The TBB High Voltage Capacitor Compensation Cabinet is an advanced automatic reactive power compensation system designed to enhance power factor correction and optimize power quality in electrical networks. This unit is ideal for applications requiring automatic reactive power compensation, power factor optimization, and harmonic suppression in industrial and utility environments.
The system integrates high-voltage capacitor banks, series reactors, vacuum contactors, current transformers, zinc oxide surge arresters, and an automatic reactive power compensation controller. It efficiently regulates voltage, reduces power losses, and stabilizes the grid by compensating for reactive power fluctuations.
This high-performance capacitor bank system ensures safe and reliable operation, featuring intelligent protection mechanisms, real-time monitoring, and an advanced control system. It is designed to improve energy efficiency, reduce transmission losses, and provide long-term operational stability.
Key Features & Benefits
✅ Automatic Reactive Power Compensation: Real-time monitoring and automatic switching of capacitor banks for optimal power factor correction (≥0.95).
✅ High Efficiency & Stability: Long-term operation at rated voltage up to 1.1 times the power frequency, ensuring durability under fluctuating loads.
✅ Advanced Protection System: Equipped with microprocessor-based differential current protection to safeguard against voltage surges, harmonics, and overcurrent conditions.
✅ Harmonic Suppression: Series reactors limit inrush currents and filter harmonic distortions, ensuring grid stability.
✅ Durable & Safe Structure: Features a fully enclosed, explosion-proof design with reinforced insulation and thermal stability.
✅ Smart Control & Remote Monitoring: Real-time display of voltage, current, active/reactive power, power factor, and harmonic levels, supporting remote communication protocols.
Parameter | Details |
---|---|
Rated Voltage | 10kV (6kV) / 35kV |
Rated Frequency | 50Hz |
Rated Capacity | 50-20,000 kVar |
Neutral Connection | Non-effective grounding or insulated |
Operating Temperature | -40°C to +45°C |
Relative Humidity | ≤90% (at 25°C) |
Altitude Limit | ≤4500m |
Installation Environment | Indoor/Outdoor |
Discharge Time | ≤5 seconds to below 50V |
Reactor Impedance | 0.1%-1% (inrush current limit) |
Harmonic Suppression | 4.5%-6% (5th harmonics) / 12%-13% (3rd harmonics) |
Applications
The TBB High Voltage Capacitor Cabinet is designed for a wide range of industries requiring voltage stability and reactive power compensation, including:
- Power Distribution Networks – Ensures power factor correction in substations and grid systems.
- Industrial Manufacturing – Reduces energy losses in steel, chemical, and metallurgy industries.
- Heavy Machinery & Automation – Improves efficiency in motor-driven systems and electromechanical applications.
- Utilities & Renewable Energy – Enhances grid stability in solar, wind, and hydroelectric power stations.

The system compensates for reactive power, stabilizes voltage fluctuations, and enhances power factor correction to improve overall grid efficiency. This helps reduce energy losses and prevents penalties from utility providers due to poor power factor levels.
The cabinet is equipped with microprocessor-based protection, including differential current protection, overvoltage shutdown, harmonic filtering, and automated fault isolation. Additionally, it has an explosion-proof structure with reinforced insulation for maximum safety.
Yes, the TBB Capacitor Cabinet is designed for harsh environments, with an operating temperature range from -40°C to +45°C and the ability to function at altitudes up to 4500m. It also features weatherproof enclosures for outdoor installations.