Current protection relay PR-80L

voltagefrequencyphase sequence

PR-80L power line protection relay is suitable for protection and monitoring of low-voltage lines with rated voltage below 690V and rated current up to 820A. PR-80L can monitor on-site signals in real time and provides system protection against harm to the line caused by faults such as overload, overcurrent, undervoltage, overvoltage, grounding or leakage. It can realize a variety of operation control functions and also has measurement functions, self-diagnosis, maintenance management, fieldbus communication and other functions. PR-80L power line protection relay realize measurement functions, protection functions, opening and closing control functions and remote communication functions; it has 10 channels relay monitoring, can be configured as needed, and supports MODBUS-RTU communication. Feature of PR-80L Power Line Protection Relay • Ultra-wide range working power supply AC85-265V. • Undervoltage, overvoltage and frequency monitoring in AC systems. • Digital measured value display via multi-functional LCD display. • Save the latest 100 trip records. • Internal test/reset button, Integrated energy backup. • Asymmetry, phase fault and phase sequence monitoring. • Adjustable start-up delay, response delay and delay on release. • The protection functions are complete, and each protection function can realize protection shutdown, alarm or trip. • Built-in 4-way relay, which can set to protection mode and measurement and control mode. • Programmable analog output function, standard RS-485 communication interface. • 96*96mm, Modular design, small size and flexible structure.