BY96-SPC/50kvar-0.4/4L-TSeries Three-Phase Unbalance Correction Device Smart Power Quality Correction Device for Three Active Load Balancer

Model Meaning

Overview of BY96-SPC/50kvar-0.4/4L-T（SPC）

The BY96-SPC/50kvar-0.4/4L-T Smart Power Quality Three-Phase Imbalance Correction Device is a cutting-edge solution engineered to address voltage imbalance and harmonics in electrical system across global 3-phase low voltage grids (0.4kV). Utilizing split-phase compensation technology, this three-phase imbalance correcting device & system dynamically redistributes phase currents in 3-phase 4-wire configurations, resolving 3-phase voltage imbalance and stabilizing power quality in power system infrastructure. Integrated with harmonic mitigation (<3% THD), it suppresses harmonics in power from non-linear loads like VFDs, LED drivers, and industrial machinery, ensuring anti-harmonic compliance with power quality and harmonics standards.Equipped with an AI-driven intelligent control system, the device performs real-time monitoring of power current, voltage fluctuations, and power quality harmonics, enabling adaptive correction of asymmetrical loads within milliseconds. Its dynamic reactive power control module optimizes reactive power compensation, balancing inductive and capacitive loads to minimize energy losses in low-voltage power systems. The rugged design incorporates anti-interference shielding to ensure stable operation in electromagnetically noisy environments, while its compact structure suits space-constrained installations in electrical equipment-dense settings. Compatible with China 3-phase electric standards and global grid codes, it unifies harmonic compensation with low power voltage optimization, delivering a seamless solution for factories, data centers, and renewable energy plants.

In industrial facilities, the BY96-SPC tackles 3-phase voltage imbalance caused by heavy machinery, preventing motor burnout and production downtime through split-phase compensation and three-phase imbalance correction. For China 3-phase electric urban grids, it stabilizes low power electricity distribution by correcting voltage imbalance and suppressing harmonics in power, safeguarding sensitive electrical equipment like servers and medical devices. In renewable energy systems, the device mitigates harmonic distortions from solar/wind inverters, ensuring compliance with power quality regulations while enhancing grid synchronization.The intelligent control system’s real-time monitoring dashboard provides actionable insights into power quality harmonics and power circuit electric performance, enabling proactive adjustments for efficient energy savings. Its adaptive correction algorithms adapt to fluctuating loads in 3-phase power networks, reducing line losses by up to 30% and aligning with global low-voltage power efficiency standards. Ruggedized with IP54 protection and wide-temperature tolerance (-25°C to +60°C), it thrives in harsh environments, from arid solar farms to humid manufacturing plants.By merging harmonic mitigation with reactive power integration, the BY96-SPC enhances grid reliability, extends equipment lifespan, and reduces operational costs. Whether deployed in China 3-phase electric infrastructure or international 3-phase electric networks, this device redefines three-phase imbalance correction, offering a scalable, future-proof solution for achieving power quality in power system excellence.

BY96-SPC/50kvar-0.4/4L-T（SPC）Main Advantages

1.Advanced split-phase compensation technology ensures accurate load balancing of three-phase four-wire systems, minimizes voltage fluctuations and improves power quality by adaptively correcting three-phase unbalance .

2. Integrated harmonic suppression and reactive power compensation Combine dynamic reactive power control with 2nd to 13th harmonic filtering to achieve unified harmonic control and reactive power compensation, and realize energy-saving grid optimization.

3. Intelligent real-time monitoring system uses DSP and FPGA controllers to achieve intelligent control with a response time of <5ms, ensuring low-voltage reactive power compensation and adaptive regulation under fluctuating loads .

4. The modular anti-interference design adopts a three-level IGBT topology and EMI shielding, which can operate stably in harsh environments and supports non-resonance and anti-interference performance .

5. High efficiency and energy saving Through dynamic reactive power distribution and three-phase adaptive correction, transformer losses are reduced by up to 90%, reducing operating costs while extending equipment life

Core Working Principle of BY96-SPC/50kvar-0.4/4L-T（SPC）

1. Three-phase unbalance detection and adaptive correction
The device uses high-precision sensors and real-time algorithms to monitor voltage and current imbalances on all phases. By analyzing the negative-sequence and zero-sequence components, the compensation current required to eliminate phase imbalance is calculated. The adaptive correction mechanism dynamically adjusts the compensation value based on load changes, ensuring optimal performance even under fluctuating conditions. This process reduces transformer overload, minimizes line losses, and extends equipment life.
2. Dynamic reactive power compensation
BY96-SPC/50kvar-0.4/4L-T is equipped with dynamic reactive power control function, which maintains power factor ≥0.95 by injecting or absorbing reactive power. It adopts thyristor switched capacitor (TSC) and inductor (TCR) to achieve fast response time (<20ms) to sudden load changes and prevent voltage sag and surge. This function can improve energy efficiency, reduce electricity costs and enhance grid stability.
3. Harmonic filtering and integrated design
The device combines harmonic suppression with reactive power compensation functions, using passive filters and active control algorithms to filter out low-order harmonics (2nd to 13th). This integrated harmonic management and reactive power compensation design eliminates the risk of resonance and ensures compliance with international standards. By suppressing harmonic distortion, it protects sensitive equipment and improves overall power quality.
4. Split-phase compensation and three-phase four-wire compatibility
For three-phase four-wire systems, the device supports split-phase compensation, allowing the reactive power of each phase to be adjusted independently. This split-phase compensation method can effectively balance single-phase loads (such as lighting, HVAC systems) and ensure the stability of the neutral line current, thereby reducing neutral line overheating and improving safety.
5. Intelligent control and real-time monitoring
The advanced digital controller continuously monitors key parameters (voltage, current, power factor, harmonics) and communicates via RS485/Modbus or optional Ethernet/Wi-Fi. The intuitive human-machine interface (HMI) displays real-time data and alarms, and supports remote diagnostics and parameter adjustments. This intelligent control framework enhances operational flexibility and reduces maintenance costs.

BY96-SPC/50kvar-0.4/4L-T（SPC） Size Information