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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
BY89S/450-20+10 Intelligent Combined Low Voltage Power Capacitor Three Phase Compensation 450V
Model Meaning
Product Parameters
| Project | Parameters | |
| Type | BY89S/450-20+10 | |
| The methods of compensation | Three-phase compensation | |
| Capacity of each group of capacitors（total capacity）（kvar） | 20+10 | |
| Normal operation and installation terms | Environmental Temperature | -25℃~+55℃ |
| Working Relative Moisture | 20%~90% at 40℃ | |
| Attitude | ≤2000m | |
| Power Conditions | Voltage | AC250V |
| Voltage Tolerance | ±20% | |
| Frequency of Operation | 50±1.5Hz | |
| Power Draw | ≤3VA | |
| Measurement Accuracy | Voltage and Current | 0.5% |
| Power Accuracy | 1.0% | |
| Power factor | ±0.01 | |
| Temperature | ±1℃ | |
| Time for Protection | Blocking Time | 5~60s |
| Capacitor Cutting Time | 1s | |
| Reactive power compensation | Maximum Quantity of Linked Capacitors | 31units with controller |
| 12units without controller | ||
| Electrical Safety Measurement | Insulation Resistance of Main Circuit | Test voltage 2500V(1min) |
| Protection Circuit Continuity | All earthing components are required to have a secure electrical connection with the grounding screw | |
| Security protection | The device’s casing, any metal components that could be energized, and the metal base of electrical elements that require grounding should be reliably electrically connected to the grounding screw | |
| Protection level | IP30 | |
| Sampling and control circuit protection | The current circuit for built-in sampling control in the device utilizes dedicated wiring components, with a reliable ground connection at one end | |
Capacitor Working Principle
One such intelligent capacitor is a device that improves the performance of power systems through real-time monitoring and automatic adjustment functions. The basic working principle employs capacitors in storing electrical energy and regulating current with an intelligent control system. Intelligent capacitors leverage advanced technologies such as digital control with power electronic components to dynamically adjust their capacitance value to compensate for reactive power in accordance with the real needs of the system. By monitoring parameters such as power factor, voltage, and current in the grid using internal sensors and after calculation by microprocessor analysis, the on-off state of transistor switch modes is controlled to change the capacitance of the capacitor to achieve the purpose of reactive power compensation. Much more than merely storing energy for passive usage, these intelligent devices are fully autonomous to act automatically under intelligent rules when required to regulate and control. Capacitors generally are accessory components of power systems where they can help improve power factor, reduce power losses, and improve energy efficiency. Intelligent Capacitors integrated with variable frequency drives and intelligent control systems would automatically detect the state of the grid by various real-time energy storage and release processes, thus ensuring grid stability.
The advantages of intelligent capacitors
Modular Structure
The intelligent capacitor has a modular design whereby it is small, has simple on-site wiring, and is easy to maintain. More modules are added to expand a reactive power compensation system.
Building in High-Quality Capacitors
These are self-healing low-voltage compensating capacitors, with a built-in temperature sensor that indicates the internal heating degree of the capacitor for over-temperature protection.
Built inside Switching Module
An intelligent capacitor has a built-in switching module. The switching module consists of thyristor, magnetic latching relays, zero-crossing trigger conduction circuit, and thyristor protection circuit, achieving "zero switching" of the capacitor so that inrush current impacts and operating overvoltage does not happen during the switching process. The switching module has a very fast action response speed and can be operated frequently.
Perfect Protection Design
In the intelligent capacitors available today, there are power-off protection, short-circuit protection, voltage phase loss protection, and capacitor over-temperature protection.
Advanced Control Technology
The control physical quantity is reactive power. Zero-crossing reactive power prediction and delayed multipoint sampling technologies are employed to ensure no switch-over oscillation. It fully compensates reactive power under heavy load.
Anti-Switching Oscillation Technology
Controller crash; hence, no non-compensation or over-compensation is caused. This is also prevented by the principle that prevents the occurrence of capacitor-switching oscillation.
Automatic Reactive Power Compensation
Intelligent capacitors will automatically switch on and off depending on the loads' reactive power absorption and give dynamic reactive power compensating for power quality improvement. Intelligent capacitors can stand alone or in parallel with several other units.
Friendly Human-Machine Interface
Shows operating parameters for the equipment: current, voltage, and reactive power.Switching status, faults on the composite switch module, and communication status.Convenient switching between the debugging/working state and manual/automatic operations can also be achieved.
Static Var Generator (SVG) and Intelligent Capacitor
In terms of working principles, power capacitors are like generators that produce capacitive reactive current and can provide the reactive power required by inductive loads. Using power capacitors for compensation has advantages such as convenience in increasing or decreasing installation locations, simple installation, short construction period, low investment cost, and simple operation and maintenance. However, capacitors need to be used together with other equipment (reactors, thyristors, controllers, etc.) to form a capacitor compensation cabinet for compensation.An intelligent capacitor is a type of power capacitor with automatic detection, regulation and protection functions. It can compensate for power grid harmonics and improve the system power factor, making the power system more stable, reliable and safe.Different from capacitors, SVG (Static Var Generator) detects parameters such as current and power factor through power electronic components and emits the required reactive current after calculation. Using SVG static var generators for compensation has advantages such as good compensation effect, high compensation accuracy, and fast response speed. However, it has disadvantages such as relatively high investment cost and many installation limitations.
Knowledge about the maintenance of capacitors
1. Visual Meant Inspection
Physical inspection should be done periodically for external damage or aging on the shell, terminal blocks, and surrounding insulating materials. Damaged shells or loose terminal blocks might adversely affect capacitor performance and may, in extreme cases, lead to safety incidents.
2. Cleaning Maintenance
Accumulation of dust and other impurities may adversely affect the heat dissipation and insulation performance of the capacitors. Therefore, periodic cleaning of capacitorcases and immediate surroundings is very important for proper maintenance.
3. Monitor Ambient-Operating Temperature
Ensure that the temperature of power capacitors is maintained within the specified range. Avoid too high or too low temperatures, which may affect the normal operation of the capacitors. The maximum allowable operating temperature range of capacitors is -25°C to +50°C. As soon as their operating parameters exceed these values, the capacitor should be put out of commission.
4. Capacitance measurement
Capacitance is considered one of the most important parameters of power capacitors. Capacitors must be regularly tested for capacitance using a capacitance measuring instrument specifically designed for this purpose and should be found to be within normal limits. If capacitance is observed to lie outside the normal limits, replacements or repairs should be undertaken on an urgent basis.
5. Insulation resistance test
Regularly assessed insulation resistance tests are necessary to verify the soundness of the insulation of the capacitor. Below-normal insulation resistance value leads to the possibility of leakage current, and in extreme cases, even short-circuiting. Strict adherence to the operating procedure and criterion of test voltage and time should be ensured.
6. Immediate Replacement of Faulty Capacitors
Power capacitors might age or appear faulty after prolonged service. Failure to address will either result in sub-par compensation or-the ever-gleaming worst-safety accidents. Hence, any faulty capacitor or other associated components should be attended to without delay.
| Type | W | W1 | L | L1 | H |
| BY89S/450-20+10 | 80mm | 50mm | 365mm | 20mm | 290mm |
Why choose us
The intelligent capacitor can display in real-time the three-phase voltage, three-phase current, power factor as well as the operational status of the capacitor via data monitoring and the high-definition liquid crystal display window, thus assisting users to understand in totality the operation status of the power system. At the same time, under system malfunction (such as overvoltage, overcurrent, or very low power factor), the intelligent capacitor will immediately issue an alarm for the purpose of safe operation of the equipment. This improves operating efficiency of the power system, reduces energy consumption, and prolongs the service life of the equipment.
Small size and low power consumption make smart capacitors possible to save money effectively. The design-wise flexibility combined with a user-friendliness makes maintenance with smart capacitors very easy compared to ordinary capacitors making smart capacitance become one of the feasibly efficient yet economical options in the power system that can cater to the modern needs of industry and commerce for power management.
The intelligent capacitor is provided with an anti-counterfeiting cover resistant to corrosion. Due to excellent methods in manufacture and double anti-corrosion treatment, its resistance is increased to great extent. In addition, its originality makes the anti-counterfeiting design effective and also ensures very delicate and beautiful appearance to it. These thus improve a good performance and appearance despite the varying environments of an intelligent capacitor as well as increased life and reliability.
Application Scenarios
Car charging pile Grid power system
Urban construction Industrial system
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
Storage Workshop
The capacitor storage facility boasts a spacious layout, designed to house a large inventory of capacitors and fully support production demands. Its well-lit and hygienic environment not only fosters an efficient workspace but also ensures secure storage conditions for all equipment. The strategically organized open floor plan provides ample spacing between units, facilitating smooth operations, streamlined management, and reduced risk of accidents.To maintain optimal storage conditions, the facility is equipped with advanced temperature and humidity control systems, safeguarding capacitors from damage caused by environmental fluctuations. Additionally, trained professionals conduct routine inspections and inventory checks, guaranteeing the safety and reliability of each capacitor. Together, these features create a secure, efficient, and scalable storage solution that serves as a reliable foundation for seamless production.
Production workshop
The capacitor production workshop is designed to deliver specialized manufacturing in a clean, well-lit environment, fostering an atmosphere of efficiency and precision. Every aspect of the workshop is meticulously engineered to ensure a smooth and streamlined production process, from raw material handling to final assembly.Our highly skilled assemblers bring extensive experience and a diverse range of technical expertise, enabling them to swiftly address any production challenges that arise. Their professionalism and teamwork have significantly boosted production efficiency, ensuring that every batch of capacitors meets stringent quality standards.This state-of-the-art facility combines advanced technology with rigorous quality control, delivering high-performance capacitors that exceed customer expectations. From industrial grids to renewable energy systems, our production workshop is the backbone of reliable, high-quality power solutions.
