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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
BY194E-3SY | High-Resolution LCD Multifunctional Power Meter - Comprehensive Electrical Measurement
Specification of BY194E-3SY Multifunctional Energy Analyzer Meter
| Model | BY194E-3SY Multifunctional Energy Analyzer Meter |
| Power Supply | Ensure a steady and reliable AC220V±10% power supply at 50/60Hz, allowing for consistent performance |
| Power Consumption | Remarkably efficient with power consumption of less than 1.5W, offering enhanced energy savings |
| Measurement Accuracy | Enjoy precision with a stunning RMS measurement accuracy of 0.5% grade |
| Operation Environment | Dependably operates within a temperature range of -10°C to 50°C, suitable for diverse environments |
| Storage | Safely store the unit in temperatures ranging from -20°C to 75°C, ensuring longevity |
| Insulation | Superior insulation greater than 5MΩ ensures safety and reliability |
Product Introduction of BY194E-3SY Multifunctional Energy Analyzer Meter
The BY194E-3SY multifunctional power instrument redefines electrical power quality monitoring for low-voltage electrical systems, serving as a comprehensive power quality measurement system. Equipped with multi-phase synchronization measurement, this three-phase power quality analyzer captures real-time data on 3-phase power parameters, including voltage, current, electric power energy, and harmonic distortions (up to 63rd order). Its wide-frequency power quality monitoring detects harmonics, interharmonics, voltage flickers, and sags, enabling precise dynamic reactive power compensation control to stabilize grids and reduce electricity load inefficiencies. Designed for three-phase electric networks, the device employs adaptive three-phase imbalance correction to neutralize voltage fluctuations caused by unbalanced industrial machinery or renewable energy sources. As a power quality and energy analyzer, it supports low-power electricity and low-current electricity tracking, making it ideal for microgrids, smart buildings, and Power Electric Corporation-scale infrastructure. The high-resolution LCD display provides instant insights into power quality data, including THD, unbalance rates, and transient events, while complying with introduction of power quality standards .
Engineered for seamless integration into modern energy ecosystems, the BY194E-3SY combines multi-protocol communication (Modbus, BACnet, RS485) with edge computing capabilities, enabling remote monitoring and predictive maintenance for The Electric Power industry. Its anti-interference design ensures accurate operation in electromagnetically noisy environments, such as manufacturing plants or solar farms, where electrical power quality is critical. The portable power quality meter architecture allows flexible deployment across Power Electric Co facilities, while rugged construction (IP65-rated) withstands extreme temperatures, humidity, and vibrations. For three-phase electric systems, the device’s adaptive correction algorithms optimize 3-phase electric stability, minimizing downtime in data centers, EV charging stations, and wind farms. As a power quality meter, it generates actionable power quality data reports, aiding utilities and Power Electric operators in compliance audits and energy cost reduction. Compatible with IoT platforms, it bridges gap between legacy grids and smart energy management, delivering scalable solutions for electric power energy optimization across industries.

Main Features BY194E-3SY Multifunctional Energy Analyzer Meter
1.Multifunctional power meter
Integrated multi-phase synchronous measurement, real-time measurement of three-phase power parameters (voltage, current, frequency) and power quality analysis.
2. Harmonic and interharmonic analysis
Detects harmonics up to 63rd/interharmonics in low voltage electrical systems to resolve power quality issues such as voltage distortion and resonance.
3. Dynamic reactive power compensation
Automated dynamic reactive power compensation control to optimize power load efficiency and reduce grid penalties for utilities.
4. Broadband power quality monitoring
Monitors power quality in the 16Hz–2.5kHz range on three-phase grids, capturing transients and voltage sags with ±0.2% accuracy.
5. Multi-protocol and edge computing
Supports multi-protocol communications (Modbus, BACnet) and edge computing for power quality data analysis in Power Electric Co facilities.
6. Adaptive three-phase correction
Stabilize three-phase grids with unbalanced renewable energy loads by self-adjusting phase currents through adaptive unbalance correction.
7. Anti-interference design
Features EMI shielding and surge protection for reliable low-current power tracking in noisy industrial environments (IP65 rated).

Working Principle of BY194E-3SY Multi-function Electric Energy Analyzer
Comprehensive power quality analysis
The meter uses THD (total harmonic distortion) and interharmonic analysis technology to monitor harmonic components up to the 31st order, ensuring accurate detection of voltage/current distortions that can degrade equipment performance. By identifying sources of harmonic pollution, it supports active harmonic mitigation strategies, which is critical for compliance international standards. In addition, its imbalance monitoring function dynamically tracks phase imbalance and triggers an adaptive correction algorithm to stabilize the three-phase system, reduce neutral line overload, and improve grid reliability.
Dynamic reactive power compensation control
BY194E-3SY integrates dynamic reactive power compensation logic to optimize power factor in real time by adjusting capacitor banks or SVG/SVC systems. This minimizes transmission losses, avoids power company fines, and improves energy efficiency. The device calculates reactive power demand based on load fluctuations, ensuring fast response to transient conditions such as motor starting or intermittent faults in solar inverters.
Advanced anti-interference design
Designed for harsh industrial environments, the meter uses EMC-compliant shielding and galvanic isolation technology to protect against electromagnetic interference (EMI) and voltage surges. Its wide power supply range (AC/DC 85–270V) and reinforced insulation design enable stable operation even during grid anomalies, making it an ideal choice for manufacturing, renewable energy, and smart building applications.
Multifunctional energy metering
In addition to basic measurement functions, the device also supports bidirectional energy metering (import/export), demand monitoring, and peak and valley price recording. With active energy accuracy of 0.5 and reactive energy accuracy of 1.0, it is a cost-effective alternative to traditional sensors and independent metering devices.
Adaptive communications and customization
BY194E-3SY provides programmable I/O modules (digital input, relay output, analog output) for custom automation tasks, such as triggering overvoltage or undervoltage event alarms. Users can configure CT/PT ratios and data refresh rates on-site to ensure compatibility with various grid architectures.

Product Wiring Method

Product Size Informations

| Model | A1 | A2 | Hole opening size |
| BY194E-3SY Multi-function Electric Energy Analyzer | 72mm | 72mm | 67×67mm |
Applications of BY194E-3SY Three-Phase Power Quality Analyzer

Industrial Manufacturing Facilities
The BY194E-3SY three-phase power quality analyzer is essential for maintaining power quality in heavy industries that use low-voltage electrical systems. Its multi-phase synchronous measurement function detects harmonics and interharmonics in frequency converters, welding robots, and CNC machine tools to prevent motor burnout and production downtime. This power quality measurement system supports dynamic reactive power compensation control to balance three-phase power loads, thereby reducing power load inefficiency and power company fines. With adaptive three-phase unbalance correction function, it stabilizes voltage fluctuations caused by uneven mechanical operation, while its anti-interference design ensures measurement accuracy even in environments with severe electromagnetic interference (EMI). As a portable power quality meter, it helps Power Electric Co technicians audit power consumption and generate power quality data reports to comply with power quality standards .

Smart buildings and data centers
In smart buildings and hyperscale data centers, the BY194E-3SY multifunction power meter safeguards three-phase power stability for critical IT infrastructure. Its wideband power quality monitoring identifies harmonic distortion in UPS systems and server racks, while low-power power tracking optimizes HVAC and lighting efficiency. This power quality and energy analyzer integrates multiprotocol communications (BACnet, Modbus) and edge computing to analyze power quality data in real time, enabling predictive maintenance and reducing energy costs. The three-phase analyzer’s adaptive unbalance correction resolves voltage sags caused by rapid load changes in cooling systems, ensuring 24/7 uptime. A rugged, anti-interference design ensures reliability in high-noise environments, while cloud connectivity supports remote management at the scale of Power Electric Corporations that meet LED and Energy Star certifications.

Renewable energy systems (solar/wind farms)
For solar farms and wind turbines, the BY194E-3SY power analyzer addresses grid instability caused by intermittent generation. Its three-phase power quality analyzer performs harmonic/interharmonic analysis to mitigate inverter-induced distortion, ensuring compliance with grid codes such as IEEE 1547. The power quality meter’s wideband monitoring function detects subsynchronous oscillations and solar feedback anomalies in wind farms, while the dynamic reactive power compensation function stabilizes voltage during sudden cloud cover or gusty winds. The adaptive three-phase correction function addresses low-voltage electrical imbalances in the distribution network, minimizing power curtailment losses. With edge computing and multi-protocol IoT connectivity, the analyzer provides predictive maintenance for the power industry, reducing downtime. Designed for harsh outdoor conditions, its IP65-rated anti-interference design withstands extreme temperatures and electromagnetic interference, making it an ideal choice for power operators to manage three-phase power reliability in green energy projects.
Storage Workshop

Production workshop

Workshop Vedio
Baoyu Holding Co., Ltd
Baoyu Holdings Co., Ltd. was established in 2015 and is located in Wenzhou City, Zhejiang Province. It has a superior geographical location and convenient transportation. We have very rich industry experience and are a trustworthy 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 compensators, composite switches, capacitor contactors, thyristor switches, reactors, etc. Our company is well aware that the company's development depends on the innovation and quality of its products. Therefore, our products are subject to strict quality control from raw material procurement to finished product sales. The company has established a quality management system that meets the requirements of the international quality management system. According to market and customer needs, the company continuously launches original and innovative results, and always maintains the novelty and innovation of its products. The company thinks what customers think and is anxious about what customers are anxious about. Solving problems for customers and meeting customer needs is our eternal pursuit! Our company's products are sold all over the world. The company has won unanimous recognition from consumers with satisfactory product quality and perfect after-sales service. We have a professional R&D team and accept OEM and ODM (custom production). We sincerely welcome friends from all over the world to visit us and cooperate with us on the basis of long-term mutual benefits. Looking forward to your inquiries.
Our storage facilities use precision climate control, automated 3D warehousing (with a 200% capacity increase), and integrated safety systems (including fire extinguishing, anti-static procedures, and monthly audits) to maintain zero oxidation and ensure product integrity. In addition, our cleanroom manufacturing facilities use a combination of natural and LED lighting, optimize workflows, and are staffed with cross-trained technicians to improve efficiency. Automated quality control systems and ISO-certified processes ensure compliance with dimensional and electrical standards, while intelligent-driven analysis and strict procedures help achieve a near-zero defect rate. Baoyu provides durable, mission-critical power systems by integrating advanced automation technology, customized solutions, and superior reliability, consolidating our position as the industry's preferred global partner for 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


