10 KV Reactive Power Compensation Cabinet For Grid
✅ Optimal Power Factor Correction: Automatically maintains the grid power factor above 0.95, effectively eliminating utility penalties, reducing transmission line losses, and lowering transformer loading.
✅ Enhanced Power Quality & Stability: Mitigates harmonic distortion, regulates system voltage profiles, and ensures stable, reliable power delivery across the network.
✅ Asset Protection & Energy Savings: Lowers thermal stress and operational energy waste, minimizing equipment heating and significantly extending the service life of downstream electrical assets.
- Product Introduction
Designed specifically for 10kV medium-voltage distribution systems, the 10kV Reactive Power Compensation Cabinet for Grid enhances grid power quality, operational efficiency, and economic performance through intelligent automated control.
Featuring an advanced central microprocessor controller, the 10kV Reactive Power Compensation Cabinet for Grid continuously monitors real-time reactive power demand across the network. Based on target parameters such as power factor , it dynamically switches multiple high-voltage capacitor steps in and out of operation.
This automated mechanism ensures rapid, precise compensation, stabilizes system voltage, and significantly minimizes transmission losses.
Model Meaning
Main Parameters
| Parameter Name | Unit | Typical Value Range |
|---|---|---|
| Rated Voltage | kV | 10 (Phase Voltage: 5.77kV) |
| Rated Frequency | Hz | 50 |
| Rated Total Capacity | kvar | 200-1600 (Single Bank: 50-200kvar, combinable) |
| Number of Phases | ~ | 3 |
| Connection Method | ~ | Star (Ungrounded Neutral) |
| Switching Method | ~ | Vacuum Contactor Switching |
| Switching Response Time | ms | ≤500 (Vacuum Contactor) |
| Protection Degree | ~ | IP3X |
| Insulation Level | kV | Lightning Impulse: 75; Power Frequency Withstand: 42 (1min) |
| Control Accuracy | ~ | Power Factor ≤ ±0.02 (Setting Range: 0.90-1.0) |
| Cooling Method | ~ | Natural Cooling + Forced Air Cooling (Temperature Interlocked) |
Note:Above parameters are typical values,pls contatc us for more details
Structure Features
Heavy-Gauge Enclosure: Constructed from heavy-duty cold-rolled steel (≥2mm thickness) using precision CNC bending to ensure long-term durability and structural protection.
Metal-Partitioned Compartment Design: Primary high-voltage components (incoming line, capacitors, reactors) and secondary low-voltage control devices are housed in separate, metal-enclosed compartments. This strict segregation prevents fault propagation and ensures safe access during routine inspection.
Scalable Capacity Expansion: Designed around plug-and-play modular capacitor units (50–200 kvar per step). Multiple units operate seamlessly in parallel, allowing effortless capacity expansion as grid demand grows.
Intelligent Climate Control: Top-mounted axial fans provide automatic temperature-controlled cooling (≥40°C setpoint), preventing thermal buildup and extending the operational lifespan of core dielectric components.
Intuitive Local Monitoring: High-resolution front panel interface provides real-time visualization of electrical network health, including power factor, three-phase voltage and current, active power, and reactive power.
Safety Design
The 10kV Reactive Power Compensation Cabinet for Grid integrates multiple protection and anti-misoperation features to ensure operational safety:
- Electrical Protection:
- Overvoltage Protection: Trips automatically at ≥ 110 rated system voltage (Un).
- Undervoltage Protection: Trips/disconnects at ≤ 85% rated system voltage (Un).
- Overcurrent / Overload Protection: Continuous overload capability trip set at ≥ 1.3× rated current (In).
- Harmonic Distortion Protection: Automatic isolation when Total Harmonic Distortion (THDu)) exceeds 5%.
- Capacitor Unbalance Protection: Neutral unbalance voltage/current protection for early fault detection within individual capacitor modules.
- Each capacitor step is equipped with a dedicated high-efficiency discharge coil, rapidly reducing residual stored voltage to below 50V within 5 seconds upon disconnection to ensure immediate maintenance access safety.
- Door-Breaker Interlock: Prohibits main breaker closing when cabinet doors are open; prevents door opening while energized.
- Breaker-Disconnector Interlock: Prevents breaker operation unless the isolating switch is fully latched in position.
- Misoperation-Proof Controls: Ergonomic keyed handle interlocks prevent improper manual switching sequences.
- Re-switching Time Delay (≥ 30s): Enforces a mandatory discharge pause between switching cycles to prevent destructive transient inrush currents.
- Reverse Reactive Power Guard: Prevents over-compensation and leading power factor back-feed into the grid.
- System Health Monitoring: Real-time self-diagnostics continuously track communication status, instantly triggering local audible/visual alarms and remote telemetry alerts upon bus failure.
Typical Application Scenarios
Typical Application Scenarios
Versatile Application Across Utility and Industrial Networks
Heavy Industrial Facilities: Efficiently compensates for rapid, large-scale reactive power demands in chemical processing plants, steel rolling mills, and automotive manufacturing complexes, preventing utility power factor penalties.
Primary & Secondary Substations: Implements centralized compensation on 10kV outgoing distribution feeders, improving voltage stability and power delivery quality across entire downstream networks.
Commercial Complexes & High-Rise Buildings: Offsets high inductive demand from large centralized plant equipment-including main HVAC chillers, booster pumps, and complex motor drives-ensuring optimal energy efficiency.
Municipal Distribution Grids: Deployed across urban distribution circuits and switching hubs to achieve regional reactive power equilibrium, mitigate transmission line losses, and enhance grid resilience.
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