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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
BY82 DS/480-30 Series Anti-Electromagnetic Pulse Low Electromagnetic Interference Intelligent Combined Anti-Harmonic Power Capacitor
Model Meaning of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor

Main Specifications of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor
| Model | BY82 DS/480-30 | |
| Working power supply conditions | Rated voltage | 480V |
| Voltage deviation | ±20% | |
| Power frequency | 47.5~52.5Hz | |
| Power consumption | <5W(When cutting off the capacitor) | |
| Measurement deviation | Voltage | ≤0.5%(Within the range of 80-120% rated voltage) |
| Current | ≤1% | |
| Temperature | ±1℃ | |
| Reactive power compensation situation | Capacitor switching interval time | >10S |
| Reactive capacity | Single unit ≤50Kvar (three-phase), ≤30Kvar (split phase) | |
| Online | ≤31units | |
| Reliability parameters | The accuracy of control | 100% |
| Control allowed number of times | 1 million times | |
| Attenuation rate of working time of capacitor capacity | ≤1%/year | |
| Attenuation rate of capacitor capacity switching | ≤0.1%/10000 times | |
| Failure rate of annual | ≤0.1% | |
| Environment situation | Surrounding environment temperature | -40℃~+40℃ |
| Relative humidity | 40℃,20~90% | |
| Altitude | ≤2000m | |
| Electrical security | The electrical gap and creepage distance, insulation strength, safety measures, short-circuit isolation, and implementation and control circuit protection all adhere to the relevant stipulations of the Chinese power industry standard DL/T842-2003 “Conditions for Use of Low Voltage Parallel Capacitor Devices.” | |
Product Overview of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor

Main Functions of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor
Excellent reactive power compensation
BY82 DS/480 - 30 Series excels in reactive power compensation. It acts as a powerful power capacitor, injecting or absorbing capacitive reactive power to balance the reactive power flow in the power system. With its intelligent control system, it is able to accurately manage Pfc current, voltage and power, similar to a Pfc generator. This can significantly correct the power factor of the three-phase system and the entire power system, thereby reducing power losses in transmission and improving the efficiency of the low-voltage power system.
Advanced anti-harmonic control
As an anti-harmonic power capacitor, this series of capacitors combines passive and active filtering technologies. Its 14% reactance ratio is designed to resonate at specific harmonic frequencies, thereby blocking or attenuating harmonic propagation. For low-order harmonics, passive components work together to shunt harmonic currents. For high-order harmonics, the intelligent control system generates reverse currents to offset the harmonic components, thereby improving power quality.
Robust three-phase unbalance mitigation
Although the BY82 DS/480-30 series capacitor is a single-phase capacitor, it plays a vital role in three-phase unbalance correction. It independently monitors the reactive power demand of each phase in the three-phase distribution system. When an imbalance is detected, it adjusts the reactive power compensation of each phase accordingly. This ensures the balance of three-phase voltage and current, reduces the load on three-phase electrical equipment, and improves the reliability of the distribution network.
Excellent anti-electromagnetic pulse and low electromagnetic interference design
This series of products is resistant to electromagnetic pulses. It can withstand sudden electromagnetic pulses and protect itself and other electrical equipment in the system. In addition, its low electromagnetic interference design can minimize interference with other equipment. This makes it very suitable for use in high-tech and sensitive electrical equipment environments, thereby maintaining the stability of the overall electrical environment.
Intelligent monitoring and adaptive control
The BY82 DS/480-30 series uses an intelligent combination design that continuously monitors electrical parameters such as voltage, current and harmonic content. It is able to adaptively adjust operations based on real-time data. For example, when the load changes, it can quickly adjust reactive power compensation and anti-harmonic filtering to ensure optimal performance and stable power quality.
Enhance power quality assurance
Overall, the BY82 DS/480-30 series improves power quality across the board. It stabilizes voltage quality by addressing reactive power, harmonics, and three-phase imbalance issues. This not only extends the life of electrical equipment, but also ensures that the entire power distribution system operates efficiently, whether in industrial plants, commercial buildings, or other power-consuming facilities.

Operation Principle for BY82 DS/480-30 Series Anti-Harmonic Power Capacitor
Reactive Power Compensation Principle
BY82 DS/480-30 series anti-electromagnetic pulse low electromagnetic interference intelligent combined anti-harmonic power capacitor adopts the basic principle of capacitive reactance to achieve efficient reactive power compensation. As a special power capacitor, it can actively respond to the reactive power demand in the power system. In a power system containing inductive loads such as motors and transformers, these loads consume reactive power and cause a low power factor, and the capacitor injects capacitive reactive power into the circuit.It is equipped with an intelligent control system that continuously monitors electrical parameters such as PFC current, voltage and power. Similar to a PFC generator, it can accurately adjust the amount of reactive power injected or absorbed. By balancing the reactive power flow, it can significantly improve the power factor correction of the three-phase system and the entire power system. This process can reduce power losses during transmission, improve the efficiency of the low-voltage power system, and optimize the quality of power supply.
Anti-harmonic working mechanism
In terms of harmonic control, the BY82 DS/480 - 30 series uses a combination of advanced passive and active filtering technologies. Its 14% reactance ratio is carefully designed to produce resonance at specific harmonic frequencies, thereby effectively blocking or attenuating the propagation of harmonics in the electrical system. When low-order harmonics in the current are detected, the passive components in the capacitor (such as inductors and capacitors) work together to shunt these harmonic currents to sensitive electrical equipment.For higher order and more complex harmonics, the intelligent control system takes over control. It analyzes the harmonic components in real time and generates counter currents that are exactly opposite to the harmful harmonic phases. These counter currents cancel out the harmonic components, ensuring clean and stable power supply. With this dual approach, anti-harmonic power capacitors can effectively suppress harmonics, protect electrical equipment from potential damage caused by overheating and interference caused by harmonics, and thus improve the overall power quality.
Three-phase unbalance correction principle
Although the BY82 DS/480-30 series capacitor is a single-phase capacitor, it plays a vital role in three-phase imbalance correction. It is integrated into the three-phase power distribution system and has the function of independently monitoring each phase. The capacitor continuously evaluates the reactive power demand of each phase. When an imbalance is detected, that is, the reactive power consumption of one phase is significantly different from the other phases, it adjusts the reactive power compensation accordingly.
It balances the three-phase voltage and current by injecting or absorbing the right amount of capacitive reactive power in each phase. This balancing action can relieve the stress on three-phase electrical equipment such as motors and transformers, preventing problems such as overheating and premature failure. Therefore, it improves the reliability of the three-phase distribution network and ensures the stable operation of the connected electrical equipment.
Anti-electromagnetic pulse and low electromagnetic interference principle
BY82 DS/480 - 30 series has advanced anti-electromagnetic pulse (EMP) and low electromagnetic interference (EMI) characteristics. To achieve anti-EMP protection, it uses special shielding materials and circuit design that can absorb and dissipate the energy of sudden electromagnetic pulses. When EMP occurs, these components will divert excess electromagnetic energy to prevent it from damaging capacitors and other electrical devices in the system.
In terms of low EMI, the capacitor's internal circuitry is carefully designed to minimize the electromagnetic field it generates during operation. By reducing its own electromagnetic radiation, it can minimize interference with other sensitive electrical equipment nearby. This makes it an ideal choice for environments that use high-tech sensitive equipment, such as data centers or precision manufacturing facilities, ensuring the stability of the overall electrical environment.
Intelligent monitoring and adaptive control principles
The BY82 DS/480 - 30 Series features an intelligent combination design that continuously monitors key electrical parameters including voltage, current, harmonic content and reactive power levels. A high-performance microcontroller combined with advanced software algorithms processes the data collected from the various sensors inside the capacitor.Based on real-time analysis of these data, the capacitor can adaptively adjust its operation. For example, when the power load changes (such as an increase in the number of inductive devices started at the same time), the capacitor can respond quickly. It modifies the reactive power compensation level and fine-tunes the anti-harmonic filtering intensity to maintain optimal performance and stable power quality, ensuring that the capacitor operates efficiently under various operating conditions.

Product Wiring Method of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor

Product-Related Size Information of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor

| Type | H(mm) | Capacity |
| BY82 DS/480-30 Anti - Harmonic Capacitors | 375 | 30kvar |
Applications of BY82 DS/480-30 Series Anti-Harmonic Power Capacitor

Commercial buildings and office spaces
Commercial buildings and office spaces are equipped with a variety of electrical equipment, including lighting systems, air conditioning systems, and elevators. In the lighting system, fluorescent lamps and LED lamps generate certain harmonics. For example, the ballasts used in fluorescent lamps will introduce harmonic currents into the power system. The compressors and fans of large central air conditioning systems are motor loads that consume a lot of reactive power. The frequent start and stop of elevators will also cause impacts on the power grid and affect the power quality.Poor power quality not only increases equipment energy consumption and shortens equipment life, but also affects the normal operation of electronic equipment. In an office environment, unstable power quality can cause computer crashes and data loss, thereby reducing work efficiency.BY82 DS/480-30 series anti-harmonic power capacitors can optimize the complex power environment of commercial buildings and office spaces. For lighting systems, they can effectively filter out harmonics, extend the service life of lamps, and reduce lighting energy consumption by 10%-15%. For air conditioners, elevators and other equipment, they can accurately compensate for reactive power, improve equipment operating efficiency, and reduce equipment noise and vibration. By improving the quality of power, they can ensure the stable operation of office equipment and reduce economic losses caused by equipment failures. At the same time, they can create a comfortable and stable power environment and improve the operating quality of commercial buildings and office spaces.

Power transmission and distribution system
The transmission and distribution system covers a wide range, involving numerous transmission lines, substations, and various types of loads. Long-distance transmission lines have large inductance due to their long length. This inductance causes a large amount of reactive power loss during power transmission. As reactive power is consumed in the transmission line, the line voltage drops, affecting the stability of power supply. For example, in a high-voltage long-distance transmission line from a power plant to a substation hundreds of kilometers away, the line inductance causes a considerable voltage drop, which reduces the efficiency of power transmission.Substation equipment (such as transformers) also consume reactive power to establish a magnetic field to achieve energy transmission. In addition, with the access of distributed energy sources such as photovoltaic power stations and wind farms, their output power is volatile and intermittent, which brings new power quality problems to the power grid, such as harmonic pollution, voltage fluctuations, flicker, etc.BY82 DS/480-30 series products are indispensable and important equipment in the power transmission and distribution system. In the transmission line, it can be used as a reactive power compensation device to compensate for the reactive power loss of the transmission line, reduce the voltage drop, and improve the transmission efficiency, which can usually increase the transmission capacity by 15%-20%. In the substation, it provides stable reactive power support for transformers and other equipment to ensure their normal operation. In response to the problems caused by the access of distributed energy, it can effectively control harmonics, stabilize voltage, enhance the power grid's ability to absorb distributed energy, ensure the safe, reliable and efficient operation of the transmission and distribution system, reduce the operating costs of the power grid, and improve the reliability of power supply.

Industrial Manufacturing
In the field of industrial manufacturing, various large-scale equipment such as motors, welding machines, and induction furnaces are widely used. These devices usually exhibit inductive load characteristics during operation. For example, motors consume a large amount of reactive power to establish and maintain the magnetic field required for their rotation. This consumption of reactive power leads to a low power factor. A low power factor means that a large part of the electrical energy is used for non-productive purposes, such as generating a magnetic field instead of performing useful mechanical work. As a result, the overall efficiency of electrical energy utilization is greatly reduced.In addition, nonlinear load devices such as inverters and arc furnaces will generate a large number of harmonics, which will distort the sine waveform of the power supply and interfere with the normal operation of the power grid. In steel mills, the operation of arc furnaces will cause frequent and large fluctuations in reactive power demand, and will also generate a large number of high-order harmonics, which will not only affect the stable operation of their own equipment, but also spread through the power grid and interfere with other nearby equipment.BY82 DS/480-30 series anti-harmonic power capacitor plays a vital role in this context. It can accurately and dynamically compensate for the reactive power demand of industrial equipment. By providing capacitive reactive power, it effectively offsets the reactive power consumed by inductive loads. Typically, it can increase the power factor to above 0.95. The significant improvement in power factor can reduce line losses by 20%-30%. Its excellent anti-harmonic design can effectively suppress up to 95% of common harmonics, such as the 5th and 7th harmonics. This greatly improves the quality of power, ensures stable and efficient operation of industrial equipment, extends the service life of equipment, and reduces the failure rate of equipment.
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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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