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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
BY-350 Series High Quality Intelligent Controller for Switchgear Equipped with an LCD Display
Model Meaning
Main Parameters of BY-350 Intelligent Controller for Switchgear
| Model | BY-350 | |
| Display method | / | |
| Working voltage | AC/DC:80V~270V | |
| Operation temperature limit | -5℃~+50℃ | |
| Working temperaturelimit | -10℃~+55℃ | |
| Relative humidity | Not evceed 93% | |
| Maximum power consumption | Not evceed 6W | |
| Overall dimensions (L x W x H) | 200×139×32mm | |
| Net weight | 0.5kg | |
| Temperature parameters | Range | -20℃~+100℃ |
| Accuracy | 1℃ | |
| Low temperature heating start temperature | 5℃ | |
| Temperature rise heating exit temperature | 13℃ | |
| High temperature exhaust starting temperature | 40℃ | |
| Exit exhaust temperature when temperature drops | 25℃ | |
| Response time | Not evceed10s | |
| Humidity parameters | Range | 1%~99%RH |
| Accuracy | 3%RH | |
| Excessive humidity during heating start-up | 85% | |
| Excessive humidity drops and heating exits humidity | 75% | |
| Response time | ≤10s | |
| Response time | ≤10s |
Product Introduction of BY - 350 Intelligent Switchgear Controller
Enhance the reliability and efficiency of your power distribution system with the BY-350 Series Intelligent Controller, a cutting-edge solution designed for seamless integration into Main Electrical Switchgear, 11kV GIS Switchgear, High Voltage Power networks, and more. Engineered by Baoyu Holdings Ltd., a global leader in smart power quality management and circuit protection, this advanced intelligent switchgear manipulator delivers precision control, real-time monitoring, and robust electrical switchgear and protection for industrial, commercial, and utility applications.
Equipped with a user-friendly LCD display, the BY-350 Series provides comprehensive oversight of circuit parameters, including current, voltage, harmonic distortions, and phase imbalances. Its multifunctional control capabilities enable dynamic adjustments to stabilize power quality, mitigate harmonic interference, and resolve three-phase imbalances. Ideal for GIS Gas Insulated Switchgear, 11kV Switchgear, and Dynamic Switchgear systems, it supports reactive power compensation and safeguards critical infrastructure against voltage fluctuations. Whether upgrading remanufactured switchgear, retrofitting used electrical switchgear for sale, or reinforcing emergency switchgear setups, this controller ensures compliance with BIL Switchgear standards and seamless interoperability with brands like Chint Switchgear, Cooper VFI Switchgear, and Siemens DC Switchgear.
The BY-350 Series is tailored for diverse environments, from domestic switchgear networks to central switchgear hubs and high-voltage power substations. Its modular design accommodates Control and Switchgear configurations, including Control Gear and Switchgear assemblies, BMC Switchgear, and Bill Switchgear systems. Trusted by used switchgear suppliers and electrical switchgear limited operators, it revitalizes aging infrastructure, extending the lifespan of 11kV GIS Switchgear and GIS Gas Insulated Switchgear while reducing downtime.Key Features:
• Real-time diagnostics via high-resolution LCD for power distribution system health monitoring.
• Adaptive algorithms for harmonic mitigation, three-phase balancing, and reactive power compensation.
• Compatibility with Chint Switchgear, BIL Switchgear, Cooper VFI Switchgear, and Siemens DC Switchgear.
• Rugged construction for high-voltage power environments (up to 11kV) and GIS gas insulated switchgear applications.
• Plug-and-play integration with remanufactured switchgear and used electrical switchgear for sale.
As a cornerstone of modern electrical switchgear and protection, the BY-350 Series empowers operators to optimize energy efficiency, reduce operational costs, and prevent circuit failures. Its dynamic switchgear adaptability makes it indispensable for emergency switchgear scenarios, central switchgear hubs, and domestic switchgear upgrades. Whether deployed in control switchgear panels, BMC Switchgear setups, or high-voltage power grids, it delivers unmatched precision and durability.Upgrade your control and switchgear infrastructure with the BY-350 Series—a future-proof solution trusted by global used switchgear suppliers and power utilities to enhance power quality, protect circuits, and ensure uninterrupted operations. Contact Baoyu Holdings Ltd. today to transform your power distribution system with intelligent innovation.
Main Advantages of BY - 350 Intelligent Switchgear Controller
1.Intelligent switchgear integration
Seamless integration with intelligent switchgear control systems enables real-time monitoring and automatic adjustment of circuit current, voltage parameters and power quality, thereby optimizing power distribution.
2. Multifunctional intelligent control
Combine circuit protection, harmonic mitigation and three-phase unbalance correction into a single high-voltage panel control, reducing downtime and improving grid stability.
3. Advanced LCD interface for real-time diagnosis
Features a high-resolution LCD display that instantly displays switchgear operating data, including load current, voltage fluctuations, and fault alarms, ensuring proactive maintenance.
4. Adaptive protection of power circuit
Protect equipment from overloads, short circuits, and voltage surges using AI-driven algorithms that dynamically adjust circuit breaker settings and reactive power compensation.
5. Universal compatibility with switchgear systems
Designed for seamless integration into medium and high voltage switchgear, it supports both traditional and modern intelligent circuit protection architectures.
6. Energy efficiency optimization
Enhance power factor correction and reduce energy waste through precise control of current harmonics and unbalanced loads, meeting global energy conservation standards.
7. Sturdy industrial design
Designed to withstand extreme temperatures and electromagnetic interference (EMI), they ensure reliable performance in harsh environments for high-voltage circuit control applications.
Working Principle of BY - 350 Intelligent Switchgear Controller
BY-350 series high-quality switchgear intelligent controller is an advanced solution designed to optimize the performance and safety of switchgear systems in high-voltage and industrial power distribution networks. Equipped with advanced LCD display and embedded intelligent control algorithm, this intelligent operation device can be seamlessly integrated with switchgear control system, high-voltage cabinet control device and circuit protection device to achieve real-time monitoring and precise control.
The BY-350 is a multifunctional control unit that continuously analyzes key parameters such as current, voltage and circuit status through its intelligent switching technology. It uses adaptive algorithms to dynamically adjust reactive power compensation, mitigate harmonic distortion and correct three-phase imbalance to ensure optimal power quality and circuit protection. The controller's intelligent switching operation module enables automatic fault detection and isolation of abnormal conditions such as overcurrent, short circuit or voltage surge to protect equipment and prevent downtime.
BY-350 is compatible with intelligent switchgear operating systems and supports remote configuration and diagnostics through its user-friendly interface, providing operators with actionable insights into circuit health and energy efficiency. Its rugged design ensures reliable operation even in harsh environments, making it ideal for high-voltage panel control applications, industrial plants, and smart grid infrastructure.
Size of BY-350 Intelligent Controller for Switchgear
Product Wiring Diagram
When conducting a high voltage test greater than twicethe nominal voltage,it is necessary to first short circuit thesecondary wire of the high voltage live sensor to the groundAfter the hiah voltage test is completed, the secondary wireand ground wire of the high voltage live sensor can beconnected to the corresponding wiring terminals to preventabnormal hiah voltage damage to the device
Applications of Series High Quality Intelligent Controller for Switchgear
Industrial power distribution system
The BY-350 Series excels in industrial facilities that require powerful intelligent switchgear control to manage high-voltage circuits and ensure uninterrupted operations. This versatile control device integrates with the high-voltage cabinet control system to monitor current and voltage parameters of critical machinery, transformers, and production lines in real time. Its intelligent switching technology automatically detects abnormal conditions such as harmonic distortion or phase imbalance and triggers reactive power compensation to stabilize grid performance. For example, in manufacturing plants with heavy motor loads, the BY-350's circuit protection algorithms mitigate voltage sags and surges, protecting sensitive equipment from damage. The LCD display provides operators with instant diagnostic information, allowing them to quickly adjust switchgear control mechanisms during load fluctuations. By coordinating intelligent circuit management with energy efficiency protocols, the controller reduces downtime, optimizes power consumption, and extends the life of industrial electrical infrastructure.In addition, BY-350 supports remote control of switchgear control systems, allowing engineers to reconfigure protection settings or isolate faulty circuits through a centralized SCADA platform. Its compatibility with high-voltage cabinet control equipment ensures seamless integration with existing systems, making it an indispensable tool for steel mills, chemical plants, and mining operations that require extremely high reliability and accuracy.
Smart grid and substation
In utility-scale power grids, the BY-350 series is the cornerstone of smart grid management, enhancing the stability of high-voltage switchgear control applications. Designed for substations and transmission networks, this intelligent control device dynamically balances loads, corrects three-phase imbalance, and suppresses harmonic interference caused by renewable energy grid connection or non-linear loads. It uses multifunctional control capabilities to regulate current and voltage levels on feeders, prevent overloads, and minimize transmission losses.The controller's adaptive algorithm coordinates with the switchgear control system in real time to ensure rapid fault isolation during grid disturbances. For example, in solar or wind farm connections, the BY-350 mitigates voltage flicker and harmonic resonance to ensure compliance with grid regulations. Its intelligent switch module also automates capacitor bank operation and optimizes reactive power compensation, thereby improving power factor and reducing fines for power companies.Engineers rely on the BY-350’s LCD interface to visualize circuit health indicators such as THD (Total Harmonic Distortion) and load asymmetry, streamlining maintenance workflows. With powerful communication protocols (e.g., Modbus, IEC 61850), it can be integrated into smart grid control architectures, enabling predictive analytics and remote firmware updates. This makes the BY-350 a critical tool for modernizing aging infrastructure into a resilient, IoT-enabled grid.
Commercial Building and Data Center Power Management
The BY-350 series is designed for mission-critical environments such as data centers and high-rise buildings, where intelligent circuit protection and precise power quality are essential. As a multifunctional control unit, it monitors the switchgear control system in medium-voltage switchboards to ensure seamless switching between grid power and backup generators. Its intelligent switching logic detects voltage sags or frequency deviations in microseconds and activates the UPS system to prevent IT equipment downtime.In data centers, the controller’s harmonic mitigation capabilities protect the integrity of sensitive electronic equipment by eliminating distortion generated by server farms and HVAC systems. The LCD display provides detailed insights into current harmonics, phase angles, and energy consumption patterns, enabling facility managers to fine-tune circuit protection settings for peak efficiency. Additionally, the BY-350’s reactive power compensation module dynamically adjusts capacitor banks, reducing demand charges and improving the return on investment for energy storage systems.For commercial complexes with complex load profiles, BY-350’s high voltage panel control integration ensures compliance with IEEE and IEC standards. Its remote control function enables technicians to troubleshoot switchgear control equipment without physical contact, minimizing risks in high occupancy environments. The BY-350 series combines intelligent power management with user-centric design to redefine the reliability of modern smart buildings.
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Production workshop
Workshop Vedio
Baoyu Holdings Limited
Baoyu Holding Co., Ltd. was founded in 2015 and is located in Wenzhou City, Zhejiang Province. The location is excellent and the transportation is convenient. We have very rich industry experience and is a trusted 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 power compensators, composite switches, capacitor contactors, thyristor switches, reactors. Our company knows that the development of the company depends on the innovation and quality of the products. Therefore, our products have strict quality control from the procurement of raw materials to the sale of finished products. The company has established a quality management system that meets the requirements of the international quality management system. The company continuously releases the original innovations according to the market and customer needs, and always maintains the novelty and innovation of the products. The company wants the customer's thoughts and urgency. Solving problems for customers and meeting customer needs is our eternal pursuit! Our company's products are sold worldwide. The company has won the unanimous recognition of consumers with satisfactory product quality and perfect after-sales service. We have a professional R & D team. We can accept O E M and O D M.We sincerely welcome friends from all over the world to visit our company and cooperate with us on the basis of long-term mutual benefits. We are looking forward to receiving your enquiry soon.
Our storage facility utilizes precision climate control, automated 3D warehousing (which increases capacity by 200%), and integrated safety systems (including fire suppression, anti-static protocols, and monthly audits) to maintain zero oxidation and ensure product integrity. In addition, our cleanroom manufacturing facility features a combination of natural and LED lighting, optimized workflows, and cross-trained technicians to enhance efficiency. Automated quality control systems and ISO-certified processes ensure compliance with dimensional and electrical standards, while AI-driven analytics and stringent protocols help achieve near-zero defects. By integrating advanced automation, tailored solutions, and steadfast reliability, Baoyu provides durable, mission-critical power systems, reinforcing our status as the preferred global partner for industries that require precision and innovation.
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