VRC Series On-Load Regulation Dynamic Reactive Power Compensation System

Product Advantages

1. Integrated Voltage Regulation and Compensation for Enhanced Precision
Unlike traditional compensation devices—which typically serve a single function—this product features integrated on-load voltage regulation capabilities. The output voltage supports multi-step on-load adjustment across a range of 10.5 × (0–8) × 6.25%. This enables the device to perform reactive power compensation and voltage support simultaneously, even during severe fluctuations in grid voltage.
2. Fine-Grained Step Adjustment to Prevent Over-Compensation
The reactive power adjustment step size is strictly controlled at ≤375 kvar. This ensures that reactive power compensation does not involve abrupt “large swings”; instead, the adjustment process is smoother, effectively preventing both over-compensation and under-compensation within the power grid.
3. Oil-Immersed, Self-Cooled Design for Low Maintenance Costs
The transformer section employs an oil-immersed, self-cooled (ONAN) design, utilizing standard domestic Grade 45 high-quality transformer oil. By eliminating vulnerable components such as cooling fans—and relying entirely on natural convection for heat dissipation—the design significantly reduces long-term hardware maintenance costs and lowers the overall failure rate.
4. High-Precision Measurement and Industrial-Grade Anti-Interference Capabilities
The device achieves an overall measurement accuracy rating of Class 1.0 (with a voltage measurement accuracy of 0.5%). Furthermore, it features robust electrical withstand capabilities—rated at 2500V for common-mode and 1000V for differential-mode interference. This ensures precise data sampling and stable, error-free operation, even within complex industrial power grid environments characterized by high harmonic distortion.

Application Scenarios

1. PV and Wind Power Collection Stations: The inherent instability of power output from new energy sources often causes significant voltage fluctuations (surges and dips) on 10kV lines; this device stabilizes the voltage at the grid connection point in real time.
2. Heavy Industry and Mining Enterprises: Such as steel mills, cement plants, and large-scale mining operations. These facilities frequently involve the startup of large electric motors, which can trigger severe voltage flicker; this device provides rapid reactive power compensation.
3. Regional Substations: Deployed at substations located on the outskirts of urban areas or at the end of rural power grids to mitigate issues associated with long-distance power transmission, such as high line losses and low voltage levels.