
The voltage level of a STATCOM depends on its application, design, and connection point in the power system. Here’s a breakdown:
STATCOMs are designed to operate at different voltage levels based on their use case:
Application | Voltage Level (kV) | Remarks |
---|---|---|
Transmission-Level STATCOM | 115 kV – 765 kV | Used in high-voltage grids for voltage stability and reactive power support. |
Sub-Transmission STATCOM | 33 kV – 132 kV | Supports regional grids and industrial networks. |
Distribution STATCOM (D-STATCOM) | 6.6 kV – 33 kV | Used in distribution networks for power quality improvement. |
Industrial STATCOM | 0.4 kV – 11 kV | Compensates for voltage sags/flicker in factories (e.g., steel plants, mining). |
Grid Connection Point (Transmission vs. Distribution)
Reactive Power Rating (Higher MVAr STATCOMs often connect at higher voltages)
Transformer Coupling (Many STATCOMs use step-up transformers to match grid voltage)
Standard Grid Voltages (Designed to comply with regional grid codes, e.g., 138 kV, 230 kV, 400 kV).
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