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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
BY75 Series High Quality Intelligent Reactive Power Compensation Controller AC220V Low Voltage Reactive Power Compensation Controller
Main Technical Parameters of BY75 Series Intelligent Reactive Power Compensation Controller
| Model | BY75 Series Intelligent Reactive Power Compensation Controller | |
| Supply voltage | AC 220V | |
| Sampling voltage | AC 220V | |
| Power frequency | 50Hz±5% | |
| Sampling current | 0-5A | |
| Maximum power consumption of the entire machine | 14W (Depending on the power of the controlled switching switch) | |
| Control output contact | 24 Channels,Each DC12V x 30mA | |
| Hole size | 138 x 138mm | |
| Compensation method | Co-Compensation | |
| Measurement accuracy | Voltage | ±0.5% |
| Current | ±0.5% | |
| Active Power | ±1.0% | |
| Reactive Power | ±1.0% | |
| Frequency | ±0.5% | |
| Power Factor | ±1.0% | |
| Control parameters | Control sensitivity | 30mA |
| Target COs φ (1) | 0.85~1.00 Step 0.01 Factory preset 1.00 | |
| Target COs φ (2) | 0.00-0.60 Step 0.01 Factory preset 1.00 | |
| Threshold coefficient | 0.5-1.2 Step 0.1 Factory preset 1.00 | |
| Switching delay (1) | 00s-600s Step 1/0.02 Factory preset 0s | |
| Switching delay (2) | 00s~300s Step 1 Factory preset 8s | |
| Overvoltage protection | 230V~280V Step 1V Factory preset 240V | |
| Undervoltage protection | 210V-180V Step 1V Factory preset 190V | |
| Harmonic voltage exceeding limit | 00.0%~25.0% Step 0.5% Factory preset 00.0% | |
| Harmonic current exceeding limit | 00.0%~100.0% Step 0.5% Factory preset 00.0% | |
Overview of BY75 Series Intelligent Reactive Power Compensation Controller
BY75 reactive power compensation controller is a new type of power distribution measurement and control equipment integrating data acquisition, reactive power compensation, power grid parameter analysis and other functions. It is suitable for monitoring and reactive power compensation control of AC 0.4KV, 50Hz low-voltage power distribution system.BY75 reactive power compensation controller is based on a high-speed digital signal processor and adopts AC sampling. The human-machine interface is a 128×64 dot matrix large-screen LCD display. It has functions such as power distribution monitoring, reactive power compensation, harmonic analysis, and adaptive frequency algorithm. The input signal frequency range is 45Hz~55Hz.BY75 Series High-Quality Intelligent Reactive Power Compensation Controller – Optimize Your Power System EfficiencyBoost your power quality and enhance energy efficiency with the BY75 Series Intelligent Reactive Power Compensation Controller. Designed for low voltage systems (AC220V), this advanced electric controller delivers precise reactive power compensation, ensuring optimal power factor reactive power management in your electrical power system 3-phase networks.Upgrade your power controller with the BY75 Intelligent Controller Series and experience superior reactive power compensators technology for a more efficient, reliable, and cost-effective power distribution network.Optimize. Protect. Save. – Trust BY75 Series for smarter reactive power compensation system solutions.
Key Features including:
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Intelligent Reactive Power Compensation Controller: Automatically detects and corrects reactive power in power system, improving energy power factor and reducing energy waste.
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Harmonic Analysis & Mitigation: Built-in harmonics in power detection and harmonic mitigation capabilities to protect your system from active harmonic distortions.
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3 Phase AC Motor Controller: Ensures stable operation of motors and frequency drive controller applications, minimizing voltage fluctuations.
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Smart Motor Controller & Dynamic Reactive Power Compensation: Enhances factory energy efficiency by dynamically adjusting reactive power compensators for balanced loads.
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Reactive Power Automatic Compensation Controller: Real-time monitoring and adjustment for reactive compensation, ensuring power quality factor compliance.
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Intelligent Capacitor Controller: Extends capacitor lifespan by preventing overvoltage and overheating in reactive power compensation system.
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Power of Quality: Advanced electrical reactive power management for power factories, industrial plants, and commercial facilities.
Applications :
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Reactive power compensation controller for industrial and commercial power systems
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Harmonic system stabilization in sensitive electrical networks
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Dynamic reactive power compensation for power quality improvement
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Electrical power system 3-phase optimization in manufacturing and utilities
Function of BY75 Series Intelligent Reactive Power Compensation Controller
Control signal: Comprehensive control is performed using two physical quantities: power factor and reactive current.
Common circuit configuration: The number of switching circuits is selected by the user.
Data storage: The set parameters will not be lost after power failure, and the data will be permanently stored.
Strong adaptability: The controller automatically adapts to distribution systems with different parameters, without the need for current transformer ratio or compensation capacitor capacity.
Overvoltage protection: When the grid voltage exceeds the set overvoltage value, the capacitors that have been put into operation are disconnected quickly and gradually.
Strong anti-interference ability: The unique design ensures that there will be no jamming, random switching, or failure during the operation of the equipment.
Switching oscillation prevention: Prevents repeated switching caused by low current load or overvoltage threshold.
High sensitivity: The compensator can work normally when the input signal current is as low as 0.10A.
Display error: When the input signal current varies in the range of 0.10A to 5A, the error of the displayed measured power factor value is extremely small.
Current polarity identification: The controller can identify the polarity of the sampled current and convert it automatically.
Product Wiring Method
Selected Materials, Advanced Design
Select high-quality materials to improve reliability and precision
The BY75 series of high-quality intelligent reactive power compensation controllers uses industrial-grade components to ensure optimal performance even in harsh low-voltage environments. The controller uses a corrosion-resistant aluminum alloy housing with an IP65 protection grade, which provides strong protection against dust, moisture and extreme temperatures (-25°C to +70°C), making it ideal for harsh industrial and commercial environments. At its core is a 32-bit ARM Cortex-M4 microprocessor that can quickly process data to achieve real-time reactive power compensation, voltage regulation and harmonic analysis. High-precision voltage/current sensors (accuracy grade 0.5S) can accurately measure power parameters, including active/reactive power, power factor (PF), and total harmonic distortion (THDv/THDi) up to 31st order. The modular design integrates self-healing capacitors and surge protection circuits to minimize downtime. The 4.3-inch TFT color LCD display can intuitively display the grid status, including phase imbalance and load fluctuations. The controller has dual communication ports (RS485 + Ethernet) and can be seamlessly integrated into SCADA systems to achieve remote power distribution monitoring and data logging in line with Industry 4.0 standards.
Intelligent adaptive algorithm for dynamic power grid optimization
The BY75 series reactive power compensation controller is equipped with adaptive fuzzy logic control, which can dynamically adjust the switching of capacitor banks according to the real-time load curve to ensure that the power factor correction (PFC) is accurate to within ±1% of the target value (default value 0.95-0.99). Its proprietary harmonic immunity technology can filter out up to 40% of background harmonics (THD < 5%) to prevent false triggering of non-linear loads such as inverters and LED lighting. The embedded three-phase unbalanced load compensation algorithm can reduce the neutral line current by up to 80%, effectively reducing the risk of voltage sag and equipment overheating. Advanced distribution monitoring functions include trend analysis of more than 15 parameters (kVAR, kW, kWh), and are equipped with 128MB of internal storage space to retain 365 days of historical data. Users can customize the alarm thresholds for overvoltage (280V), undervoltage (160V) and capacitor temperature (85°C), and the timestamp accuracy of the event log can reach milliseconds. For hybrid compensation scenarios, the controller supports parallel operation with the SVG/SVG+APF system to achieve comprehensive harmonic control and reactive power management under complex industrial loads.
Energy efficiency compliance and multi-industry applications
The BY75 series is certified to international standards, provides 98.5% compensation efficiency, reduces line losses by 15-30%, and meets the ENERGY STAR standard for utility rebates. Its multi-rate optimization feature automatically prioritizes capacitor switching during peak demand hours, significantly reducing penalties due to low power factor (PF) (PF < 0.9). The device excels in a variety of applications:
• Manufacturing: Stabilize voltage for CNC machine tools and welding equipment, reducing energy costs by 12-18%
• Renewable energy: managing reactive power fluctuations from solar/wind farms to meet grid code requirements
• Commercial: Eliminate PF losses in HVAC intensive buildings while providing harmonic analysis for IT load safety
• Mining: Withstands vibration (5-500Hz, 5G) and electromagnetic interference (EN 61000-6-2) in substations
Storage Workshop
Production workshop
Workshop Vedio
Baoyu Holdings Co., Ltd. specializes in the production of intelligent fully controlled power quality products suchas active power filters, static var generators, intelligent capacitors, power capacitors, reactive powercompensators, composite switches, capacitor contactors, thyristor switches, reactors, etc. High qualityproducts have cultivated an international market and are exported to more than ten countries such asEurope, America, Southeast Asia, and the Middle East. The products are widely used in reactivepower compensation and harmonic control situations such as factories, petrochemicals, coal mines.metallurgy, ships, airports, solar and wind power generation. it has been operating well in multiple keyprojects in China for a long time.
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Product testing report
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