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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
BSMJ0.45-7-3 Series Self-Healing Power Capacitors Low Voltage Shunt Capacitors 450V Three Phases
Model Meaning

Main Parameters of BSMJ 0.45-6-3 Series Self-Healing Shunt Power Capacitor
| Model | BSMJ0.45-7-3 Series Self-Healing Shunt Power Capacitor |
| Temperature | -25℃~+50℃ |
| Rated Working Moisture | ≤ 85% |
| Altitude | Not Exceed 2000m |
| Operational Voltage | 450V AC |
| Rated Capacity | 6kvar |
| Capacity Tolerance Level | -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 Introduction of BSMJ 0.45 - 6 - 3 Series Self-Healing Shunt Power Capacitor
The BSMJ0.45-7-3 Series Self-Healing Low-Voltage Capacitors are engineered to deliver superior performance in three-phase power systems. Designed as high-efficiency Power Capacitors, these Electric Capacitors operate at a Capacitor Working Voltage of 450V, ensuring reliable energy compensation and power factor correction for industrial and commercial applications. Their advanced Self-Healing technology automatically repairs minor dielectric damage, extending service life while maintaining stable Capacitor Energy storage (also known as Condensator Energy). Ideal for Power of 3 Phase Circuit systems, these AC Capacitors minimize energy loss, reduce harmonic distortion, and enhance grid stability. Compatible with AC Current Capacitor setups, they are widely used in motor systems, AC Line Filter Capacitor networks, and AC Capacitor Circuit configurations, making them a versatile solution for optimizing Capacitor PSU efficiency in low-voltage environments.

Features of BSMJ 0.45 - 6 - 3 Series Self-Healing Shunt Power Capacitor
The BSMJ0.45-7-3 Series Self-Healing Low-Voltage Capacitors are engineered to optimize power system compensation in 50/60Hz low voltage electrical systems (up to 450V). Designed for three-phase circuits, these AC capacitors enhance energy efficiency by dynamically correcting power factor imbalances, reducing reactive power losses, and stabilizing voltage fluctuations. Their self-healing technology ensures long-term reliability, automatically repairing minor dielectric damage to maintain performance—ideal for industrial and commercial applications requiring robust electric capacitor solutions to improve power quality.
Advanced Technical Specifications for Enhanced Power Quality
With a rated capacity of 7kvar and compliance with IEC60831 and GB/T12747 standards, this power capacitor series supports seamless integration into PWM capacitor configurations and charging capacitors in series setups. The three-phase △-connected design ensures efficient harmonic filtering and stable operation under high-current conditions (up to 1.3× rated current). Built-in discharge resistors reduce residual voltage to <50V within 3 minutes, enhancing safety in power of 3 phase circuit environments. The aluminum casing and metallized film core provide durability in temperatures ranging from -25°C to 50°C, making it suitable for harsh industrial settings.
Applications and Reliability for Modern Energy Demands
Ideal for renewable energy systems, manufacturing plants, and data centers, the BSMJ0.45-7-3 Series excels in capacitor elec applications where voltage quality and system longevity are critical. Its pollution-resistant dielectric oil and anti-touch terminals ensure compliance with international safety standards, while the compact design simplifies installation in space-constrained low voltage electrical systems. By minimizing energy waste and maximizing transformer capacity, this E capacitor solution delivers cost savings and sustainability for businesses prioritizing efficient power managemen.

Product size information

| Model | Rated voltage(kv) | Rated capacity(kvar) | Total electrical capacity(μ F) | Rated current(A) | Boundary dimension LxW xH(mm) |
| BSMJ 0.45-5-3 Series | 0.45 | 7 | 110 | 9 | 170×60×105 |
Quality is Determined by Materials

High-Quality Metallized Polypropylene Film with Superior Self-Healing Performance.The BSMJ Series utilizes advanced metallized polypropylene film technology, ensuring exceptional self-healing capabilities. When localized voltage overloads or dielectric breakdowns occur, the metallized film instantly vaporizes the damaged area, restoring functionality without compromising performance. This design minimizes downtime and extends the product lifespan, making it ideal for industrial power systems requiring stable reactive power compensation. The film’s low dissipation factor (tanδ ≤ 0.002 at 100Hz) further enhances energy efficiency, reducing heat generation and operational losses by up to 0.1%.

Environmentally Safe Semi-Solid Dielectric & Anti-Corrosion Design.The capacitor employs a semi-solid dielectric material with a melting point exceeding 70°C, eliminating risks of oil leakage and environmental contamination. This innovation ensures compliance with global eco-friendly standards while maintaining stable performance in high-temperature environments (up to 50°C). Additionally, the corrosion-resistant aluminum casing features a double-layer anti-corrosion coating and anti-counterfeit sealing, enhancing durability in harsh industrial settings. The compact, cylindrical design reduces weight and volume by 75% compared to traditional models, enabling flexible installation in space-constrained panels.

Internally Integrated Safety Mechanisms & Compliance with Global Standards.Equipped with built-in discharge resistors and overvoltage protection, the BSMJ Series automatically discharges residual voltage to below 50V within 3 minutes after power-off, ensuring operator safety and preventing electrical hazards. The product adheres to stringent international certifications, including IEC 60831-2002 and GB/T 12747-2004, guaranteeing compatibility with 50Hz/60Hz AC systems (rated voltage up to 1200V).
Product usage scenarios



Industrial field New energy field Electric power engineering field
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Baoyu Holdings Limited: Your Global Partner in Intelligent Power Quality Solutions
Baoyu Holdings Limited is a leading innovator in smart, fully controllable power quality equipment, dedicated to delivering cutting-edge solutions for industrial, commercial, and utility clients worldwide. With over ten years of expertise in power quality improvement and energy compensation technologies, we empower businesses to achieve optimal energy efficiency, grid stability, and operational cost savings.
Economic Strength & Industry Leadership
As a financially robust enterprise with ISO-certified manufacturing facilities and a global client base across , Baoyu combines R&D excellence with scalable production capabilities. Our patented power quality devices—including active harmonic filters, dynamic voltage regulators, and smart reactive power compensation systems—are engineered to mitigate voltage fluctuations, eliminate harmonics, and enhance power factor correction, ensuring compliance with international energy standards.
State-of-the-Art Manufacturing & Quality Assurance
Our automated production workshop integrates precision manufacturing and rigorous testing protocols, we guarantee superior product durability, customization flexibility, and rapid prototyping to meet diverse demands—from renewable energy integration to mission-critical industrial applications.
Global Logistics & Seamless Delivery
Leveraging strategic partnerships with regional logistics leaders, Baoyu ensures timely, cost-effective delivery of power quality improvement solutions to over 20 countries. Our just-in-time inventory management and localized warehousing minimize lead times, while 24/7 technical support guarantees uninterrupted post-sales service.Trust Baoyu to future-proof your energy infrastructure. Contact us today to discover how our intelligent power quality innovations can elevate your operational resilience and sustainability.
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