-
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
BY71 0.48-20-3 Series Cylindrical Capacitor Three-Phase Cylindrical Capacitors 20Kvar Capacitance For Cylindrical Capacitor
Model meaning
Product Datas of BY71 0.48-20-3 Cylindrical Capacitor
| Model | BY71 0.48-20-3 | |
| Rated Working Voltage | 480V | |
| Capacitor Capacity | 276.5μF | |
| Rated Working Current | 24.1A | |
| Loss angle Tangent Value | ≤0.0012 at rated power frequency voltagev | |
| Capacitance Deviation | The discrepancy between the measured value and the rated value of the capacitor shall not exceed 0 to +10%, and the ratio of the maximum to minimum capacitance measured between any two line terminals in a three-phase capacitor shall exceed 1.08. | |
| Withstand Voltage Test | Interpolar | Power frequency 2.15Un, 2S |
| Polar shell | Rated voltage of 600V and below, applied voltage of 3.6kV, 5S | |
| Rated voltage of 600V and below, applied voltage of 7.2kV, 5S | ||
| Maximum Allowable Overvoltage | 1.1Un, not exceeding 8h every 24h | |
| Self Discharge Function | The capacitor is equipped with a discharge device， which can reduce the remaining voltage of the capacitor from 2Un to 75V or below within 3 minutes of disconnecting the power supply | |
| Standards | Equipped with a discharge device, the capacitor can reduce its residual voltage from 2Un to 75V or lower within 3 minutes after the power supply is disconnected. | |
Introduction of BY71 0.48-20-3 Series Cylindrical Capacitor
Ideal for harmonic system retrofits or new installations, the BY710.48-20-3 Series offers cost-effective solutions with a competitive 15 kVar capacitor price and a 10-year lifespan, reducing operational costs and carbon footprints. By addressing power quality and distributionchallenges—from motor overheating in industrial plants to voltage fluctuations in commercial buildings—these capacitors safeguard electrical equipment and enhance grid reliability. As a trusted capacitor maker, PowerRain combines cutting-edge capacitor internals and smart algorithms to deliver future-ready energy optimization for diverse sectors worldwide.
The Differences Between BY71 0.48 - 20 - 3 Series Cylindrical Capacitor and Traditional Capacitors
The BY71 0.48-20-3 series cylindrical capacitors from Baoyu Holdings Limited redefine power quality management with their advanced cylindrical design and intelligent three-phase co-compensation technology. Unlike traditional capacitors, their cylindrical structure enhances heat dissipation and durability, while the integrated smart sensor dynamically adjusts reactive compensation to maintain a power factor close to 1, reducing energy losses by up to 30%. Built-in anti-harmonic reactors suppress 5th/7th/11th harmonics, ensuring a stable voltage profile and protecting equipment from the risk of resonance. Ideal for industrial and renewable energy systems, the product combines adaptive control, harmonic suppression, and IoT monitoring to address modern challenges such as load imbalance and grid instability.
This low-voltage smart capacitor excels in energy efficiency and sustainability, minimizing maintenance costs and downtime. While traditional capacitors lack real-time regulation and are susceptible to harmonic interference, the BY71 series optimizes reactive power demand, improves grid reliability, and supports industrial applications such as semiconductor factories and solar/wind grid connection. With self-healing dielectric technology and compliance with standards, this series of capacitors provides unparalleled safety and cost savings, making it a future-oriented solution for harmonic control, three-phase co-compensation, and power quality improvement.
Key Advantages of BY71 0.48 - 20 - 3 Series Cylindrical Capacitor
1.Advanced harmonic mitigation and power quality enhancement
Designed to mitigate harmonic distortion (up to 50th order) and stabilize voltage fluctuations, ensuring compliance with IEC standards for industrial and renewable energy systems. Effectively reduces THD (Total Harmonic Distortion) by 30-50%, protecting sensitive equipment from waveform disturbances.
2. Intelligent reactive power compensation
Optimizes power factor (up to 0.98) through dynamic three-phase balance compensation, minimizing reactive power loss and energy waste. Very suitable for efficient operation of low-voltage power grids and industrial drives.
3. Strong cylindrical design and self-healing technology
The compact cylindrical structure with metallized polypropylene film ensures high capacitance density and self-healing capability to prevent dielectric breakdown, extending the service life to 250,000 hours at +70°C.
4. High temperature and high reliability performance
Nitrogen-filled, non-flammable insulation material outperforms conventional oil-filled capacitors in extreme conditions (hotspot temperatures up to +90°C). Ideal for solar inverters, wind turbines and high temperature industrial environments.
5. Intelligent three-phase compensation
Synchronous three-phase compensation (330–1000 V RMS) with built-in overvoltage protection and M6 spring terminals can reduce line losses and transformer overload by 15–20%. Plug-and-play integration into smart grid systems.
6. Energy efficiency and cost savings
By optimizing reactive power management, active power loss can be reduced by 3-7% and electricity bills can be reduced. Compatible with IoT monitoring, real-time energy analysis and predictive maintenance can be achieved.
7. Compact modular installation
The space-saving cylindrical shape (75–136 mm diameter, 218–351 mm height) with IP65-rated aluminum housing is suitable for confined spaces in substations, electric vehicle charging stations, and manufacturing plants.
8. Environmentally friendly and low maintenance cost
Dry non-toxic nitrogen filling eliminates leakage risk and environmental hazards. Maintenance-free design, ensures reliable operation for more than 10 years under harsh conditions.
Product Dimensions of BY71 0.48 - 20 - 3 Series Cylindrical Capacitor
| Model | M | H | Installation sole |
| BY71 0.48-10-3 | 106mm | 245mm | M16×25mm |
High - quality Materials Excellent Quality and Fine Products
1. Advanced cylindrical design, enhanced thermal stability and harmonic resistance
The BY71 0.48-20-3 Series Cylindrical Capacitors feature a rugged cylindrical structure that outperforms conventional box-type capacitors in terms of heat dissipation and electromagnetic interference (EMI) suppression. Unlike conventional designs that are prone to localized overheating, the cylindrical structure ensures uniform heat distribution, which reduces hot spots by 30% and extends service life by 40% under high load conditions. This is critical for low-voltage power systems (0.48kV) where continued heat buildup can cause dielectric material degradation and premature failure.The capacitor’s anti-harmonic structure integrates a double layer of self-healing metallized polypropylene film, designed to withstand high-frequency harmonic distortion up to the 50th order. BY71 series capacitors suppress harmonic resonance risks by integrating anti-harmonic reactors tuned for the 5th/7th/11th harmonics, ensuring a stable voltage curve even in non-linear load environments such as variable frequency drives (VFDs) or solar inverters. In addition, the cylindrical design reduces eddy current losses by 25%, thereby improving the energy efficiency of three-phase co-compensation systems.Material innovation: Ultra-pure aluminum electrodes and nitrogen-injected epoxy encapsulation ensure corrosion and moisture resistance, which is critical for harsh industrial environments. This design synergy meets IEC standards and provides a service life of 20,000 hours at 85°C, twice the durability of traditional capacitors.
2. Intelligent three-phase co-compensation with adaptive IoT integration
The BY71 series redefines smart capacitor technology through its IoT-based adaptive control system that dynamically adjusts reactive power compensation based on real-time load fluctuations. Traditional capacitors rely on static switches, resulting in overcompensation or delayed response. In contrast, the BY71’s embedded sensors and Intelligent-driven algorithms achieve a near-unity power factor (PF>0.98) by optimizing three-phase co-compensation for unbalanced loads. This adaptive compensation can reduce grid losses by up to 30%, equivalent to $15,000 in annual energy savings for a medium-sized manufacturing plant. The system’s modular design allows for seamless integration with SCADA and energy management platforms, enabling remote monitoring of parameters such as capacitor drift, temperature, and harmonic distortion levels. For renewable energy applications, the capacitors’ low voltage ride-through (LVRT) capability stabilizes grid interaction during voltage sags, ensuring compliance with standards.Material Innovation: The capacitors feature a nanoscale dielectric coating to minimize leakage current and a fail-safe pressure-sensitive circuit breaker that isolates a failed cell within 2 milliseconds. This dual-layer protection prevents cascading failures, a common problem in traditional capacitor banks
3. Sustainable material selection and eco-efficient manufacturing
The BY71 series prioritizes sustainability through environmentally friendly material sourcing and a closed-loop production process. The capacitor’s aluminum housing is 95% recyclable, while the polypropylene film uses bio-based plasticizers, which reduces the carbon footprint by 40% compared to petroleum-derived alternatives. This is in line with global ESG initiatives, attracting EU and North American customers seeking green energy solutions.The ultra-low ESR (equivalent series resistance) design achieved through precision-wound foil layers minimizes Joule heating and improves operational stability. In harmonic-rich environments, the capacitor's resonance damping network (RDN) reduces THD (total harmonic distortion) by 50%, protecting sensitive equipment such as PLCs and CNC machines . In addition, the modular plug-and-play design reduces installation time by 60%, and pre-configured busbar kits ensure compatibility with existing systems.Material innovation: Advanced graphene oxide-doped electrolytes enhance ion mobility and achieve 15% higher charge and discharge efficiency than standard electrolytes. This innovative technology, combined with vacuum impregnation dielectric fluid, eliminates the risk of partial discharge even at 1.5 times the rated voltage.
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.
VOur 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.
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
