摘要：
The low voltage automatic reactive power compensation cabinet is designed to improve power factor, reduce energy losses, and optimize electrical system performance. It automatically adjusts reactive power in low-voltage networks, ensuring stable and efficient operation for industrial facilities.
Low-Voltage Automatic Reactive Power Compensation Cabinet: Intelligent Energy Management Solution
01 Product Overview
O Low-Voltage Automatic Reactive Power Compensation Cabinet is a microprocessor-controlled reactive power compensation device designed for 380V/400V low-voltage distribution systems. By automatically switching capacitor banks, it improves system power factor from 0.60–0.80 to above 0.95, reduces line losses and transformer load, and achieves both energy saving and power qualidade optimization.
This intelligent cabinet integrates real-time monitoring, automatic control, and multi-level protection, widely applied in industrial plants, commercial buildings, and municipal facilities, providing users with efficient and reliable reactive power compensation.
02 Core Technical Features
1. Intelligent Control System
- Fully Automatic Compensation: Monitors reactive power in real time and switches appropriate capacitor banks automatically.
- Multiple Control Strategies: Supports power factor, reactive power, voltage, and time-based control.
- Advanced Switching Technology: Uses hybrid switches, thyristors, or smart capacitors for surge-free switching.
- Human-Machine Interface: LCD display shows real-time system parameters and operating status.
2. High-Efficiency Compensation
- Rapid Response: Response time ≤ 20ms, suitable for dynamic load compensation.
- High Precision Control: Power factor control accuracy up to 0.01 for precise compensation.
- Multi-Level Compensation: Supports equal, coded, or fuzzy switching methods for optimized adjustment.
3. Multi-Level Protection
- Overvoltage Protection: Automatically disconnects capacitor banks when voltage exceeds preset limits.
- Undervoltage Protection: Automatically exits operation if voltage drops below set thresholds.
- Overcurrent Protection: Cuts off capacitor banks and triggers alarm if current exceeds rated value.
- Temperature Protection: Ensures safe operation with over-temperature safeguard.
03 Technical Specifications
| Parameter | Specification |
|---|---|
| Tensão nominal | 380V/400V ±20% |
| Frequência nominal | 50Hz ±5% |
| Compensation Mode | Phase-by-phase, three-phase, or mixed phase compensation |
| Control Channels | 6–18 channels (expandable) |
| Classe de proteção | IP30, IP40 (optional) |
| Operating Temperature | -25℃ to +55℃ |
| Capacitor Capacity | 5–60 kVar per unit |
| Insulation Level | Main circuit ≥ 1000V, Control circuit ≥ 500V |
04 Application Areas
1. Industrial Manufacturing
- Plant Distribution Systems: Press machines, welding equipment, cranes.
- Production Lines: Automated machinery, CNC machines, fluctuating loads.
- Industrial Facilities: Reduce penalties caused by low power factor.
2. Commercial & Public Buildings
- Shopping Centers & Office Buildings: Optimize reactive power and reduce energy costs.
- Hospitals, Schools, Gyms: Maintain stable voltage and power quality.
- Hotels & Restaurants: Compensate HVAC, kitchen, and other inductive loads.
3. Specialized Applications
- Renewable Energy: Grid connection points in PV and wind farms.
- Rail Transit: Substations in metro and light rail systems.
- Data Centers: Improve power quality for servers and UPS systems.
05 Product Advantages
1. Significant Energy Saving
- Reduce Line Losses: Improved power factor lowers current and reduces losses.
- Lower Electricity Costs: Avoid utility penalties and gain incentives.
- Increase Equipment Efficiency: Reduced transformer and line temperature, longer lifespan.
2. Reliable and Safe Operation
- Intelligent Protection: Comprehensive electrical protection ensures safe operation.
- High-Quality Components: Metallized film capacitors with self-healing properties, long lifespan.
- Durable Switching Devices: Professional switching units rated for 100,000 operations or more.
3. Easy Maintenance and Intelligent Monitoring
- Modular Design: Standardized, modular structure simplifies maintenance.
- Intelligent Diagnostics: Automatically detects faults and locations, reducing downtime.
- Remote Monitoring: RS485 communication supports remote monitoring and data collection.
06 Selection Guide
Selection Considerations
- Load Characteristics: Type, capacity, and operational behavior of inductive loads.
- Current Power Factor: Measure existing system power factor to determine compensation requirement.
- Harmonic Conditions: Identify if harmonic-filtered compensation is needed.
- Installation Environment: Temperature, humidity, and protection class requirements.
Capacity Calculation
Estimated compensation capacity can be calculated:Qc=P×(tanϕ1−tanϕ2)
Where:
- Qc: Required compensation capacity (kVar)
- P: Active power of the system (kW)
- φ1: Pre-compensation power factor angle
- φ2: Target power factor angle
Configuration Suggestions
- Basic Configuration: For stable-load industrial environments.
- Enhanced Configuration: For variable loads and high power quality requirements.
- Special Configuration: For high-harmonic environments or special protection requirements.
07 Installation and Maintenance
Installation Requirements
- Environment: Well-ventilated, no corrosive gases, no conductive dust.
- Electrical Conditions: Compliant with electrical installation standards, reliable grounding.
- Space: Adequate clearance for heat dissipation and maintenance access.
Maintenance Guidelines
- Routine Check: Inspect indicator lights and instrument readings.
- Periodic Maintenance: Every six months, check connections and capacitor condition.
- Professional Maintenance: Annual full electrical parameter inspection recommended.
08 Service Support
- Technical Consultation: Expert guidance for model selection and system design.
- Installation Assistance: On-site engineering support for proper installation.
- Operation Training: Professional training for operators and maintenance personnel.
- After-Sales Guarantee: 18-month warranty with lifetime technical support.
09 Conclusion
O Low-Voltage Automatic Reactive Power Compensation Cabinet offers advanced digital control, reliable operation, and significant energy savings, making it essential for modern low-voltage distribution systems.
With years of technical experience, Motor Juca entrega highly efficient, reliable compensation solutions, helping users improve power quality, reduce operational costs, and achieve sustainable energy management.
Selecting a Simo low-voltage reactive power compensation cabinet ensures optimized energy usage, enhanced equipment efficiency, and long-term cost savings.
Shaanxi Public Network Security No. 41032502000206
