描述
一、产品概述
型号:UAC389AE02 HIEE300888R0002
系列:ABB UAC系列(高压输电线路保护装置)
核心定位:
专为220kV及以上电压等级的输电线路设计,提供纵联差动保护、距离保护、方向过流保护等核心功能。
适用于长距离输电线路、联络线、大容量发电机-变压器组出口等关键场景。
典型应用场景:
国家电网/南方电网的超高压/特高压输电线路。
大型水电站、火电站的出线保护。
跨区域联网的联络线保护。
二、硬件规格
1.保护功能
纵联差动保护(主保护):
通过光纤或载波通道实现线路两端电流比对,快速切除区内故障(动作时间≤20ms)。
支持分相差动和零序差动,适应不同故障类型。
距离保护(后备保护):
三段式距离保护:
距离I段:瞬时动作,保护线路全长的80%-85%。
距离II段:带延时动作,保护本线路末端及相邻线路部分。
距离III段:长延时动作,作为远后备保护。
方向性判断:通过功率方向元件区分区内/区外故障。
方向过流保护:
结合电流幅值和方向元件,作为距离保护的后备。
零序保护:
检测单相接地故障,支持零序电流保护和零序方向保护。
其他保护:
过电压保护:监测线路电压异常升高(如操作过电压)。
低周减载:系统频率下降时自动切除非关键负荷。
2.测量功能
电气参数监测:
三相电压、电流有效值(精度±0.2%)。
有功功率、无功功率、功率因数(精度±0.5%)。
频率(精度±0.01Hz)、电能计量(kWh/kVarh)。
故障录波:
内置故障录波功能,可记录故障前后的电压、电流波形(采样率≥1kHz)。
支持COMTRADE格式导出,便于事故分析。
3.输入/输出(I/O)配置
数字输入(DI):
16路可编程DI,支持110V DC或220V DC(无源触点)。
典型用途:断路器位置、隔离开关位置、保护动作信号、闭锁信号等。
数字输出(DO):
12路可编程DO,额定250V DC/125V AC,5A(继电器触点)。
典型用途:跳闸、合闸、报警、信号复归、启动失灵等。
模拟输入(AI):
4路可编程AI,支持0-5V或4-20mA信号(需外接传感器)。
典型用途:温度、压力等非电气量监测(如线路弧垂监测)。
4.通信接口
串行接口:
2个RS-485端口,支持Modbus RTU协议(速率9600bps至19200bps)。
用于连接本地监控终端或上位机系统。
扩展通信:
可选配光纤以太网模块,支持IEC 60870-5-103或DNP3.0协议(需确认具体型号配置)。
部分型号可能支持IEC 61850(需通过协议转换器实现)。
5.人机界面(HMI)
显示屏:
单色LCD显示屏(分辨率约128×64像素),显示保护动作信息、测量值及设置参数。
按键:
6个功能按键(上、下、左、右、确认、返回),用于菜单导航和参数修改。
三、软件功能
保护定值管理:
支持多套定值组(如正常运行定值、检修定值),可现场切换或远程修改。
事件记录与故障分析:
记录最近100次事件(包括保护动作、开关变位、定值修改等)。
故障录波数据可通过专用软件(如ABB PCM600)分析。
逻辑编程:
支持功能块图(FBD)编程,实现定制化保护策略(如与、或、非逻辑组合)。
四、物理特性
尺寸:
标准19英寸机架安装(宽度约144mm,高度约177mm,深度约250mm)。
重量:
约5kg(含外壳及接线端子)。
防护等级:
IP40(防尘、防溅水,适用于室内环境)。
工作温度:
-10℃至+55℃(工业级环境适应性)。
1.Product Overview
Model:UAC389AE02 HIEE300888R0002
Series:ABB UAC series(high-voltage transmission line protection device)
Core positioning:
Designed for transmission lines with voltage levels of 220kV and above,it provides core functions such as longitudinal differential protection,distance protection,and directional overcurrent protection.
Applicable to key scenarios such as long-distance transmission lines,tie lines,and large-capacity generator-transformer group exports.
Typical application scenarios:
UHV/UHV transmission lines of State Grid/Southern Power Grid.
Outgoing line protection of large hydropower stations and thermal power stations.
Inter-regional interconnection line protection.
2.Hardware specifications
1.Protection function
Longitudinal differential protection(main protection):
Compare the currents at both ends of the line through optical fiber or carrier channel,and quickly remove faults in the area(action time≤20ms).
Supports phase differential and zero-sequence differential to adapt to different fault types.
Distance protection(backup protection):
Three-stage distance protection:
Distance section I:instantaneous action,protecting 80%-85%of the total length of the line.
Distance section II:with delayed action,protecting the end of the line and the adjacent line section.
Distance section III:long delay action,as remote backup protection.
Directional judgment:distinguish between internal/external faults through power direction elements.
Directional overcurrent protection:
Combined with current amplitude and direction elements,as a backup for distance protection.
Zero sequence protection:
Detect single-phase grounding faults,support zero sequence current protection and zero sequence directional protection.
Other protections:
Overvoltage protection:monitor abnormal increase in line voltage(such as operating overvoltage).
Low frequency load shedding:automatically cut off non-critical loads when system frequency drops.
2.Measurement function
Electrical parameter monitoring:
Three-phase voltage and current effective value(accuracy±0.2%).
Active power,reactive power,power factor(accuracy±0.5%).
Frequency(accuracy±0.01Hz),energy metering(kWh/kVarh).
Fault recording:
Built-in fault recording function,which can record voltage and current waveforms before and after the fault(sampling rate≥1kHz).
Support COMTRADE format export for accident analysis.
3.Input/output(I/O)configuration
Digital input(DI):
16 programmable DI,support 110V DC or 220V DC(passive contact).
Typical uses:circuit breaker position,disconnector position,protection action signal,lock signal,etc.
Digital output(DO):
12 programmable DO,rated 250V DC/125V AC,5A(relay contact).
Typical uses:tripping,closing,alarm,signal reset,start failure,etc.
Analog input(AI):
4 programmable AI,support 0-5V or 4-20mA signal(external sensor required).
Typical applications:non-electrical quantity monitoring such as temperature and pressure(such as line sag monitoring).
4.Communication interface
Serial interface:
2 RS-485 ports,supporting Modbus RTU protocol(rate 9600bps to 19200bps).
Used to connect to local monitoring terminal or host computer system.
Extended communication:
Optional fiber optic Ethernet module,supporting IEC 60870-5-103 or DNP3.0 protocol(need to confirm the specific model configuration).
Some models may support IEC 61850(need to be implemented through a protocol converter).
5.Human-machine interface(HMI)
Display:
Monochrome LCD display(resolution of about 128×64 pixels),displays protection action information,measurement values and setting parameters.
Buttons:
6 function buttons(up,down,left,right,confirm,return)for menu navigation and parameter modification.
3.Software functions
Protection setting management:
Supports multiple sets of setting groups(such as normal operation setting,maintenance setting),which can be switched on-site or modified remotely.
Event recording and fault analysis:
Record the last 100 events(including protection actions,switch changes,setting changes,etc.).
Fault recording data can be analyzed by dedicated software(such as ABB PCM600).
Logic programming:
Supports function block diagram(FBD)programming to achieve customized protection strategies(such as AND,OR,and NOT logical combinations).
4.Physical characteristics
Dimensions:
Standard 19-inch rack installation(width about 144mm,height about 177mm,depth about 250mm).
Weight:
About 5kg(including housing and terminal blocks).
Protection level:
IP40(dustproof,splashproof,suitable for indoor environment).
Operating temperature:
-10℃to+55℃(industrial grade environmental adaptability).
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