Dynamic reactive power compensator schemes are essential for efficient operation and stability of electrical systems. As a part of these systems, automatic control devices for reactive power are used which change the values of reactive power in accordance with the actual state of the system in which the voltage consumers operate. Global technological advancements have rendered our compensators reliable and environmentally friendly while improving the integration of renewable energy sources into the overall power supply. All products developed in this direction by Sinotech Group can have additional functionality concerning monitoring of the parameters of the system and control over the compensator in order to perform maintenance before failures happen.