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Power Capacitors
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- BY82J Series Anti-harmonic Intelligent Capacitor
- BY89 Series Intelligent Capacitor
- Intelligent Controller Series
- Reactor
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- Alternating Current Contactor
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BY194l-A*4 Series Digital Panel Three Phase Ammeter 3 Phase Digital LED AC Panel Mount Ammeter Digital
Model Meaning

Main Technical Data of BY194l-A*4 Three Phase Ammeter
| Operation 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 Environment | Safely store the unit in temperatures ranging from -20°C to 75°C, ensuring longevity |
| Insulation Situation | Superior insulation greater than 5MΩ ensures safety and reliability |

Structures of BY194l-A*4 Three Phase Ammeter
The structure of the three-phase electric meter is complex and precise, and it mainly consists of the following parts:
Current transformer: responsible for collecting the current signals of each phase and converting them into standard signals and inputting them into the circuit.
Voltage transformer: measures the voltage difference between phases and provides basic data for power calculation.
Metering chip: equipped with metering function module, responsible for data processing, power calculation, power integration, etc.
Display screen: Displays current power consumption, power information and other related data.
Communication interface: supports remote meter reading and data transmission, facilitating energy management and monitoring.
Anti-tampering device: protects the security of meter data and prevents unauthorized tampering or forgery.

Applications of BY194l-A*4 Three Phase Ammeter
Industrial field: Industrial production usually requires a lot of electricity. Three-phase meters can be used to monitor and measure the power consumption of factories, workshops and other equipment, helping enterprises manage and control energy costs. By real-time monitoring of power consumption, enterprises can optimize production plans, reasonably adjust equipment operation conditions, achieve energy conservation and consumption reduction, and improve production efficiency.
Commercial buildings: Commercial complexes, shopping malls and other places have strict requirements on electricity consumption supervision. Three-phase electricity meters can be used for sub-metering in commercial buildings and electricity bill settlement for leased shops. Through data analysis and monitoring functions, commercial building managers can understand the electricity consumption in each area and adjust electricity consumption strategies according to actual needs to improve operational efficiency.
Residential buildings: Residential areas, apartment buildings, etc. need to measure and manage the electricity consumption of residents. Prepaid three-phase meters and other meters are more suitable for such places. Through the application of smart meters, residents can monitor the household electricity consumption in real time, use electricity reasonably, save energy, and also facilitate the management and maintenance of household electrical equipment.
Data Center: Data centers have extremely high requirements for the stable supply and efficient use of electricity. Three-phase electricity meters play a vital role in data centers. By monitoring the power consumption of various equipment in the data center, managers can promptly discover and solve potential energy waste problems and ensure the normal operation of the data center.
New energy field: In new energy systems such as solar energy and wind energy, three-phase electricity meters are used to monitor, measure and connect the electricity generated by new energy power generation equipment to the grid. Through data collection and analysis of three-phase electricity meters, effective connection between new energy power generation equipment and power grid systems can be achieved, promoting the sustainable development of clean energy.

Product Wiring Method

Product Size Informations

| Model | A1 | A2 | Hole opening size |
| BY194l-D*4 Three Phase Ammeter | 72mm | 72mm | 67×67mm |
Baoyu Manufacturing is Trustworthy

High-precision multi-parameter measurement with advanced harmonic analysis
The BY194L-A*4 series can monitor three-phase current, voltage, active power, reactive power, power factor, and frequency in real time with an accuracy of 0.5%. Its harmonic analysis capability (up to 51st harmonic) can detect and quantify the distortion caused by non-linear loads such as inverters and UPS systems, making it an ideal choice for industries that require harmonic control and three-phase unbalance solutions. The device can also calculate THD (total harmonic distortion) and provide phase-specific data, allowing engineers to pinpoint problems in complex power grids. By integrating with reactive power compensation schemes (reactive power compensation systems), it can optimize energy efficiency and reduce penalties caused by low power factor.

Intelligent communication and remote monitoring integrated with the Industrial Internet of Things
BY194L-A*4 is equipped with RS485 MODBUS-RTU and MODBUS TCP protocols, which can be seamlessly connected to SCADA systems, PLCs and cloud platforms for remote monitoring and centralized data management. Users can configure alarms for overcurrent, undervoltage or power factor thresholds, triggering real-time alarms.The device supports data logging (up to 10,000 records) and stores historical trends, simplifying compliance reporting and predictive maintenance. Its wide temperature design (-25°C to 55°C) ensures stable operation in harsh environments, while the IP65-rated housing prevents dust and water intrusion.

Flexible installation and customizable user interface
BY194L-A4 features a compact panel mount design with multiple form factors fit standard switchgear and control panels. Its bright LED display ensures high visibility in low light conditions, while the intuitive menu system allows on-site parameter adjustment without programming. The device supports CT/PT ratio configuration and auto-scaling without the need for external converters. For advanced users, the LCD version (BY194L-A4Y) provides graphical waveform analysis and harmonic spectrum for more efficient troubleshooting.
Storage Workshop

Production workshop

Workshop Vedio
Baoyu Holdings Co., Ltd.
Baoyu Holdings Limited is a leading global provider of advanced power quality solutions, focusing on intelligent full-control energy management and intelligent circuit protection systems. Since our founding, we have been committed to providing innovative products to solve harmonic distortion, three-phase imbalance, reactive power problems and circuit instability. Our customized solutions optimize grid efficiency, reduce energy losses and improve system reliability in global industries. With ISO 9001 certification and the support of a team of experts, we combine cutting-edge technology with strict quality control to meet a variety of customer needs. Trust Baoyu to protect your power infrastructure, improve power quality and drive sustainable performance. Partner with us for smarter and safer energy solutions.
Power quality solutions:
- Harmonic Filters: Eliminate harmonic distortion caused by non-linear loads (e.g. variable frequency drives, UPS systems).
Three-phase unbalance corrector: Balances loads to prevent equipment damage and improve energy efficiency.
Reactive power compensator: optimize power factor, reduce electricity costs and enhance grid stability.
Circuit Protection Products:
- Smart circuit breakers: Provide real-time monitoring and fault detection to protect critical systems.
Surge protection device (SPD): Protects equipment from voltage spikes and lightning strikes.
Technical advantages
- AI-driven technology: Our products integrate machine learning algorithms for predictive maintenance and adaptive power management.
Real-time monitoring: Advanced sensors and cloud-based platforms enable remote diagnostics and instant alerts for proactive problem resolution.
Patented Innovation: Proprietary designs such as hybrid active filter and dynamic voltage regulator ensure superior performance.
Manufacturing Excellence
- Automated Production: State-of-the-art facilities equipped with robotic assembly lines guarantee precision and scalability.
Strict Quality Control: ISO 9001 certified processes and rigorous testing protocols ensure compliance with international standards.
Global Compliance: Our products comply with international certifications, ensuring seamless integration into global markets.
Trusted by manufacturers, data centers, renewable energy plants and commercial complexes, our solutions are optimized for industrial power systems, energy efficiency and smart grid infrastructure.With a focus on innovation, reliability and customer-centric services, we help businesses achieve cost-effective energy management and resilient power operations. Explore our solutions today and experience the future of power quality.
Business license

High-tech enterprise certificate
ISO management system certification



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Product testing report

Company patent certificate

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