Function Features

• Current Differential Protection: It mainly functions to protect electrical systems through current differential protection. By comparing current signals at different locations, it can quickly and accurately detect faults such as short circuits and ground faults in electrical equipment or lines. When abnormal current differentials are detected, it will promptly operate to cut off the circuit and safeguard the safety of the equipment and the system.
• Multiple Protection Functions: Besides the basic current differential protection, it may also have functions like overcurrent protection, undercurrent protection, overvoltage protection, and undervoltage protection, providing comprehensive protection for electrical systems.
• Signal Processing and Diagnosis: It can precisely process and analyze the input current signals. Meanwhile, it has a fault diagnosis function that can monitor the operating status of the system in real time. When a fault occurs, it can provide detailed fault information to help technicians quickly locate and troubleshoot.
• Communication Function: It supports multiple communication protocols such as Modbus, Canbus, and Ethernet, facilitating communication and data interaction with other devices or systems. It can upload protection status, fault information, etc. to the monitoring system, enabling remote monitoring and management.

Application Areas

• Power System: In power plants, substations and other power systems, it can be used to protect important equipment such as generators, transformers and transmission lines, ensuring the stable operation of the power system.
• Industrial Automation: In the industrial production field, it is suitable for the protection of various electrical equipment such as motors, frequency converters and distribution cabinets, guaranteeing the safe and reliable operation of industrial automation production lines.
• Petrochemical Industry: In the electrical systems of the petrochemical industry, it is used to protect various pumps, compressors, fans and other equipment, preventing safety accidents caused by electrical failures.
• Transportation: In the transportation fields of rail transit and ships, it can protect their power drive systems and power supply systems, ensuring the normal operation of transportation equipment.

Technical Parameters

• Rated Voltage: Usually supports multiple voltage levels, commonly including 24V DC, 48V DC, 110V DC, 220V DC, etc. Some models also support AC voltage input.
• Rated Current: The input current range is generally 0 – 5A or 0 – 1A, which can be selected according to different application scenarios and requirements.
• Differential Protection Setting Value: It can be adjusted within a certain range. Generally, the minimum setting value can reach 0.1A, and the maximum setting value can reach several amperes to meet the protection needs of different equipment and lines.
• Action Time: It belongs to the fast-action type, generally ranging from a few milliseconds to tens of milliseconds. It can quickly cut off the circuit after a fault occurs, protecting the safety of equipment and systems.

Product Advantages

• High-Precision Detection: It adopts advanced microprocessor technology and high-precision current sensors, which can accurately measure and compare current signals. It can promptly detect even slight changes in current differentials, ensuring the accuracy and reliability of protection actions.
• Flexible Configuration: It has a variety of protection functions and configurable parameter options. Users can adjust protection parameters such as differential protection thresholds, action times, and overcurrent protection values through software or hardware settings according to specific application requirements, meeting the protection requirements of different electrical systems.
• Reliability Design: In the hardware design, redundant power supplies, anti-interference circuits and other measures are adopted, enabling it to work stably in complex electromagnetic environments and harsh industrial conditions. Meanwhile, it has a self-diagnosis function that can monitor its own working status in real time and send out alarms in case of faults, improving the overall reliability of the system.
• Powerful Communication Function: It supports multiple communication protocols such as Modbus, Canbus and Ethernet, facilitating communication and data interaction with other devices or systems. It can upload protection status, fault information, etc. to the monitoring system to achieve remote monitoring and management, enabling staff to promptly understand the system operation status and conduct fault troubleshooting and maintenance.