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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
BSMJ0.45-8-3 Series Self-Healing Power Capacitors Low Voltage 3 Phases Power Capacitor 450V
Model Meaning
Main Parameters of BSMJ 0.45-6-3 Series Self-Healing Shunt Power Capacitor
| Model | BSMJ0.45-8-3 Series Self-Healing Shunt Power Capacitor |
| Temperature Situation | -25℃~+50℃ |
| Rated Operation Humidity | ≤ 85% |
| Altitude | ≤2000m |
| Working Voltage | 450V AC |
| Rated Capacity of Product | 6kvar |
| Capacity Tolerance Degree | -5~+10% |
| The Tangent Value of Loss Angle | At working power frequency voltage, tg δ≤0.1% at 20℃ |
| AC Withstand Voltage | 2.15 Times the working voltage between poles for 10 seconds,and 3kV between poles for 10 seconds |
| Maximum Allowable Overvoltage | 1.1 Times Rated Voltage |
| Maximum Allowable Overcurrent | 1.30 Times Rated Current |
| Self Discharge Characteristics | Add √2 Un DC voltage to the capacitor, disconnect the power supply for 3 minutes, and the remaining voltage decreases by 75V or less |
| Meet Standards | GB12747-2017、IEC60831-2014 |
Product Overview of BSMJ0.45-8-3 Series Self-Healing Power Capacitor
The self-healing low-voltage shunt capacitor is suitable for power system frequency of 50Hz or 60Hz.It is mainly used to improve power factor ,reduce reactive power loss,improve voltage quality,excavate transformer capacity,etc.It is the best power-saving product recommended by the state.BSMJ0.45-8-3 Series Self-Healing Power Capacitors by BaoYu Holdings Ltd. are High-Quality LV Capacitors engineered to optimize power factor, stabilize 3 Phase Voltage, and mitigate Harmonic distortions in industrial electric and Residential 3 Phase Power systems.
As a leading Three Phase Capacitor Supplier, this Intelligent Capacitor integrates advanced Self-Healing Power Capacitors technology to automatically repair minor dielectric faults, ensuring durability and reliability in Low Voltage Capacitor applications. Designed with two capacitors in series for enhanced voltage stability, it operates at 450V and supports a wide capacitor frequency range (50/60Hz), making it ideal for High-Quality Power System 3integration. The Smart Capacitor Series excels in balancing phase voltage, resolving three-phase imbalances, and protecting AC Capacitor-dependent equipment, while its compact Power Film Capacitor design maximizes energy efficiency for Medium Voltage Capacitors networks. Backed by a Service First Capacitor commitment, BaoYu delivers China High Quality Capacitorsthat reduce energy waste, lower costs, and uphold the power of quality across electronic machine and High Energy Capacitors applications, empowering industries to achieve sustainable Capacitor Power performance.
BSMJ0.45-8-3 Series Self-Healing Power Capacitors: Working Principle
The BSMJ0.45-8-3 series self-healing power capacitors are advanced low voltage three-phase capacitors designed to optimize electrical systems by enhancing power factor correction, reactive power compensation and harmonic filtering. This series of capacitors uses cutting-edge self-healing capacitor technology with metallized polypropylene film as the dielectric material. When a minor voltage surge or dielectric breakdown occurs, the capacitor's self-healing mechanism automatically isolates the fault area by evaporating the metallization layer, restoring insulation integrity, and ensuring uninterrupted system operation.
Designed for low voltage power systems (rated voltage 450V), these three-phase power capacitors can balance the loads of each phase, alleviate three-phase imbalance, and stabilize voltage fluctuations. They are ideal for industrial and commercial applications that require efficient power quality solutions such as reducing line losses, improving voltage regulation, and supporting circuit protection.
The BSMJ0.45-8-3 capacitor integrates powerful safety features, including overvoltage protection and flame-retardant housing, ensuring compliance with international standards for low-voltage power capacitors. Its compact, maintenance-free design maximizes service life while providing reliable reactive power compensation and harmonic suppression, making it a key component of modern smart grid systems and energy-saving power grids.
Advantages of BSMJ0.45-8-3 Series Self-Healing Shunt Power Capacitor
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Small size and light weight: Due to the use of metallized polypropylene film as the medium, the volume and weight are only
It is 1/4 and 1/5 of the old products. - Low loss: The actual value is less than 0.1%, so the capacitor has low energy consumption, less heat, low temperature rise, long service life and good energy-saving effect.
- Excellent self-healing performance: The local breakdown of the dielectric caused by overvoltage can quickly self-heal and resume normal operation, greatly improving reliability. 4. Safety: Built-in self-discharge resistor and safety device. The built-in discharge resistor can automatically release the electrical energy on the capacitor. When the capacitor fails, the safety device can cut off the power supply in time to avoid further damage.
- No oil leakage: The capacitor uses advanced semi-solid impregnating agent with a drop melting point higher than 70°C. It does not leak oil during use, avoiding environmental pollution, and the capacitor will not fail due to oil loss.
- Advanced self-healing technology:The product uses a cutting-edge self-healing power capacitor design that automatically repairs minor dielectric breakdowns, ensuring long-term reliability and enhanced safety of low-voltage electrical systems.
- Optimized for low voltage efficiency:As a low voltage three-phase capacitor, it operates seamlessly at 450V, providing excellent reactive power compensation and reducing energy losses in industrial and commercial power grids.
- Powerful three-phase performance:Designed specifically for balanced three-phase power capacitor applications, it can effectively alleviate three-phase imbalance and stabilize voltage fluctuations, improving overall power quality management.
- High durability in harsh environments:Made with corrosion-resistant materials and advanced dielectric films, these industrial-grade power capacitors can withstand temperature changes and electrical stress, making them ideal for circuit protection solutions.
- Energy saving and consumption reduction:Supports harmonic filtering and power factor correction, minimizing energy waste and reducing utility bills - ideal for facilities where energy-efficient capacitor solutions are a priority.
- Easy to integrate and low maintenance cost:The compact design and self-healing capabilities reduce downtime and maintenance costs, making it a plug-and-play upgrade for low-voltage power systems requiring voltage stabilization.
Product Size Information
| Model | Rated voltage(kv) | Rated capacity(kvar) | Total electrical capacity(μ F) | Rated current(A) | Boundary dimension LxW xH(mm) |
| BSMJ0.45-8-3 | 0.45 | 7.5 | 118 | 9.6 | 170×60×105 |
Applications of BSMJ0.45-8-3 Series Self-Healing Power Capacitors
Renewable Energy Systems for Grid Stability and Reactive Power Support
Renewable energy facilities, such as solar farms and wind turbines, require dynamic reactive power support to maintain grid compliance during intermittent generation. BSMJ0.45-8-3 capacitors enhance grid stability by compensating for reactive power shortfalls caused by inverter systems. Rated at 8 kvar with a tolerance of -5% to +10%, these three-phase power capacitors provide precise compensation for fluctuating renewable energy output.For example, in solar PV plants, the capacitors are able to operate at altitudes up to 2,000 meters and in temperatures ranging from -25°C to +50°C, ensuring their reliability in extreme environments. The corrosion-resistant design and solid dielectric oil (melting point above 70°C) prevent leakage, making them ideal for outdoor installations near coastal areas910. When used with STATCOM or SVG systems, these capacitors enable seamless integration of renewable energy sources into the grid, reduce the risk of voltage sags, and improve compliance with grid codes .
Harmonic Suppression and Voltage Stabilization in Commercial Buildings and Data Centers
In commercial complexes, data centers and hospitals, BSMJ0.45-8-3 capacitors meet the challenges of nonlinear loads such as LED lighting, HVAC systems and IT equipment. These loads generate harmonics that cause voltage distortion and transformer overheating. The capacitor’s three-phase configuration and rugged design (rated at 450V AC) effectively suppress 5th and 7th harmonics while stabilizing grid voltage to within ±5% of nomina.The self-healing feature is critical in environments with frequent voltage fluctuations, such as data centers, where uninterruptible power supply is indispensable. For example, partial discharge caused by transient overvoltages is automatically repaired, ensuring continuous operation without human intervention. In addition, the compact cylindrical aluminum housing makes it easy to integrate into existing switchgear or dedicated capacitor banks, even in space-constrained switchrooms. By reducing losses caused by harmonics and improving voltage quality, these capacitors can extend the service life of sensitive equipment and reduce total cost of ownership.
Reactive Power Compensation and Energy Efficiency Optimization for Industrial Manufacturing Facilities
The BSMJ0.45-8-3 Series self-healing power capacitors are ideal for industrial manufacturing facilities with highly inductive loads, such as electric machinery, conveyor systems, and heavy production equipment. Due to the prevalence of inductive loads, these environments typically have a low power factor, resulting in increased reactive power consumption, higher electricity bills, and potential fines from utility companies. By deploying these low-voltage three-phase capacitors in centralized or decentralized compensation units, facilities can dynamically correct power factor imbalances, reducing reactive power losses by up to 30%.Self-healing metallized polypropylene film technology ensures long-term reliability even in harsh industrial conditions. For example, in metal processing plants where voltage fluctuations and harmonic distortion are prevalent, the capacitors are able to withstand 1.3 times the rated current and 1.1 times the rated voltage (up to 8 hours per day), ensuring stable performance . In addition, built-in discharge resistors can reduce the residual voltage to less than 50V within 3 minutes after power failure, allowing safe maintenance in compliance with safety standard . Integrating these capacitors with smart controllers allows real-time monitoring and adaptive compensation, consistent with Industry 4.0 energy management systems.
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Production workshop
Workshop Vedio
Baoyu Holdings Limited
Baoyu Holding Co., Ltd. was founded in 2015 and is located in Wenzhou City, Zhejiang Province. The location is excellent and the transportation is convenient. We have very rich industry experience and is a trusted supplier. The company has advanced production equipment and skilled front-line employees. Our company is mainly engaged in the production and sales of power quality products，such as active power filters, static var generators, intelligent capacitors, power capacitors, reactive power compensators, composite switches, capacitor contactors, thyristor switches, reactors. Our company knows that the development of the company depends on the innovation and quality of the products. Therefore, our products have strict quality control from the procurement of raw materials to the sale of finished products. The company has established a quality management system that meets the requirements of the international quality management system. The company continuously releases the original innovations according to the market and customer needs, and always maintains the novelty and innovation of the products. The company wants the customer's thoughts and urgency. Solving problems for customers and meeting customer needs is our eternal pursuit!Our company's products are sold worldwide. The company has won the unanimous recognition of consumers with satisfactory product quality and perfect after-sales service. We have a professional R & D team. We can accept O E M and O D M.We sincerely welcome friends from all over the world to visit our company and cooperate with us on the basis of long-term mutual benefits. We are looking forward to receiving your enquiry soon.
Core products and solutions
Smart power quality equipment:Active Harmonic Filter (AHF): Dynamically eliminates harmonics (3rd, 5th, 7th, 11th and higher) to ensure compliance with international standards such as IEEE 519 and GB/T 14549-93214.
Reactive Power Compensation System: Utilizes modular capacitors and advanced SVG (Static VAR Generator) technology to improve power factor correction (up to 0.95+), reduce energy loss and line losses
Three-phase unbalanced regulator: Automatically balances loads to mitigate voltage fluctuations and equipment overheating, improving system reliability.
Intelligent circuit breaker: integrated real-time monitoring and harmonic fault protection functions to ensure safe operation in harsh environments.
Hybrid solution:Combining passive filters (LC circuits for cost-effective harmonic absorption) with active filters (precise compensation) for industries such as manufacturing, data centers and renewable energy systems.
Competitive Advantage
Manufacturing Excellence: Advanced manufacturing technology using ISO certified processes ensures high durability and compliance with global standards. Our equipment is designed to be rugged and withstand the stresses caused by harmonics, such as transformer losses and cable overheating.
Customized services: From power quality analysis to customized system design, we provide end-to-end support, including field testing and adaptive solutions for complex grids with variable loads.
Energy efficiency focus: Energy saving and loss reduction (10-30% reduction in line losses) by optimizing harmonic distortion (THD < 5%) and reactive power demand.
Why choose us?
Proven Expertise: Over 1,000 successful projects in the steel, mining, HVAC and solar sectors, delivering measurable ROI through power quality improvements.
Innovative R&D: Continuous advancements in hybrid dynamic compensation and intelligent drive grid analysis for future-oriented energy management.
Global Compliance: Solutions comply with IEC, UL and CE standards, ensuring seamless integration into international power systems.
Business license
High-tech enterprise certificate
ISO management system certification
Corporate honors
Product certification certificate
Product testing report
Company patent certificate
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