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Power Capacitors
- BY71 Series Cylindrical Capacitor
- BSMJ Series Self-healing Low Voltage Shunt Capacitors
- BY86 Series Controlled Intelligent Capacitor
- BYKXG/F Series Anti-harmonic Intelligent Capacitor
- BY81 Series Intelligent Capacitor
- BY82J Series Anti-harmonic Intelligent Capacitor
- BY89 Series Intelligent Capacitor
- Intelligent Controller Series
- Reactor
- Intelligent Switch Series
- Alternating Current Contactor
- Multifunctional power instruments
- Circuit Breaker
- APF/SVG/SPC Cabinet & Module Series
BYKXG/S/480-50/P7 Series Anti-harmonic Intelligent Smart Capacitor 3-phase Reactive Power Compensation 480V
Model Meaning

Main Specification of BYKXG/S/480-50/P7 Series Anti-harmonic Intelligent Smart Capacitor
| Model | BYKXG/S/480-50/P7 | |
| Power supply conditions | Voltage deviation | ±20% |
| Rated voltage | 480V | |
| Power frequency | 47.5~52.5Hz | |
| Power consumption | <5W(When cutting off the capacitor) | |
| Measurement error | Voltage | <0.5%(Within the range of 80-120% rated voltage) |
| Current | ≤1% | |
| Temperature | ±1℃ | |
| Reactive power compensation parameters | Capacitor switching interval | >10S |
| Reactive capacity | Single unit <50Kvar (three-phase), <30Kvar (split phase) | |
| Online | ≤31 units | |
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Reliability parameters |
Control accuracy | 100% |
| Control allowable frequency | 1 million times | |
| Attenuation rate of operating time of capacitor capacity | ≤1%/year | |
| Attenuation rate of capacitor capacity switching | ≤0.1%/10000 times | |
| Annual failure rate | ≤0.1% | |
| Environment condition | Ambient temperature | -40℃-+40℃ |
| Relative humidity | 0℃,20~90% | |
| Altitude | ≤2000m | |
| Electrical safety | The electrical clearance and creepage distance, insulation strength, safety protection short-circuit isolation, and adoption and control circuit protection all comply with the corresponding provisions of the Chinese power industry standard DL/T842-2003"Conditions for Use of Low Voltage Parallel Capacitor Devices". | |
Overview of BYKXG/S/480-50/P7 Series Anti-harmonic Intelligent Smart Capacitor
BaoYu Holdings Co., Ltd’s BYKXG/S/480-50/P7 Series Anti-harmonic Intelligent Smart Capacitor is a premium 3 Phase Power Capacitor designed to resolve Harmonics Problems and optimize Reactive Power Compensation in industrial and commercial systems. Combining Capacitors In Series technology with Anti-Harmonic filtering (featuring a 2 Capacitor design), this LV Capacitor stabilizes voltage (Capacitor To Increase Voltage), improves power factor, and protects Capacitor Electric Circuits from harmonic distortions up to 50th order. Ideal for 3 Phase Electric grids (480V), its smart monitoring ensures real-time Capacitor Operation tracking, including Capacity Of The Capacitor, while addressing Function Of Capacitor In AC systems for energy efficiency. As a trusted Capacitor Maker, BaoYu delivers robust, IEEE 519-compliant solutions for renewable energy integration, industrial plants, and facilities needing reliable Harmonic Filter Capacitor performance. Elevate grid reliability and reduce costs with this advanced Power Capacitor solution.

Working Principle of BYKXG/S/480-50/P7 Series Anti-harmonic Intelligent Smart Capacitor
Intelligent components
All electronic components in intelligent components adopt wide temperature and industrial grade, whichcan adapt to harsh environments with large temperature changes and severe electromagnetic interference and can work reliably for a long time without interruption.
Zero crossing switching synchronous switch technology based on mechanical contacts
The company has summarized the characteristics and drawbacks of mechanical contactors, contactless thyristors, and composite switches, and combined years of development and practical operation experience.independently developed a new generation that uses micro electronic software and hardware technology to effectively control the contacts of mechanical electro magnetic relays; lmplement synchronous switching technology for zero crossing and switching low-voltage power capacitors based on mechanical contacts,When the AC voltage at both ends of the contact is zero, it closes, and when the contact is closed, it openswhen the AC current at both ends is zero. Avoid the impact of inrush current generated during capacitorinput on system voltage. Reduce equipment losses and improve the service life of capacitors.
Dry series reactor
The dry series reactor in the product uses high magnetic flux imported materials, which is lightweight, small in size, low in power consumption, low in temperature rise, and low in noise. it is internally equipped with a thermal relay that monitors its temperature and sends a signal when the set temperature is exceeded.Micro current sampling transformer.The current sampling of the capacitor adopts a micro transformer with permalloy core, which has good in earity, high freauency characteristics, and small difference, ensuring the accuracy and stability of currentand current type protection.
Quick circuit breaker
The fast circuit breaker adopts a molded case circuit breaker, which opens within 100ms at 10 times therated current. lt is used for current fast switching main protection to avoid tripping the upper switch, andalso serves as the power connection terminal and power main switch.
Main Product Function
Harmonic suppression function: Effectively suppress high-order harmonics and inrush currents, andreject harmonics from entering the capacitor device. lt can eliminate the impact of high-orderharmonics on capacitors, protect circuits and capacitors from overload, prevent capacitor overheatingaging of insulation media, decline in self-healing performance, and reduce service life.
Synchronous switching function: in conjunction with a dedicated controller, it has fast response time.can achieve dynamic tracking, and can accurately switch when the current and voltage are zero, with little impact from harmonics.
Split phase compensation function: Split phase compensation type product, each phase capacitor canbe switched separately, improving the accuracy of reactive power compensation and providing goodcompensation for three-phase reactive power imbalance.
Measurement function: distribution voltage, current, reactive power, power factor measurement, Ciohase and transformation ratio automatic measurement, correction; Measurement of three-phasecurrent and internal temperature of each capacitor.
Protection function: circuit current quick switching and overcurrent protection; Capacitor overvoltageand undervoltage protection; Capacitor over temperature, phase failure, and three-phase imbalanceorotection. When the temperature of the capacitor exceeds 65 degrees, the entire capacitor will beshut down for protection, improving its service life and ensuring the safe operation of the system.
Signal function: the switching status, over/under compensation status, and over/under voltage statussignals of capacitors; Protection action type and self diagnosis fault type siqnal.
Communication function: RS-485 communication connection is used between the capacitor and the controller, which facilitates the uploading of a large amount of sampling data and the exchange of information with external monitoring terminals, forming the system's work.
Intelligent network control: it can automatically detect and track changes in system reactive power, and automatically switch capacitor banks, Capacitors with the same capacily are switched according to the principle of cycling, while capacitors with diferent capacities are switched according to the principle of adaptation. Capacitors are first in, first out, and first out, first in; Capacitors with low operating temperature shall be put into operation first, while those with high temperature shall be put out first.The compensation working condition is constant, and the capacitor is switched on and off periodically to avoid long-term operation of a single capacitor.
Product Wiring Method

Size Informations

| Model | Capacity | H |
| BYKXG/S/480-50/P7 | 50 | 485 |
Manufacture High-Quality Products With Great Care



Storage Workshop

Production workshop

Workshop Vedio
BaoYu Holdings Co., Ltd. – Empowering Smart Grid Excellence——Innovative Solutions for Power Quality Management & Circuit Protection
As a global leader in intelligent power quality optimization and circuit protection systems, BaoYu Holdings Co., Ltd. specializes in delivering cutting-edge solutions for harmonic mitigation, reactive power compensation, three-phase imbalance correction, and energy efficiency enhancement. With over a decade of expertise, we serve industries worldwide, including manufacturing, petrochemicals, metallurgy, renewable energy, and infrastructure, ensuring stable and efficient power distribution networks.
Core Products & Services
Smart Power Quality Solutions
- Active Harmonic Filters (APF): Eliminate harmonics up to 99%, safeguarding sensitive equipment and compliance with international standards.
- Static Var Generators (SVG): Dynamic reactive power compensation for voltage stabilization and reduced energy loss.
- Intelligent Capacitors & Non-Contact Switches: Precision-controlled capacitor banks with zero-crossing switching technology for seamless integration into smart grids.
- Automatic Reactive Power Compensation Controllers (e.g., JKWD5/JKW58 Series): Real-time monitoring and adaptive correction for optimal power factor adjustment.
Circuit Protection & Automation
- Low-Voltage Composite Switches (BYFK Series): Integrated circuit breakers for overload and short-circuit protection.
- Microcomputer Protection Devices & Distribution Automation Terminals: Enhanced grid reliability through IoT-enabled fault detection and remote management.
Competitive Advantages
1. R&D Excellence & Technological Leadership
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Collaborations with Shanghai Jiao Tong University, Zhejiang University drive innovation in energy quality algorithms and hardware design.
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Multiple National Patents and certifications, including High-Tech Enterprise and Zhejiang Provincial Sci-Tech SME.
2. Advanced Manufacturing Capabilities
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State-of-the-art production facilities with CNC mold centers and AI-driven quality inspection systems, ensuring ISO-compliant precision.
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Scalable OEM/ODM services tailored to regional grid standards .
3. Global Service Network
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24/7 Technical Support: On-site commissioning, maintenance, and remote diagnostics for minimal downtime.
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Proven track record in 15+ countries, including the US, Germany, Southeast Asia, and the Middle East.
Why Choose BaoYu?
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Customized Solutions: Tailored designs for industrial, solar, and wind power applications.
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Cost Efficiency: Reduce energy waste by up to 30% and extend equipment lifespan.
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Sustainability Focus: Support carbon neutrality goals with green grid technologies.
Business license

High-tech enterprise certificate
ISO management system certification



Corporate honors


Product certification certificate

Product testing report

Company patent certificate

Well-known domestic partners




