibits voltage instability.
A preliminary study of the electrical grid to anticipate critical voltage variations is often difficult to conduct for various reasons. VR EQX is therefore a good support for the operations of installation companies, engineering firms or specialized distributors, allowing them to rectify, after the fact, those installations that suffer these effects or to provide their solution beforehand, in the project phase.
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- Category: Other Equipment
Salicru VR EQX Regulator
Salicru has introduced the VR EQX range of voltage regulators, the ideal solution for preventing shutdowns in grid-connected photovoltaic installations caused by overvoltage and/or undervoltage in the power line. These new devices ensure that the grid voltage reaching the solar inverter remains within the minimum and maximum limits established by current regulations in Spain.
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