Product Overview 

The BEC-811 is a fully featured microcomputer-based relay protection device designed for power systems with voltage levels up to 35kV. It is suitable for protection, measurement, control, and monitoring of lines, transformers, capacitor banks, and bus section breakers. The device adopts a high-performance hardware platform and integrates comprehensive protection functions with flexible communication interfaces. It can be widely used in switch-gear, centralized protection panels, and automation systems. 

Protection Functions 

The device offers a full range of protection configuration, covering dozens of protection functions, including phase-to-phase protection, earth fault protection, component protection, voltage protection, frequency protection, auto-re-closing and synchronism, as well as other special protection functions. Thus satisfy the requirements for fault detection and system response under various operating conditions.。 

Control Functions 

The device supports both local and remote control operations, making it suitable for unmanned substations and smart substations. The main control functions include local/remote open and close operations, remote setting modification, remote protection function enabling/disabling, and programmable protection/signal output configuration. In addition, the device supports CT power harvesting and split trip functions for specific application scenarios. 

Application Scenarios： 

10kV - 35kV Lines 10kV - 35kV Transformers 10kV - 35kV Bus Couplers Capacitor Banks Distributed Generators Small Generators 

With its powerful protection functions, flexible configuration capabilities, and reliable operational performance, the BEC-811 provides a comprehensive, accurate, and efficient protection and control solution for power systems.