Protection relay test equipment HZJB-I

electriccomputer-controlledindustrial

The HZJB-I Three-Phase Relay is engineered to deliver superior performance and accuracy in monitoring and safeguarding three-phase power systems. With its state-of-the-art technology and precision engineering, this relay ensures the seamless operation and protection of critical electrical equipment and machinery. Equipped with advanced microprocessor-based algorithms, the HZJB-I Three-Phase Relay offers precise and responsive protection against a range of electrical faults, including overcurrent, undercurrent, phase imbalance, and phase loss. This level of protection is essential for preventing damage to equipment and ensuring the safety and reliability of the power system. - Industrial control computer and Windows operating system are pre-installed. Avoid frequent power cycling. - USB interfaces allow hot-swapping of USB equipment (e.g., flash disks), but only after data transmission is complete. - Do not delete or alter system files or desktop icons to ensure stable operation. - When connecting external keyboard or mouse, ensure correct terminal connection. - Do not shut off power supply directly during output to avoid incorrect protection actions. - For switch quantity compatible with idle and charged contacts, connect the high terminal (anode) of contact potential with the common end +KM. - Do not insert objects into ventilation slots or input/output sockets. Ensure air slots, power switch, and plug remain unobstructed. - Do not lead external AC/DC power into the voltage and current output sockets. - For high safety or strong disturbance, ground the outlet of power source or the tester's protective earth before testing. - If interface data is wrong, delete the ‘para’ file under ‘E\Relay Protection Calibrator\’ and restart the program to restore defaults. Procedures for turning on: - Plug the tester into an AC220V outlet. If using an external computer, connect the serial communication line properly. - Check all wires and connections, then switch on the tester and any external computer. The software interface will appear for testing. Procedures for turning off: - Do not close the power switch directly. First terminate the Windows OS, then press the power button when prompted for safe shutdown. - Use the ‘QUIT’ key or the system's ‘start’ menu to safely power down. Specification AC current output - Phase current output (effective value): 0~40A, Output Precision 0.2 degree - 3 phase parallel current output (effective value): 0~120A - A Long-time Phase current: 10A - Maximum output power of Phase current: 450VA - Maximum output power of 3 parallel current: 900VA - Maximum Permitted work time of 3 parallel current: 10S - Frequency range (fundamental): 20~1000Hz - Harmonic time: 2~20 DC current output - Current output: 0~±10A / phase, 0~±30A / 3 parallel - Output Precision: 0.5 degree AC voltage output - Phase voltage output (effective value): 0~120V Output Precision 0.2 degree - Line voltage output (effective value): 0~240V - Phase voltage / Line phase output power: 80VA / 100VA - Frequency range (fundamental): 20~1000Hz - Harmonic time: 1~20 DC voltage output - Phase voltage output range: 0~±160V Output Precision 0.5 degree - Line voltage output range: 0~±320V - Phase voltage / Line phase output power: 70VA / 140VA 10 path digital input and 8 path digital output - Time measuring range: 0.1ms ~ 9999s, accuracy of measurement <0.1ms Overall, the HZJB-I Three-Phase Relay sets a new standard for protection and control in three-phase power systems, offering unmatched performance, reliability, and flexibility. Whether used in manufacturing facilities, power plants, or commercial buildings, this advanced relay is the ideal choice for ensuring the safe and efficient operation of critical electrical systems. - Advanced microprocessor-based algorithms - Protection against overcurrent, undercurrent, phase imbalance, and phase loss - AC and DC current/voltage outputs with high precision - Multiple digital inputs and outputs - Wide frequency range and harmonic capability - Industrial control computer with Windows OS