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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
BYCW1 Series Intelligent Universal Circuit Breaker Low Voltage 660V
Brief Introduction to BYCW1 Universal Circuit Breaker
The BY Series intelligent Universal Circuit Breaker is suitable for distribution networks with an alternating current frequency of 50Hz, a rated voltage of up to 660V (690V), and a rated current of 630A to 6300A. lt is used to distribute electrical energy and protect circuits and power equipment from hazards caused by overload undervoltage, short circuits, single-phase grounding, and other faults.The circuit breaker features intelligent protection functions, providing selective and precise protection, which improves power supply reliability and prevents unnecessary power outages. it is also equipped with an open communication interface that supports remote control, monitoring, and diagnostics (referred to as "four remote functions" to meet the real requirement of control centers and automation systems. The circuit breaker has an impulse withstand voltage of 8000V at an altitude of 2000 meters (adjusted according to the standard for diferent altitudes.with a maximum of 12000V). The circuit breaker without an intelligent controller and sensor can be used as an isolator. The circuit breaker complies with the standards GB/T14048.2 "Low-voltage Switchgear and Controlgear Low-voltage Circuit .
Product-related Technical Parameters
| Model | BYCW1 Universal Circuit Breaker |
| Place of Origin | Zhejiang, China |
| Brand Name | CNBYG |
| Application | Power distribution protection and motor protection |
| Working Current | 630A~6300A |
| Rated Frequency (Hz) | 50Hz |
| Mechanical Life | 12500Times |
| Electric Life | 2500Times |
| Installation Method | Drawer style |
| rated Insulation Voltage | 660V |
| Quality | Insulating Material and Metal Parts |
Product Features of BYCW1 Series Universal Circuit Breaker
The BYCW1 series is an intelligent universal circuit breaker designed for industrial and commercial power distribution systems. It operates at a rated voltage of 660V AC (50/60Hz) and offers advanced protection and monitoring capabilities. Key features include:
Intelligent Protection: Equipped with a microprocessor-based trip unit for precise detection of faults such as short-circuit, overload, undervoltage, and single-phase grounding1.
Selective Coordination: Ensures selective tripping to minimize downtime and enhance power supply reliability by isolating only the faulted section1.
Communication Capabilities: Supports remote monitoring and control via integrated communication interfaces (e.g., Modbus, RS485), enabling integration with smart grid systems.
High Breaking Capacity: Suitable for demanding applications with a breaking capacity up to 100kA, ensuring robust protection against severe electrical faults.
Compliance Standards: Meets GB/T14048.2GB/T 14048.2 "Low-voltage switchgear and controlgear . Circuit-breakers" and IEC 60947 "Low-voltage switchgear and controlgear - Circuit-breakers" and other standards. and other international certifications, guaranteeing safety and interoperability in global markets.
Wiring Method of BYCW1 Universal Circuit Breaker
1)The controller's sianal outout is driven by terminals 12-18. 20, and 21, which activate the external relay u to provideoutput contact action signals.
2)The RS485/232 converter, DP module, and current transformer (input voltage values must be specified) areprovided by the manufacturer. The power transformer can be inserted into the standard rail together with the relaybase, and the user is responsible for installing it in a suitable location within the switchgear.
3)The relay model is HH62P, AC/DC 24V, to be provided by the user.
4)The main station computer is to be provided by the user.
5)Terminals 13-15 output signals for communication remote control of tripping, closing, and energy storage. At thistime, the trip signals from terminals14 and 15 will no longer be output. The normally open contacts of thecorresponding relays are connected in parallel with the buttons used for active control to enable remote control. remote control is not required, terminals 14 and 15 can be connected in series with the normally open contacts ofrelavs j14 and j15 to two sianalamos for remote sianal output, Please specifv in the order whether remote controfunctionality is needed. The manufacturer wil determine the corresponding functions of terminals 14 and 15 based onthis,Terminal21 outputs can drive relay J21 for backup protection.
6)The self-diagnostic signal output conditions are as follows:a.Internaltemperature of the controller>80° C;b. The chip is not functioning properly;
c.The controllerloses power.
7)Users can selectJ12,J14-16, J20, and J21 according to their actual needs.
Installation dimensions
Details determine quality
At the heart of the circuit breaker is the contact system, which is responsible for efficiently interrupting current in situations of circuit overload or short circuit in order to protect electrical equipment and personnel. The design of the contact system must be able to withstand the rated capacity of the current and should exercise quick action whenever there is an overload condition. If it does not do so, the contact may go into an overheating or damaged state. Materials and structure of the contact point must be such that the contacts have good conductivity and wear resistance to minimize contact resistance and extend life cycles. Besides, the mechanical structures and control circuit of the circuit breaker must synchronize well for the reliable disconnection during faults to minimize electrical fires and equipment damage, ensuring protection to the entire power system.
The arc-extinguishing chamber is another important part of the circuit breaker. Its primary purpose is to extinguish the arc and safely interrupt the circuit. Upon interruption of the current, an arc would form between the contact points. By means of isolating and insulating each of the electrodes, the arc-extinguishing chamber prevents the expansion and regeneration of the arc. The arc-extinguishing chamber, through the use of specially designed materials, can quickly cool the arc and disperse the heat generated by it, thus limiting the extent of damage that arc would cause to the equipment. Good insulation performance is also provided to prevent the occurrence of leakage current thereby ensuring the safety of the operators. By good optimization of the structure and materials of the arc-extinguishing chamber, the operation performance and reliability of circuit breakers are hence improved to ensure safe operations in all kinds of work conditions.
Highly conductive materials are crucial in any form of electric equipment, mainly for the purposes of electric shock prevention and enhancement of overall power system stability. These materials provide low resistance when a current flows through, hence reducing the electromagnetic repulsion effects from the corresponding electric current. Such electromagnetic repulsion when high current stress may cause some instability in the equipment and subsequent failure, whereas good application of conductive materials results in high conductivity with reduced current loss.Hence the better conductivity allows the majority of the Fault current or Short circuit current, to be diverted to a safe path rapidly reducing the risk of electric shock. By optimizing the electrical connections using highly conductive materials, the stability of the power system can be increased, giving assurance to the safe and reliable functioning of the equipment under high-load conditions. This not only enhances the operational performance of the equipment but also ensures a safe working environment for operators.
Usage scenarios
Electric power system industrial production construction industry
Storage Workshop
Production workshop
Workshop Vedio
Who we are: Baoyu Holding Co., Ltd.
The company has been engaged in manufacturing intelligent power equipment for many decades, earning the title of an industry leader. BaoYu Holding specializes in the research, development, and manufacturing of cylindrical power capacitors, active power filters (APF), reactors, and reactive power compensation systems. Its products find application in industrial manufacturing, renewable energy generation, data centers, and rail transportation. Drawing on technological advancement, the company provides efficient and reliable power optimization solutions to over 40 countries and regions across the world. Through the application of smart production facilities and digital warehousing systems, BaoYu has gained entry into European, North American, Southeast Asian, and Middle Eastern markets.
Intelligent Production Workshops
With incorporation of automation, digitalization, and sustainable concepts, BaoYu builds its production workshop around the Industrial 4.0 standard.
Automatic Production Lines.Enables the high-speed SMT machines, laser welding robots, and AI vision inspection technologies to reach a mere ±0.1mm accuracy in encapsulation and a product consistency rate of as high as 99.98%.
Rigorous Quality Verification
• 72-hour aging test: A test that simulates temperature extremes -40°C to +85°C environments for detection of early failures and has achieved an MTBF of over 100,000 hours.
• Whole Parameters Detection: All values of capacitance, equivalent series resistance (ESR), and leakage current are monitored online to conclude whether the capacitor meets the request from IEC standards.Zero-carbon Factory practice
Intelligent Warehousing Workshop
- Efficient Storage and Zero-loss Management:The BaoYu warehouse is highly intelligent and proves valuable not to all raw materials during production activities but also throughout the entire cycle up to delivery:
- Constant Temperature and Humidity Environment:The temperature is controlled within ±1°C (15 - 25°C), and the humidity is maintained at 40% - 60% to prevent the drying of the electrolyte in capacitors and metal oxidation.
- Anti-static Measures:Using both anti-static epoxy floor and ion air curtains to dampen the adsorption of dust and damage due to electrostatic accumulation.
- Automated Stereoscopic Warehousing:The storage capacity of 3D high-density shelves shall increase by 200%, supporting the management of millions of capacitor units.
- RFID Electronic Labels:Batch traceability is made possible, and order picking efficiency is improved by 55%. Globally delivered in less than 48 hours.
- Safety Redundancy Design:Heptafluoropropane fire suppression system**: A deposit-free gas fire extinguishing system to fire accidents, creating second-level response via sensors of heat and smoke. Inspection Mechanism Monthly: A sampling team tests capacitance attenuation rates by sampling from a factory: ≤ ±3% ensuring that factory pass rates are ≥99.9%.
Core Advantages and Industry Benchmarks
Technology Leader
• Series superposition of capillary lengths making the cylindrical type capacitors fit for high-power frequency converters and energy storage applications.
• The APF series offers dynamic harmonic filtering from the 2nd to the 50th order (THDi < 3%) and compatible with photovoltaic inverters and electric vehicle chargers.
Successful Cases
• Provided a capacitor compensation solution for a car factory in Europe and saved more than 2 million euros in annual electricity cost.
• Assisted a 5 GW photovoltaic power station in the Middle East by enabling harmonic governance to improve grid connection efficiency by 18%.
Our Mission and Vision
"Intelligently creating electric energy, greenly driving the future" is the vision of BaoYu. It aims to lead high-efficiency, low-carbon change for power systems, cost-effective and risk-free power quality solutions for global industrial and energy customers, and continue to lead the core strength of "Made in China" in energy transformation globally.
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
