Low Voltage Switchgear & Distribution Panels
CAPACITOR BANK PANEL is a reactive power compensation device specifically designed to improve power factor and enhance power quality in electrical systems. By intelligently switching power capacitors, this product effectively compensates for reactive power generated by inductive loads, reducing line losses, improving power supply efficiency, and stabilizing grid voltage. It is widely used in industrial, commercial, and residential distribution systems.
Detailed Technical Specification
Parameter Category | Technical Specifications |
Rated Characteristics | Rated Voltage: 400V/230V AC |
Capacitors | Type: Self-healing dry-type capacitors |
Switching Devices | Contactor type: Rated current 45A-400A |
Protection Degree | IP30 (Indoor standard) |
Control Methods | Power factor control: COSφ setting |
Enclosure Material | 1.5-2.0mm premium cold-rolled steel |
Key Product Features
1.High Efficiency Compensation
Power factor improvement: Can improve power factor from 0.7 to above 0.95
Significant energy saving: Reduce reactive power loss, save electricity cost 10%-30%
Fast response: Switching response time ≤20ms
Multi-step compensation: 4-12 steps compensation, high accuracy
2.Intelligent Control System
Digital controller: LCD display, menu operation
Automatic control: Automatic switching according to load changes
Data monitoring: Real-time display of voltage, current, power factor
Communication function: RS485 interface, Modbus protocol
3.Safety Protection Functions
Overvoltage protection: Automatic cut-off when voltage exceeds set value
Undervoltage protection: Automatic cut-off when voltage below set value
Overcurrent protection: Automatic protection when current exceeds set value
Temperature protection: Overheat automatic protection
Discharge protection: Built-in discharge resistors
4.Reliable Components
High-quality capacitors: Good self-healing performance, long life
Special contactors: Strong arc suppression capability
Fuse protection: Fast fuse protection
Optional reactors: Suppress harmonic amplification
5.Easy Installation and Maintenance
Modular design: Easy installation and maintenance
Front operation design: All operations completed from the front
Indicator lights: Clear display of operation status
Easy maintenance: Simple component replacement
Typical Applications
Industrial sector: Factory power distribution systems, motor loads
Commercial buildings: Shopping malls, hotels, office buildings
Public facilities: Hospitals, schools, stadiums
New energy: Photovoltaic power stations, wind farms
Special loads: Welding machines, cranes, elevators
Optional Configurations
Basic Type: Contactor switching, basic functions
Standard Type: Intelligent control, data monitoring
Advanced Type: Thyristor switching, fast response
Harmonic resistant: Built-in reactors, harmonic suppression
Smart Type: Remote monitoring, data analysis
Q1：What is the primary purpose of installing a Capacitor Bank Panel?
A: The main goal is Power Factor Correction (PFC). By compensating for reactive power, our panels increase the power factor closer to unity (0.95–0.99), which reduces electricity bills, avoids utility penalties, and decreases the load on your transformers and cables.
Q2：How do I determine the required KVAR capacity for my facility?
A: The capacity depends on your current power factor, target power factor, and total load (kW). Our engineering team at the Shanxi factory can help you calculate the precise KVAR requirement if you provide your recent electricity bills or a load analysis report.
Q3：What types of capacitors do you use in your panels?
A: We use high-quality self-healing dry-type or oil-immersed capacitors. These are equipped with overpressure disconnector devices and discharge resistors, ensuring a long service life and high operational safety under continuous load.
Q4：Do your panels include detuned reactors for harmonic suppression?
A: Yes. For environments with high harmonic distortion (like those with many VFDs or rectifiers), we provide Detuned Capacitor Banks integrated with 7% or 14% reactors to prevent resonance and protect the capacitors from overheating.
Q5：What kind of PFC controller is integrated into the panel?
A: Our panels feature intelligent micro-processor controllers that automatically monitor the power factor in real-time and switch capacitor steps on/off to maintain the target PF, ensuring optimal compensation without over-correction.
Q6：How do you handle the heat generated inside the capacitor bank?
A: Capacitors are sensitive to temperature. Our cabinets are designed with forced-air cooling systems (industrial fans and thermostats) and optimized ventilation slots to ensure the internal temperature stays within the optimal operating range of the components.
Q7：What protection features are included in the panel?
A: Every panel is equipped with short-circuit protection (MCCBs/Fuses), over-voltage protection, under-voltage protection, and thermal overload protection for each individual capacitor step.
Q8：Can the step stages be customized (e.g., 25 KVAR x 10 steps)?
A: Yes. As a direct manufacturer, we can customize the step increments and total stages (fixed or automatic) to match your specific load variations, ensuring smooth and precise compensation.
Q9：What is the standard protection rating (IP) for your PFC panels?
A: Our standard indoor enclosure is IP30 or IP40. For dusty or industrial environments, we can provide up to IP54 ratings with specialized sealing and filtered ventilation to protect the sensitive electronic controllers.
Q10：How do you ensure the capacitors are not damaged during international shipping?
A: Capacitors are fragile components. We use reinforced export-grade plywood crates with internal shock-absorbing materials. The panels are shipped in a vertical position with clear "Fragile" and "This Side Up" labeling to ensure they arrive at your site in perfect working condition.
