BY82J S/480-50/P7 Series Anti-Harmonic Low Voltage Intelligent Power Capacitor Three-Phase Co-Compensation Reactive Power Compensation Intelligent Integrated Power Capacitor 480V

Model Meaning

Main parameters of capacitors

Introduction to BY82J S/480 - 50/P7  Anti - Harmonic Capacitors

BY82J S/480-50/P7 Series Anti-Harmonic Intelligent Capacitors by Baoyu Holdings Limited are advanced Power Filtering Capacitors designed for 0.4kV low-voltage power systems (480V rated AC Capacitor Voltage), combining harmonic suppression and reactive power compensation to optimize grid stability and energy efficiency. Engineered with 7% reactance rate technology, these capacitors specifically target 5th and higher-order harmonics, effectively mitigating harmonic distortion while preventing resonance risks in Series Capacitor in Power System configurations.Featuring Anti-Harmonic Intelligent Capacitors technology, this AC In Capacitor integrates zero-crossing switching to eliminate inrush currents, ensuring smooth AC Current Through Capacitor and extending equipment lifespan. The self-healing capacitor design automatically repairs minor dielectric faults, enhancing durability in industrial and commercial environments with high harmonic interference.

The working principles of BY82J S/480 - 50/P7 Anti - harmonic Capacitors

Action principle of each componentIntelligent components

• All electronic components in intelligent components adopt wide temperature and industrial grade, whichcan adapt to harsh environments with large temperature changes and severe electromagnetic interferenceand can work reliably for a long time without interruption.

Zero crossing switching synchronous switch technology based on mechanical contacts

• The company has summarized the characteristics and drawbacks of mechanical contactors, contactless thyristors, and composite switches, and combined years of development and practical operation experience,independently developed a new generation that uses microelectronic software and hardware technology to effectively control the contacts of mechanical electromagnetic relays; lmplement synchronous switching technology for zero crossing and switching low-voltage power capacitors based on mechanical contacts,When the AC voltage at both ends of the contact is zero, it closes, and when the contact is closed, it opens when the AC current at both ends is zero. Avoid the impact of inrush current generated during capacitorinput on system voltage. Reduce equipment losses and improve the service life of capacitors.

Dry series reactor

• The dry series reactor in the product uses high magnetic fux imported materials, which is lightweight, smallin size, low in power consumption, low in temperature rise, and low in noise. lt is internally equipped with athermal relay that monitors its temperature and sends a signal when the set temperature is exceeded.

Micro current sampling transformer

• The current sampling of the capacitor adopts a micro transformer with permalloy core, which has good linearity, high frequency characteristics, and small diference, ensuring the accuracy and stability of currentand current type protection.

Quick circuit breaker

• The fast circuit breaker adopts a molded case circuit breaker, which opens within 100ms at 10 times therated current. lt is used for current fast switching main protection to avoid tripping the upper switch, and also serves as the power connection terminal and power main switch.

Main Features of BY82J S/480 - 50/P7  Anti - harmonic Capacitors

• High-quality industrial low-voltage filtering power capacitors adopting very high safety standards.
• Synchronous switch technology with advanced technology is used with stable and reliable performance.
• Closed-loop circuit magnetic circuit is not saturated or consumes energy or causes electromagnetic radiation.Adopting special technologies and processes, it can effectively suppress high-order harmonics and inrush currents, with significant suppressive effects on harmonics of 3-13 or more.
• With a Modular structure, fiexible combination, convenient expansion, simple installation, and easy maintenance;Intelligent network, the 485 communication interface can be connected to the backend computer for comprehensive power distribution management.
• Decentralized control operation mode, reliable with 1 million free faults switching.
• Interface in Chinese for easy operation and maintenance, enabling on-site fault finding.
• The installation of SH explosion-proof and temperature control devices within the units improves their reliability under conditions of high harmonic stress.
• Energy-saving effects are considerable, significantly improving the power factor, reducing power, and enhancing power quality.

Main Functions of BY82J S/480 - 50/P7  Anti - harmonic Capacitors

• Harmonic suppression function: Effectively suppress high-order harmonics and inrush currents, and reject harmonics from entering the capacitor device.It can eliminate the impact of high-order harmonics on capacitors, protect circuits and capacitors from overload, prevent capacitor overheating aging of insulation media, decline in self-healing performance, and reduce service life.
• Synchronous switching function: in conjunction with a dedicated controller, it has fast response time.can achieve dynamic tracking, and can accurately switch when the current and voltage are zero, with little impact from harmonics.
• Split phase compensation function: Split phase compensation type product, each phase capacitor canbe switched separately, improving the accuracy of reactive power compensation and providing good compensation for three-phase reactive power imbalance.
• Measurement function: distribution voltage, current, reactive power, power factor measurement, CT phase and transformation ratio automatic measurement, correction; Measurement of three-phasecurrent and internal temperature of each capacitor.
• Protection function: circuit current quick switching and overcurrent protection; Capacitor overvoltageand undervoltage protection; Capacitor over temperature, phase fallure, and three-phase imbalance protection. When the temperature of the capacitor exceeds 65 degrees, the entire capacitor will beshut down for protection, improving its service life and ensuring the safe operation of the system.
• Signal function: the switching status, over/under compensation status, and over/under voltage status signals of capacitors; Protection action type and self diagnosis fault type signal.Communication function: RS-485 communication connection is used between the capacitor and the controller, which facilitates the uploading of a large amount of sampling data and the exchange of information with external monitoring terminals, forming the system's work.
• Inteligent network control: it can automatically detect and track changes in system reactive power, and automatically switch capacitor banks. Capacitors with the same capacity are switched according to theprinciple of cycling, while capacitors with different capacities are switched according to the principle of adaptation. Capacitors are first in, first out, and first out, first in; Capacitors with low operating temperature shall be put into operation first, while those with high temperature shall be put out first:The compensation working condition is constant, and the capacitor is switched on and off periodically to avoid long-term operation of a single capacitor.
• Fault self-diagnosis function: The inteligent control component of the capacitor can self diagnose the operating parameters of each phase of the body. Once a self check fault occurs, the entire machine responds quickly and exits operation.

Schematic Diagram of Product Wiring

Product size diagram

Note:

1. The standard reactance rates for the above products are P7 and P14, and other reactance rates can be selected according to customer needs.
2. The table only lists commonly used product models and specifications, and other models can be consulted for detalils.
3. The rated voltage of the P14 co compensation type product is 525V, and the rated voltage of the sub compensation type product is 300V.