For 0.4kV low-voltage systems, our LV PFC Panel corrects the power factor to a business level. We offer automatic reactive power compensation that raises the power factor above 0.95. We have been making things for more than 20 years and have 18 ideas that have been trademarked. Our products have full safety systems, zero-crossing switching technology, and modular design that can diagnose itself. With more than 120 sets of high-tech production tools and 15 top engineers on staff, we make sure that every panel meets ISO 9001 standards. As a result? Lower energy costs, less transformer loss, and a more stable power grid for your building.
An item is a high-tech electrical switching system made just for low-voltage setups, which usually work with 400V to 690V. Think of it as the power optimiser for your building.
There are battery banks, reactors, contactors, and smart control systems on this panel, and they all work together perfectly. It takes into account response power demand instantly and in real time. A steady flow of two types of power goes through your electricity system: active power (which does work) and reactive power (which doesn't).
You're wasting energy if you don't fix it properly. When your power factor goes below 0.9, your utility company will often charge you extra. Our screens fix this issue by changing reactive power correction on the fly. This keeps your power factor high all the time.
Microprocessor-based controls are built into the current panels we make. These allow for constant tracking, automatic swapping of capacitors, and harmonic filtering. You get better power, waste less energy, and pay less to run the business.
Cost Reduction
Your electricity bills decrease immediately. Most facilities see 8-15% savings by eliminating power factor penalties and reducing overall consumption.
Equipment Protection
Voltage drops cause equipment malfunction and premature failure. Proper power factor correction maintains stable voltage levels across your entire facility.
Energy Efficiency
Transformer and cable losses typically account for 2-5% of total energy consumption. Our product minimizes these losses significantly.
Harmonic Management
Sensitive electronic equipment suffers from harmonic distortion. Our panels include filtering capabilities that protect your valuable assets.
| Parameter | Specification |
|---|---|
| Rated Voltage | 400V-690V AC, 50/60Hz |
| Compensation Capacity | 25 kVAr - 1000 kVAr (customizable) |
| Power Factor Range | 0.8 to 0.99 (lagging/leading) |
| Response Time | 20-60 seconds (automatic switching) |
| Protection Rating | IP31 - IP54 (application dependent) |
| Operating Temperature | -25°C to +55°C |
| Altitude Capability | Up to 2000m (without derating) |
| Control System | Microprocessor-based with LCD/Touch-screen HMI |
| Communication Protocols | Modbus RTU/TCP, Profibus, Ethernet/IP, DNP3 |
| Harmonic Mitigation | Up to 50th order filtering |
| Standards Compliance | IEC 61439-1/2, IEC 60831, IEEE 519, CE marking |
| Capacitor Step Control | Modular design with precise step adjustment |
| Discharge Time | ≤3 minutes to below 50V |
| Noise Level | <40dB (residential applications) |
Your facility operates with varying loads throughout the day. Our product adapts automatically.
Zero-crossing switching technology eliminates inrush current transients. This protects capacitors and extends their service life. Phase-by-phase compensation addresses three-phase imbalance directly. You get optimal performance regardless of load conditions.
The intelligent controller monitors power factor in real-time. It switches capacitor steps within 20-60 seconds of detecting changes. This responsiveness ensures you maintain target power factor continuously.
We've engineered a "building-block" modular approach. Each capacitor bank functions as an independent unit. This delivers multiple advantages for your operation.
Compact Footprint: Space is valuable. Our design maximizes compensation capacity while minimizing floor space requirements.
Simplified Wiring: Installation time reduces significantly. Clear labeling and standardized connections make commissioning straightforward.
Self-Diagnostic Capabilities: The system continuously monitors its own health. When a module develops issues, you receive immediate notification.
Easy Maintenance: Need to replace a faulty module? Simply swap it out. No complex troubleshooting required. Your maintenance team handles it quickly without specialized training.
Electrical systems face numerous threats. We've integrated multiple protection layers to safeguard your investment.
These protection systems work together. They extend equipment service life from typical 8-12 years to maximum potential.
Steel plants and heavy machinery operations generate massive reactive power demand. Large induction motors, welding equipment, and arc furnaces create challenging electrical environments.
Our industrial-grade panels maintain power factor above 0.95 even in harsh conditions. IP54 enclosures protect against dust and moisture. Harmonic filters handle VFD-heavy applications without resonance issues. Specialized cooling systems ensure reliable operation at ambient temperatures up to 50°C.
Example Results: A typical steel rolling mill reduces energy costs by 12-18% annually while extending transformer lifespan.
Office complexes and data centers require consistent power quality. HVAC systems, IT equipment, and lighting create varying reactive loads throughout the day.
These installations achieve 8-15% electricity cost reductions. Integration with building automation systems provides centralized control. Real-time power quality monitoring through IoT connectivity enables predictive maintenance. Panels operate silently in temperature-controlled environments with 24/7 reliability.
Large apartment buildings benefit from power factor correction too. Common area electricity expenses decrease noticeably. Elevator performance improves. Lighting systems operate more efficiently.
Smaller capacity units (25-100 kVAr) suit these applications perfectly. Compact designs fit in limited electrical rooms. Silent operation below 40dB keeps residents comfortable. Simplified maintenance procedures work for building management teams with basic electrical knowledge.

We operate 120+ sets of advanced manufacturing equipment:
Every production stage undergoes continuous optimization. This ensures efficiency without compromising quality.
We implement comprehensive quality controls across all stages:
Our "zero defects" philosophy guides every decision. We operate according to ISO 9001 quality management system standards. Additional certifications include ISO 14001 and OHSAS 45001.

Before shipping, every LV PFC Panel undergoes extensive testing:
You receive comprehensive documentation with every shipment. This includes test reports, maintenance procedures, spare parts lists, and warranty terms.
Capacitor lifespan typically ranges 8-12 years. Several factors influence longevity:
We recommend monthly monitoring of capacitance drift. Replacement becomes necessary when deviation exceeds ±10% of rated value. Annual tan delta testing per IEC 60831 provides additional lifespan assessment.
Regular maintenance extends service life significantly. Our modular design makes replacement straightforward when needed.
Absolutely. Modern industrial facilities rely heavily on VFDs for motor control. These create harmonic distortion that affects power quality.
Our product addresses this challenge specifically. We include harmonic-rated capacitors designed to withstand elevated harmonic currents. Detuned reactors (typically 7% or 14% tuning) prevent dangerous resonance conditions.
Before installation, we conduct THD analysis per IEEE 519 standards. This ensures compliance with 5% voltage distortion limits. Your sensitive equipment stays protected while you enjoy improved power factor.
Regular maintenance ensures optimal performance and longevity:
Monthly: Visual inspections checking for dust buildup, loose connections, and unusual heating
Quarterly: Capacitor bank testing verifying capacitance values and insulation resistance
Semi-Annual: Control system calibration ensuring accurate power factor measurement and switching
Annual: Thermal imaging per NETA standards identifying developing issues before failure
Before Any Maintenance: Verify capacitor discharge resistor functionality. Capacitors store dangerous voltage even after disconnection.
Our self-diagnostic capabilities reduce maintenance requirements. The system alerts you to developing issues before they become problems.
Temperature directly impacts capacitor performance and lifespan. Standard ratings assume 40°C ambient temperature.
Every 10°C above 40°C requires 10% capacity derating. For example, a 100 kVAr panel operating at 50°C provides approximately 90 kVAr effective compensation.
Our panels with IP54 rating include forced ventilation systems. They operate reliably at 50°C with proper derating calculations per IEC 60831-1. For extremely hot environments, we offer enhanced cooling solutions.
Conversely, operation below 40°C extends capacitor lifespan and improves performance slightly.
Modern facilities require integrated control systems. Our panels support all major industrial protocols:
Integration testing verifies critical functions:
We provide technical support throughout integration. Your existing building management or SCADA system connects seamlessly.
Our track record speaks volumes about reliability and capability:
Municipal Engineering:
Commercial Real Estate:
Industrial Projects:
These projects were completed ahead of schedule while maintaining exceptional quality standards. Many received top assessment results from independent evaluators.

Our team includes 15 senior engineers and over 30 intermediate technicians. With 18 patents demonstrating innovation leadership, we solve complex power quality challenges others cannot.
Advanced equipment and optimized processes ensure consistency. Every panel meets international standards before leaving our facility.
We provide complete power supply and distribution solutions. Need transformers, switchgear, or cables? We handle procurement, ensuring compatibility and simplified project management.
Your unique requirements drive our solutions. We customize panels for specific environmental conditions and country-specific regulations. Technical support continues throughout your panel's lifetime.
ISO 9001, ISO 14001, OHSAS 45001, and CCC certifications demonstrate our commitment to quality, environmental responsibility, and safety. CE marking enables European market deployment.

Ready to reduce energy costs and improve your LV PFC Panel facility's electrical performance? Our team is here to help you select the optimal configuration.
Contact us today: tuojie@electricinchina.com
We'll discuss your specific requirements and provide a tailored solution that delivers measurable results.







