描述
ABB REF620是一款高性能的馈线保护与控制装置，广泛应用于公用事业配电系统及工业电力网络，提供保护、控制、测量、监视及通信的集成解决方案。以下是其核心功能与技术特点的综合概述：
一、核心保护功能
全面的馈线保护
-过流与接地故障保护：支持非定向相间、接地过流保护，适用于中性点不接地、电阻或阻抗接地网络。
-高灵敏度接地保护：集成多频导纳保护技术，提升对高阻抗故障（如停机导线故障）的检测能力。
-电弧闪检测（AFD）：通过光检测通道识别开关柜、母线等区域的故障电弧，快速跳闸以保障人员与设备安全。
特殊场景保护
-分布式发电并网保护：支持检同期功能，确保分布式电源（如光伏、风电）安全接入主电网。
-电机与电容器保护：提供过载、欠压、过压保护，兼容基本电机及电容器组应用场景。
二、控制与监视能力
断路器控制
-支持本地按钮操作及远程控制（如先选择后跳闸SBO模式），通过IEC 61850、Modbus等协议实现灵活控制。
-集成联锁逻辑配置工具，满足复杂系统联锁需求。
状态监测与诊断
-实时显示单线图（SLD）及电气参数（电压、电流、功率），支持事件记录与故障录波分析。
-诊断功能覆盖CT/PT回路异常、跳合闸回路完整性等，简化运维流程。
三、通信与协议兼容性
IEC 61850标准：支持GOOSE报文、IEC 61850-9-2过程总线，实现变电站设备间无缝互操作。
冗余通信协议：集成PRP（并行冗余协议）和HSR（高可用性无缝冗余）以太网接口，消除单点故障风险。
多协议适配：兼容Modbus、DNP3、IEC 60870-5-103等标准，支持IEEE 1588 V2高精度时间同步。
四、硬件设计与扩展性
模块化与可扩展性
-抽屉式设计便于快速安装与维护，支持RIO600远程I/O扩展模块，灵活适配不同规模系统。
-提供单母线/双母线、单断路器/双断路器等标准配置，覆盖辐射、环形及网状电网场景。
人机交互
-大尺寸LCD显示屏支持自定义单线图显示，本地HMI操作或基于Web的远程访问。
-可编程按钮与报警LED，简化故障响应流程。
MVME147SRF
MVME147SRF
ABB REF620 is a high-performance feeder protection and control device,which is widely used in utility distribution systems and industrial power networks,providing integrated solutions for protection,control,measurement,monitoring and communication.The following is a comprehensive overview of its core functions and technical features:
I.Core protection functions
Comprehensive feeder protection
-Overcurrent and ground fault protection:Supports non-directional phase-to-phase and ground overcurrent protection,suitable for neutral point ungrounded,resistance or impedance grounded networks.
-High sensitivity ground protection:Integrated multi-frequency admittance protection technology to improve the detection capability of high impedance faults(such as shutdown conductor faults).
-Arc flash detection(AFD):Identify fault arcs in switchgear,busbars and other areas through optical detection channels,and quickly trip to ensure the safety of personnel and equipment.
Special scenario protection
-Distributed generation grid connection protection:Supports synchronization check function to ensure that distributed power sources(such as photovoltaic and wind power)are safely connected to the main power grid.
-Motor and capacitor protection:Provides overload,undervoltage and overvoltage protection,compatible with basic motor and capacitor bank application scenarios.
2.Control and monitoring capabilities
Circuit breaker control
-Supports local button operation and remote control(such as SBO mode with selection first and trip later),and realizes flexible control through protocols such as IEC 61850 and Modbus.
-Integrated interlocking logic configuration tool to meet the interlocking requirements of complex systems.
State monitoring and diagnosis
-Real-time display of single line diagram(SLD)and electrical parameters(voltage,current,power),supporting event recording and fault recording analysis.
-Diagnostic functions cover CT/PT circuit abnormalities,tripping and closing circuit integrity,etc.,simplifying the operation and maintenance process.
3.Communication and protocol compatibility
IEC 61850 standard:supports GOOSE messages and IEC 61850-9-2 process bus to achieve seamless interoperability between substation equipment.
Redundant communication protocol:integrated PRP(parallel redundancy protocol)and HSR(high availability seamless redundancy)Ethernet interfaces to eliminate the risk of single point failure.
Multi-protocol adaptation:compatible with Modbus,DNP3,IEC 60870-5-103 and other standards,supporting IEEE 1588 V2 high-precision time synchronization.
IV.Hardware design and scalability
Modularity and scalability
-The drawer-type design facilitates quick installation and maintenance,supports RIO600 remote I/O expansion modules,and flexibly adapts to systems of different sizes.
-Provides standard configurations such as single bus/double bus,single circuit breaker/double circuit breaker,covering radial,ring and mesh power grid scenarios.
Human-computer interaction
-The large-size LCD display supports custom single-line diagram display,local HMI operation or web-based remote access.
-Programmable buttons and alarm LEDs simplify the fault response process.
