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Product Introduction
Professional Detuned Capacitor Bank Solutions for Modern Power Systems
When your electrical system struggles with power quality issues and harmonic distortion, you need a specialized solution that goes beyond traditional power factor correction. Our detuned capacitor bank systems are engineered specifically for environments with significant non-linear loads such as Variable Frequency Drives (VFDs), UPS systems, and LED lighting. Unlike standard capacitor banks, our advanced design integrates harmonic blocking reactors in series with capacitor steps, preventing dangerous resonance conditions while maintaining excellent power factor correction.
Technical Specifications
| Parameter | Specification | Standard |
|---|---|---|
| Detuning Factor | 5.67%, 7%, 14% | IEC 61921 |
| Voltage Rating | 0.4kV - 40.5kV | IEC 60831 |
| Current Rating | 630A - 4000A | - |
| Frequency | 50/60Hz | - |
| Reactor Linearity | Up to 1.8x In | IEC 60076-6 |
| Insulation Class | Class H/F | - |
| Operating Temperature | -25°C to +55°C | - |
| Altitude | Up to 4000m | - |
| Capacitor Voltage | 440V, 480V, 525V (for 400V grid) | - |
| Protection Level | IP31/IP54 available | - |
Main Features and Advantages
Harmonic Protection Excellence
Our systems shift resonant frequency below the 5th harmonic (typically 189Hz in 50Hz systems), creating an inductive impedance path that prevents harmonic amplification.
Extended Equipment Lifespan
While standard capacitor banks may fail within 6-18 months in harmonic-rich environments, our detuned capacitor bank solutions are designed for significantly longer service life.
Voltage Uplift Management
Capacitors are specially rated for higher voltages to withstand the Ferranti effect caused by series reactor connection, ensuring reliable operation.
Superior Build Quality
Iron-core reactors maintain constant inductance even during current spikes up to 1.8 times rated current, preventing saturation during harmonic surges.
Practical Applications
Industrial Manufacturing
Perfect for facilities with multiple VFDs, welding equipment, and motor drives where harmonic distortion is prevalent.
Commercial Buildings
Ideal for modern office complexes with LED lighting systems, UPS installations, and IT equipment generating significant 3rd harmonic content.
Data Centers
Essential for power quality management in facilities with heavy non-linear loads and critical power requirements.
Renewable Energy Integration
Supports grid stability in solar and wind installations where power electronic converters introduce harmonics.
How It Works
The detuned capacitor bank operates by intentionally modifying circuit impedance characteristics. When harmonic-rich currents encounter the series LC circuit, the reactor creates high impedance at harmonic frequencies while allowing fundamental frequency (50/60Hz) reactive power compensation to function normally. This prevents the dangerous parallel resonance condition that typically occurs between source inductance and standard capacitor banks.
Manufacturing Excellence
Xi'an Xikai Medium And Low Voltage Electric Co., Ltd. brings decades of expertise in medium and low voltage power distribution equipment. Our manufacturing facility maintains strict adherence to ISO9001 quality management, ISO14001 environmental management, and OHSAS18001 safety standards. Every detuned capacitor bank undergoes comprehensive testing to ensure compliance with national and international standards.
Why Choose Us
Proven Track Record
With over 100 product varieties across 34 series, we understand the complexities of modern power systems and deliver solutions that work.
Technical Excellence
Our engineering team provides comprehensive harmonic analysis and customized solutions based on your specific load characteristics.
Complete System Integration
As a full-service provider, we offer everything from initial power quality assessment to installation support and ongoing maintenance.
Altitude Performance
Our high-prototype products meet requirements for installations up to 4000m above sea level, ensuring reliable operation in challenging environments.
FAQ
Q: How do I determine if I need a 7% or 14% reactor?
A: This depends on your harmonic profile. For typical industrial loads with 5th and 7th harmonics, choose 7%. For environments with significant 3rd harmonic content (over 15-20%), select 14%.
Q: Can I retrofit reactors to existing capacitor banks?
A: Generally not recommended. The voltage uplift requires specially rated capacitors. Standard capacitors will likely experience rapid dielectric failure.
Q: Does this system filter harmonics?
A: The primary purpose is preventing harmonic amplification, not filtering. It makes your power factor correction system invisible to harmonics while safely correcting power factor.
Q: What maintenance is required?
A: Regular thermal inspections, connection tightness checks, and monitoring for unusual reactor noise levels are essential for optimal performance.
Contact Us
Ready to solve your power quality challenges with our advanced detuned capacitor bank solutions? Our technical team is standing by to discuss your specific requirements and provide customized recommendations.
Email: serina@xaxd-electric.com
Contact us today for a comprehensive power quality assessment and discover how our proven solutions can protect your electrical infrastructure while improving system efficiency.
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