Alterga has unique and long-standing experience on the Polish market in the delivery and commissioning of voltage regulators. The devices we offer are ideal for Renewable Energy Sources, such as photovoltaic or wind farms. Depending on the characteristics of the power grid, RES generation can have a negative impact on voltage parameters. Our products provide a solution to problems with too high or too low voltages in MV networks.

We offer devices for voltage regulation in medium voltage networks. Voltage regulation is carried out by means of a single-phase autotransformer with on-load tap changer.

Key features of our solution:

• voltage regulation by using a booster winding with on-load tap changer

• installation in an open (2 devices) or closed (3 devices) delta configuration allowing for a regulation range of +/- 10% and 15% of the input voltage, respectively

• bidirectional operation

• voltage regulation at RES generation sources

• no possibility of overcompensation of the network – possibility of voltage regulation at a high power factor cosφ

• no overvoltage and overcurrent phenomena characteristic of capacitors

• possibility of moving voltage regulators to another location or investment for a given group of recipients, e.g. construction of a Grid Connection Point

• attractive cost compared to other investments aimed at improving voltage parameters

• pole-mounted installation inside the network or foundation placement on the premises of the substation

• control and communication connected with the operator’s SCADA