Our Panel Mounted LV Reactive Power Compensation Unit delivers enterprise-grade performance for 0.4kV systems. It automatically corrects reactive power with precision accuracy of ±0.01 power factor. The system features zero-crossing switching technology that eliminates inrush current transients and provides phase-by-phase compensation. With modular design spanning 6-12 compensation steps, it handles reactive power capacity from 5kVAr to 600kVAr. Advanced protection integrates safeguards against over-temperature, over-voltage, under-voltage, phase loss, and harmonics. Our units achieve 15-25% reduction in electricity costs while maintaining power factor above 0.95.
This intelligent device transforms how your electrical system operates.
It monitors power factor continuously. When inductive loads like motors or transformers create poor power factor conditions, the unit responds instantly. Capacitor banks switch in and out automatically to maintain optimal levels.
You'll see immediate improvements. Reduced electricity bills come first. Utilities charge penalties for poor power factor—these disappear. Voltage stability improves throughout your facility. Equipment runs cooler and lasts longer.
The compact panel-mounted design saves valuable space. Everything integrates into a single enclosure. Controllers, capacitors, contactors, and protection devices work together seamlessly.
Your electrical system gains the capacity it always needed.

Our Panel Mounted LV Reactive Power Compensation Unit meets international standards with precision engineering.
| Parameter | Specification |
|---|---|
| Rated Voltage | 380V-480V (3-phase) |
| Frequency | 50/60Hz |
| Reactive Power Range | 5kVAr to 600kVAr |
| Power Factor Accuracy | ±0.01 |
| Compensation Steps | 6-12 steps (customizable) |
| Protection Rating | IP54/IP65 |
| Operating Temperature | -25°C to +55°C |
| Harmonic Filtering | Detuned reactor options (5.67%, 7%, 14%) |
| Response Time | <20ms |
| Communication Protocols | Modbus RTU/TCP, Profibus, Ethernet |
| Compliance Standards | IEC 60831, IEC 61439, IEC 61000, IEEE 519 |
| Dimensions | 600×800×300mm to 2000×800×600mm |
| Service Life | 10-15 years (capacitors) |
The microprocessor-based controller provides real-time monitoring. LED indicators show system status at a glance. Remote monitoring capabilities support Industry 4.0 integration.
Zero-crossing switching eliminates harmful transients. Your equipment experiences smooth, stress-free operation. Phase-by-phase compensation addresses three-phase imbalance directly.
This matters in real applications. Unbalanced loads cause motor overheating. They trigger nuisance breaker trips. Our system solves these problems automatically.
The "building-block" approach simplifies everything. Compact footprint fits tight electrical rooms. Wiring complexity reduces dramatically.
Self-diagnostic capabilities monitor system health continuously. When a fault occurs, you replace only the affected module. No specialist tools required. No extended downtime.
Your maintenance team will appreciate the simplicity.
Multiple protection layers work simultaneously:
These features extend equipment lifespan significantly. You avoid costly emergency repairs. System reliability improves across your facility.

Heavy machinery creates challenging power conditions. Automotive plants, steel mills, and chemical facilities trust our units daily.
They operate reliably through:
Results speak clearly. Electricity costs drop 15-25%. Motor starting capability improves noticeably. System reliability increases.
Modern buildings face unique challenges. HVAC systems, LED lighting, and variable frequency drives generate harmonics.
Our units maintain stable voltage during peak demand. They handle harmonic-rich environments effectively. Installation works even in confined spaces with limited ventilation.
Your building operates more efficiently. Tenants experience fewer power quality issues.
Solar and wind installations require precise reactive power management. Grid synchronization demands are strict.
Our units excel during rapid load changes. Weather-induced power variations don't cause problems. Advanced models include anti-islanding protection.
You'll meet utility interconnection standards confidently.

We implement strict quality management across all stages.
Raw Material Control: Every component undergoes incoming inspection. Capacitors meet IEC 60831 standards. Reactors comply with relevant specifications.
Production Monitoring: Over 120 sets of advanced machinery ensure precision. CNC equipment maintains tight tolerances. Microcomputer-controlled processes optimize quality.
Testing Protocols:
Certifications: ISO 9001, ISO 14001, OHSAS 45001, National CCC Mandatory Certification
The concept of "zero defects" integrates into every detail. No unqualified product leaves our factory.

Technical Excellence: Our team includes 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians. We hold 18 patents demonstrating innovation leadership.
Proven Track Record: Hundreds of successful projects across municipal, commercial, and industrial sectors. Xuzhou Rail Transit, XCMG Group, and major commercial complexes trust our solutions.
Customized Approach: We provide tailored products meeting your specific requirements. Different environmental conditions? Country-specific standards? We deliver appropriate solutions.
Comprehensive Service: Beyond manufacturing, we assist with product procurement. One-stop power supply and distribution solutions simplify your project management.
Advanced Production: Over 120 sets of modern equipment ensure consistent quality. CNC automatic winding machines, static vacuum casting machines, and gradient curing furnaces optimize every process.
You partner with a company that prioritizes your success.

Don't worry. Redundant protection systems provide fail-safe operation.
Individual capacitor failures are isolated by fuse protection. The system continues operating at reduced capacity. Your processes don't stop.
Controller failures trigger manual bypass mode. Comprehensive alarms notify you immediately through SCADA integration. IEC 61439 reliability testing validates these mechanisms.
Excellent question. Harmonics challenge many compensation systems.
Units equipped with detuned reactors prevent harmonic amplification. We offer 5.67% or 7% tuning options. These prevent dangerous resonance conditions.
Harmonic analysis per IEEE 519 confirms safe operation. The system handles up to 20% harmonic distortion. Advanced models include active filtering for superior mitigation.
Minimal maintenance saves you time and money.
Annual: Visual inspection and LED indicator verification
Every 2 Years: Capacitor insulation testing
Every 3 Years: Contactor contact inspection
Capacitor life expectancy reaches 10-15 years under normal conditions. Accelerated aging tests per IEC 60831 standards verify this longevity.
The modular design makes replacement straightforward when needed.
Absolutely. Voltage variations are common in industrial settings.
Advanced controllers include adaptive voltage compensation. Operation continues within ±10% voltage variation. This covers most real-world scenarios.
Undervoltage protection activates below 85% rated voltage. Overvoltage protection engages above 110%. IEC 60831 safety requirements guide these settings.
Your capacitors remain protected regardless of grid conditions.
Modern connectivity meets your expectations.
Integration through Modbus RTU/TCP, Profibus, or Ethernet protocols provides real-time data. You monitor power factor, reactive power, and system status remotely.
Cloud-based platforms offer predictive maintenance alerts. Energy consumption analytics support continuous improvement. Cybersecurity features meet IEC 62443 industrial network security standards.
You gain visibility without additional site visits.
Ready to optimize your power system? Our team provides tailored solutions for your specific requirements.
Email: tuojie@electricinchina.com
Let's discuss how our Panel Mounted LV Reactive Power Compensation Unit improves your facility's efficiency and reduces costs.