描述
一、核心功能与定位
产品定位
功能：数字式馈线保护继电器，专用于配电网络的过流保护，支持接地故障、相位不连续、负序及热过载保护，适用于发电厂、变电站、电网输电线路等场景。
特性：作为ABB Relion®产品家族的605系列成员，集保护、监测与控制功能于一体，支持预配置功能以简化调试。
硬件兼容性
传感器接口：支持传统电流互感器（CT）或Rogowski线圈传感器，适配1A或5A输入，提升性能与标准化程度。
安装方式：压配合安装设计，支持快速部署于紧凑型中压开关柜，兼容可拆卸接线端子，增强安全性。
二、技术参数与保护功能
核心保护功能
过流保护：三级过流保护（含定时DT与反时限IDMT特性），支持IEC与ANSI标准曲线。
接地故障保护：两级接地故障保护，剩余电流可通过相电流或铁芯平衡CT测量。
热过载保护：基于馈线、电缆或变压器的热模型，防止过载损坏。
附加保护：负序过流、断相保护、断路器故障保护，适用于架空线路的自动重合闸功能。
通信与控制
协议支持：Modbus RTU、IEC 60870-5-103，支持二线制RS485接口。
本地人机界面（HMI）：支持多语言操作，可配置二进制输入/输出及报警LED指示灯。
PROFIBUS PA兼容性：支持Profile 3.01标准，需在启动前配置设备地址（0-125）。
电源与功耗
通用电源：24-265V AC/DC，适应宽电压范围。
电流输出：默认4-20mA，支持主动/被动模式配置（需根据防爆区域选择）。
三、应用场景
电力系统保护
主保护装置：用于架空线路、电缆馈线及配电变压器的短路、过流保护，防止浪涌电流导致的误跳闸。
工业配电：适配电阻接地、隔离网络等复杂接地系统，提升电网稳定性。
紧凑空间适配
开关柜集成：体积小巧，支持压配合安装，适用于空间受限的中压开关设备
REJ601 BD446NN1XG
REJ601 BD446NN1XG
1.Core functions and positioning
Product Positioning
Function:Digital feeder protection relay,dedicated to overcurrent protection of distribution networks,supports ground faults,phase discontinuity,negative sequence and thermal overload protection,suitable for power plants,substations,power grid transmission lines and other scenarios.
Features:As a 605-series member of the ABB Relion®product family,it integrates protection,monitoring and control functions,and supports pre-configured functions to simplify debugging.
Hardware compatibility
Sensor interface:supports traditional current transformer(CT)or Rogowski coil sensors,adapted to 1A or 5A inputs,improving performance and standardization.
Installation method:Press-fit installation design,supports rapid deployment in compact medium-voltage switch cabinet,compatible with removable terminals,and enhances safety.
2.Technical parameters and protection functions
Core protection functions
Overcurrent protection:three-stage overcurrent protection(including timing DT and inverse time IDMT characteristics),supporting IEC and ANSI standard curves.
Ground fault protection:Two-stage ground fault protection,the residual current can be measured by phase current or core balance CT.
Thermal overload protection:Based on the thermal model of feeders,cables or transformers to prevent overload damage.
Additional protection:negative sequence overcurrent,phase breaking protection,circuit breaker failure protection,suitable for the automatic reclosing function of overhead lines.
Communication and Control
Protocol support:Modbus RTU,IEC 60870-5-103,supports two-wire RS485 interface.
Local human-machine interface(HMI):supports multilingual operation,and can be configured with binary input/output and alarm LED indicators.
PROFIBUS PA compatibility:Supports Profile 3.01 standard,and the device address(0-125)must be configured before startup.
Power and power consumption
General power supply:24-265V AC/DC,adapting to a wide voltage range.
Current output:default 4-20mA,supports active/passive mode configuration(need to be selected according to the explosion-proof area).
III.Application scenarios
Power system protection
Main protection device:used for short-circuit and overcurrent protection of overhead lines,cable feeders and distribution transformers to prevent accidental tripping caused by inrush current.
Industrial power distribution:adapts to complex grounding systems such as resistor grounding,isolation networks,etc.,to improve grid stability.
Compact space adaptation
Switch cabinet integration:small size,supports pressure-fit installation,suitable for space-constrained medium-voltage switching equipment
