Before the installation of hybrid reactive power compensation systems, no compensation equipment was installed at the facility’s feeders. Detailed measurements revealed that the reactive power demand was highly dynamic – without stabilization, with frequent transient spikes and sudden changes. The reactive power was inductive in nature and fluctuated between 30 and 140 kVAr.

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Problem

The facility incurred significant costs due to the reactive power component, while standard solutions were not considered due to their low efficiency.

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Solution

Considering the situation, it was decided to install a hybrid (thyristor-based) reactive power compensation system, more suitable for dynamic compensation. Two 180 kVAr hybrid (thyristor-based) systems were implemented, each consisting of 50 kVAr and 30 kVAr thyristor-switched stages and a 100 kVAr Static Var Generator (SVG). These solutions ensured fast and accurate reactive power compensation and significantly reduced reactive power costs.