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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
BSMJ0.25-5-3YN Series 3 Phase Self-Healing Power Capacitors Shunt Capacitor Super Capacitor Filter Power Capacitor with 0.25V 5kvar PFC Metallized Polypropylene Film
Model Meaning

Main Parameters of BSMJ0.25-5-3YN Series Self-Healing Shunt Power Capacitor
| Model | BSMJ0.25-5-3YN Series Self-Healing Shunt Power Capacitor |
| Temperature Situation | -25℃~+50℃ |
| Rated Operation Humidity | ≤ 85% |
| Altitude | ≤2000m |
| Working Voltage | 250V AC |
| Rated Capacity of Product | 5kvar |
| 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 |
Overview of BSMJ0.25-5-3YN Series Self-Healing Power Capacitor
Product Overview and Core Features
Harmonic Mitigation and System Balance
Versatility and Operational Benefits

Working Principle of BSMJ0.25-5-3YN Series Self-Healing Power Capacitors
At the heart of the series is the self-healing metallized polypropylene film technology. When the capacitor experiences a transient overvoltage or dielectric defect, it automatically recovers its insulation by evaporating the metallization layer around the breakdown point, forming a blank insulation area. This mechanism ensures continuous operation of the capacitor and significantly extends its service life, making it ideal for harsh environments. The design integrates a low voltage (0.25V) 5kvar capacity to provide accurate reactive power compensation while minimizing energy losses.

Features of BSMJ0.25-5-3YN Series Self-Healing Shunt Power Capacitor
1.These three-phase low voltage capacitors are equipped with advanced self-healing technology that automatically repairs minor dielectric damage, thereby extending service life and minimizing maintenance requirements. They are ideal for shunt capacitor applications, solving power quality issues while maintaining excellent performance.
2.These capacitors are designed to significantly improve power factor, effectively enhance reactive power compensation, reduce energy loss, and improve power system efficiency. They play a key role in optimizing power quality in various industrial equipment.
3.These power capacitors suppress harmonic distortion, protect electrical equipment from harmonic-related stresses, ensure smooth operation and extend the life of connected equipment. They are essential for harmonic control in power distribution systems.
4.These low voltage capacitors feature an intelligent design, providing efficient energy storage capabilities, helping to improve power quality and reduce electricity costs. Their intelligent configuration makes them suitable for modern power management systems.
5.These supercapacitors are made of metallized polypropylene film, which has excellent dielectric properties, ensuring low loss factor and high thermal stability. This material choice enhances their reliability in harsh electrical environments.
6.These 0.25V 5kvar PFC capacitors are widely used in a variety of industries and provide an effective solution for power factor correction, reactive power compensation and overall power quality improvement in low voltage systems.

Product Size Information of BSMJ0.25-5-3YN Series Self-Healing Shunt Power Capacitor

| Model | Rated voltage(kv) | Rated capacity(kvar) | Total electrical capacity(μ F) | Rated current(A) | Boundary dimension LxW xH(mm) |
| BSMJ0.45-8-3 | 0.25 | 5 | 255 | 6.7 | 170×60×125 |
The Materials Used in a Product Determine its Quality.

Advanced metallized polypropylene film to maximize power quality
The BSMJ0.25-5-3YN series three-phase self-healing power capacitors use advanced metallized polypropylene film as the core material, a strategic choice that significantly improves power quality management. This high-quality film material is carefully designed to have excellent dielectric properties, ensuring minimal energy loss during operation. By integrating this high-performance film, these capacitors are able to effectively solve key power issues such as reactive power compensation and harmonic suppression, which are essential to maintaining a stable power system.The excellent thermal stability of metallized polypropylene film enables capacitors to operate reliably even in harsh low-voltage environments. This property is particularly useful in applications that require stable power quality, as it enables the capacitor to effectively cope with fluctuations and maintain optimal performance. The material's inherent self-healing ability further enhances its reliability, as it can automatically repair minor dielectric breakdowns, reducing the risk of component failure and minimizing maintenance requirements.In power distribution systems, these capacitors play a vital role in improving power factor correction (PFC). Metallized polypropylene film ensures that the capacitors can effectively compensate for reactive power, thereby reducing energy waste and improving the overall efficiency of the grid. This not only helps reduce energy costs, but also helps mitigate harmonic distortion, which can cause equipment failure and shorten system life.
The BSMJ0.25 - 5 - 3YN series capacitors use these high-quality materials to provide a powerful solution to power quality issues. Whether used in industrial environments, commercial buildings or other electrical equipment, these capacitors provide excellent and stable performance, making them an ideal choice for customers seeking reliable power management solutions. The use of metallized polypropylene film highlights the product's commitment to improving power quality and system reliability.

Innovative self-healing design, enhanced reliability and low-voltage applications
The self-healing design of the BSMJ0.25-5-3YN series capacitors represents a significant advancement in low voltage capacitor technology. This innovative feature is designed to address the challenges posed by transient overvoltages and tiny dielectric defects, which are common in electrical systems and can cause capacitor failure if not managed properly. The self-healing mechanism works by automatically isolating damaged areas within the dielectric, effectively restoring the capacitor's functionality and extending its service life.
This design is particularly beneficial in low voltage applications where the risk of voltage spikes and fluctuations can affect the performance of electrical equipment. These capacitors integrate a self-healing function, providing a reliable solution for maintaining a steady current flow and improving overall system efficiency. The self-healing process not only reduces the need for frequent replacement, but also minimizes downtime, making it an economical choice for commercial and industrial users.In the field of power quality management, self-healing design plays a vital role in harmonic control (harmonic mitigation). By ensuring that capacitors remain in optimal working condition, they can continuously and effectively filter out harmonic distortion, which can cause problems such as overheating and equipment performance degradation. This makes the BSMJ0.25-5-3YN series capacitors an ideal choice for systems that require continuous harmonic suppression and power factor correction.In addition, the self-healing function perfectly matches the needs of intelligent capacitor applications. It enables the capacitor to operate autonomously, detect and solve subtle problems without external intervention, thereby improving the intelligence and reliability of the entire power management system. Whether operating independently or as part of a comprehensive smart grid, these capacitors can provide unparalleled performance, making them a reliable solution for improving power quality and ensuring smooth operation of the power grid.

Three-phase structure to achieve efficient reactive power compensation and unbalanced load management
BSMJ0.25-5-3YN series capacitors adopt a special three-phase structure and are carefully designed to meet the challenges of reactive power compensation and three-phase unbalance (three-phase imbalance) in power systems. This innovative design ensures that the capacitors can effectively handle complex three-phase power distribution, provide the necessary reactive power to maintain the best power factor and reduce energy loss.The three-phase configuration enables the capacitors to operate in harmony with the three-phase power systems that are widely used in industrial and commercial applications. By providing balanced reactive power compensation between the three phases, these capacitors help minimize power losses and increase the overall efficiency of the power grid. This is especially important in the common case of unbalanced loads, which, if not addressed, can result in increased energy consumption and reduced equipment life.In addition to reactive power compensation, the three-phase structure of these capacitors also plays a vital role in harmonic control (harmonic mitigation). Balanced operation of the three phases helps reduce harmonic distortion, which is often caused by unbalanced loads and non-linear electrical equipment. By reducing these harmonics, capacitors help improve power quality, ensuring that connected equipment operates at peak efficiency and extends its service life.The design of the three-phase structure also fully considers the needs of low-voltage applications. It is optimized to provide reliable performance in low-voltage environments and is suitable for a variety of installation environments. Whether used in small commercial buildings or large industrial facilities, the BSMJ0.25-5-3YN series capacitors can provide efficient reactive power compensation and solve three-phase unbalance problems.In addition, the three-phase structure meets the requirements of the smart capacitor system and can be seamlessly integrated into the intelligent power management device. This can monitor and adjust reactive power compensation in real time, further improving the efficiency and reliability of the power system. By choosing these three-phase capacitors, customers can expect higher power quality, lower energy costs, and a more stable and efficient power infrastructure.
Storage Workshop

Production workshop

Workshop Vedio
Baoyu Holding Co., Ltd
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.
Our storage facility utilizes precision climate control, automated 3D warehousing (which increases capacity by 200%), and integrated safety systems (including fire suppression, anti-static protocols, and monthly audits) to maintain zero oxidation and ensure product integrity. In addition, our cleanroom manufacturing facility features a combination of natural and LED lighting, optimized workflows, and cross-trained technicians to enhance efficiency. Automated quality control systems and ISO-certified processes ensure compliance with dimensional and electrical standards, while AI-driven analytics and stringent protocols help achieve near-zero defects. By integrating advanced automation, tailored solutions, and steadfast reliability, Baoyu provides durable, mission-critical power systems, reinforcing our status as the preferred global partner for industries that require precision and innovation.
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