描述
1.产品定位与核心功能
1.1应用场景
石油化工行业：
用于泵类电动机（如原油输送泵、注水泵）的过载保护、堵转保护、相不平衡保护，防止电动机烧毁导致生产中断。
配合ABB Ability™System 800xA DCS系统，实现与工艺流程的联动控制（如泵故障时联锁停机），并支持电动机能效监测（如负载率、功率因数分析）。
电力行业：
保护给水泵、引风机、送风机等关键辅机电动机，支持直接启动、软启动、变频启动多种模式。
在火电厂中，通过IEC 61850协议与厂级监控信息系统（SIS）通信，实现电动机运行数据远程监控及能效对标管理。
冶金行业：
用于高炉鼓风机、转炉倾动电机的高速保护（额定转速＞3000rpm），响应时间＜20ms，避免机械损坏。
支持抗电磁干扰设计（符合IEC 61000-4-6标准），适应强电磁环境，并集成电动机振动监测接口（需外接传感器）。
水泥行业：
保护磨机主电机、窑尾排风机等大功率电动机（功率＞500kW），提供热过载反时限保护，防止电动机绕组过热。
通过PROFIBUS-DP协议与PLC系统集成，实现电动机启停自动化控制，并支持电动机启停次数统计（用于维护周期管理）。
市政供水：
用于水泵电动机的漏电保护、欠压保护、过压保护，确保供水安全。
支持中文液晶显示和能耗统计功能（如日/月用电量、功率因数趋势），方便现场运维人员操作及节能优化。
造纸行业：
保护碎浆机、压榨辊电机等频繁启停电动机，提供启动时间过长保护和多次启动限制功能，延长电动机寿命。
通过Modbus TCP协议与MES系统集成，实现电动机运行状态与生产批次关联，优化生产调度。
1.2技术亮点
多原理保护集成：
集成过载保护、堵转保护、相不平衡保护、漏电保护、欠压/过压保护、接地故障保护、热过载保护、逆功率保护、启动时间过长保护、负序电流保护、过转矩保护、欠转矩保护等12+种保护功能，减少二次设备数量，降低接线复杂度。
高精度测量与能效分析：
电流/电压测量精度≤±0.5%，功率测量精度≤±1%，频率测量精度≤±0.01Hz，支持有功/无功电能计量（符合IEC 62053-22标准）。
内置能效分析算法，可计算电动机负载率、功率因数、效率，并生成能效报告（支持导出至USB或上传至云平台）。
快速动作时间与高可靠性：
短路保护动作时间＜10ms（从故障发生到出口跳闸），远低于标准要求的20ms，有效限制故障扩大。
采用双核处理器（ARM Cortex-M7+DSP），实现保护逻辑与测量计算分离，提高系统稳定性。
自适应保护逻辑：
根据电动机运行工况（启动、运行、空载、负载）自动调整保护定值，避免误动/拒动。
支持季节性定值调整（如夏季高温时提高过载保护阈值）。
通信与集成能力：
支持Modbus RTU/TCP、PROFIBUS-DP、IEC 61850、OPC UA等多种工业协议，可与DCS、PLC、SCADA、MES、ERP系统无缝集成。
内置Web服务器，支持通过浏览器远程访问装置界面，实现参数配置、事件查询、实时数据监控。
可编程逻辑与扩展性：
内置功能块图（FBD）编程环境，用户可自定义复杂控制逻辑（如联锁启动、顺序控制、故障复归策略）。
支持扩展模块（如IO模块、温度输入模块、振动输入模块），满足个性化需求。
抗干扰与环保设计：
符合IEC 61000-4-3（辐射抗扰度10V/m）、IEC 61000-4-6（传导抗扰度10V）标准，适应恶劣工业环境。
采用无铅化设计，符合RoHS标准，支持绿色制造。
2.技术规格与详细参数
2.1基础参数
参数规格
型号LDMUI-01
制造商ABB集团（瑞士）
系列System Pro M Power系列
保护对象三相交流低压电动机（额定电压380V-690V，额定功率0.37kW-1000kW）
保护功能主保护：短路保护、堵转保护、漏电保护、过转矩保护、欠转矩保护
后备保护：过载保护、相不平衡保护、欠压/过压保护、接地故障保护、热过载保护、逆功率保护、启动时间过长保护、负序电流保护
测量功能三相电流、三相电压、有功功率、无功功率、视在功率、功率因数、频率、有功电能、无功电能
能效分析负载率计算、效率计算、功率因数趋势分析、能耗统计（日/月/年）
测量通道3路电流输入（TA二次侧）
3路电压输入（TV二次侧）
1路漏电电流输入
2路温度输入（PT100/PT1000，可选）
2路振动输入（加速度传感器，可选）
精度电流/电压测量：±0.5%满量程
功率测量：±1%
频率测量：±0.01Hz
电能计量：±0.5S级（有功）、±2级（无功）
分辨率电流：0.01A
电压：0.1V
功率：0.1kW
频率：0.001Hz
电能：0.01kWh
动作时间短路保护：＜10ms
过载保护：反时限特性（可调）
漏电保护：＜50ms
过转矩保护：＜20ms
隔离方式电气隔离（输入/输出/电源间隔离电压2500V AC）
防护等级IP20（前面板），IP00（背面端子）
工作温度-25℃至+70℃（存储温度-40℃至+85℃）
湿度5%-95%RH（无冷凝）
抗干扰能力符合IEC 61000-4-3（辐射抗扰度10V/m）
IEC 61000-4-6（传导抗扰度10V）
1.Product positioning and core functions
1.1 Application scenarios
Petrochemical industry:
Used for overload protection,stall protection,and phase imbalance protection of pump motors(such as crude oil delivery pumps and water injection pumps)to prevent motor burnout and production interruption.
Cooperating with ABB Ability™System 800xA DCS system,it realizes linkage control with process flow(such as interlocking shutdown when pump fails),and supports motor energy efficiency monitoring(such as load rate and power factor analysis).
Power industry:
Protect key auxiliary motors such as feedwater pumps,induced draft fans,and forced draft fans,and support multiple modes such as direct start,soft start,and variable frequency start.
In thermal power plants,it communicates with the plant-level monitoring information system(SIS)through the IEC 61850 protocol to realize remote monitoring of motor operation data and energy efficiency benchmarking management.
Metallurgical industry:
Used for high-speed protection of blast furnace blowers and converter tilting motors(rated speed>3000rpm),response time<20ms,to avoid mechanical damage.
Supports anti-electromagnetic interference design(compliant with IEC 61000-4-6 standard),adapts to strong electromagnetic environments,and integrates motor vibration monitoring interface(external sensor required).
Cement industry:
Protects high-power motors(power>500kW)such as mill main motors and kiln tail exhaust fans,provides thermal overload inverse time protection,and prevents motor windings from overheating.
Integrates with PLC system through PROFIBUS-DP protocol to realize automatic control of motor start and stop,and supports motor start and stop count(for maintenance cycle management).
Municipal water supply:
Used for leakage protection,undervoltage protection,and overvoltage protection of water pump motors to ensure water supply safety.
Supports Chinese LCD display and energy consumption statistics(such as daily/monthly power consumption,power factor trend),which is convenient for on-site operation and maintenance personnel to operate and optimize energy saving.
Papermaking industry:
Protect the frequent start and stop motors such as pulpers and press roller motors,provide protection against long start time and multiple start limit functions,and extend the life of the motor.
Integrate with the MES system through the Modbus TCP protocol to realize the association between the motor operation status and the production batch,and optimize production scheduling.
1.2 Technical highlights
Multi-principle protection integration:
Integrate overload protection,stall protection,phase imbalance protection,leakage protection,undervoltage/overvoltage protection,ground fault protection,thermal overload protection,reverse power protection,long start time protection,negative sequence current protection,overtorque protection,undertorque protection,etc.12+protection functions,reduce the number of secondary devices and reduce the complexity of wiring.
High-precision measurement and energy efficiency analysis:
Current/voltage measurement accuracy≤±0.5%,power measurement accuracy≤±1%,frequency measurement accuracy≤±0.01Hz,support active/reactive energy metering(compliant with IEC 62053-22 standard).
Built-in energy efficiency analysis algorithm,can calculate motor load rate,power factor,efficiency,and generate energy efficiency report(support export to USB or upload to cloud platform).
Fast action time and high reliability:
Short-circuit protection action time<10ms(from fault occurrence to exit tripping),much lower than the standard requirement of 20ms,effectively limiting the expansion of faults.
Adopting dual-core processor(ARM Cortex-M7+DSP),separation of protection logic and measurement calculation is realized to improve system stability.
Adaptive protection logic:
Automatically adjust protection setting according to motor operating conditions(starting,running,no-load,load)to avoid false action/refusal to act.
Support seasonal setting adjustment(such as increasing the overload protection threshold during high temperatures in summer).
Communication and integration capabilities:
Supports multiple industrial protocols such as Modbus RTU/TCP,PROFIBUS-DP,IEC 61850,OPC UA,etc.,and can be seamlessly integrated with DCS,PLC,SCADA,MES,and ERP systems.
Built-in Web server supports remote access to the device interface through a browser to achieve parameter configuration,event query,and real-time data monitoring.
Programmable logic and scalability:
Built-in function block diagram(FBD)programming environment,users can customize complex control logic(such as interlocking start,sequential control,and fault recovery strategy).
Support expansion modules(such as IO modules,temperature input modules,and vibration input modules)to meet personalized needs.
Anti-interference and environmental protection design:
Complies with IEC 61000-4-3(radiated immunity 10V/m)and IEC 61000-4-6(conducted immunity 10V)standards,and is suitable for harsh industrial environments.
It adopts lead-free design,complies with RoHS standards,and supports green manufacturing.
2.Technical specifications and detailed parameters
2.1 Basic parameters
Parameters Specifications
Model LDMUI-01
Manufacturer ABB Group(Switzerland)
Series System Pro M Power series
Protection object Three-phase AC low-voltage motor(rated voltage 380V-690V,rated power 0.37kW-1000kW)
Protection function Main protection:short circuit protection,stall protection,leakage protection,over-torque protection,under-torque protection
Backup protection:overload protection,phase imbalance protection,undervoltage/overvoltage protection,ground fault protection,thermal overload protection,reverse power protection,long start-up time protection,negative sequence current protection
Measurement function Three-phase current,three-phase voltage,active power,reactive power,apparent power,power factor,frequency,active power,reactive power
Energy efficiency analysis Load rate calculation,efficiency calculation,power factor trend analysis,energy consumption statistics(day/month/year)
Measurement channel 3 current inputs(TA secondary side)
3 voltage inputs(TV secondary side)
1 leakage current input
2 temperature inputs(PT100/PT1000,optional)
2 vibration inputs(accelerometer,optional)
Accuracy Current/voltage measurement:±0.5%full scale
Power measurement:±1%
Frequency measurement:±0.01Hz
Energy measurement:±0.5S level(active),±2 level(reactive)
Resolution Current:0.01A
Voltage:0.1V
Power:0.1kW
Frequency:0.001Hz
Energy:0.01kWh
Action time Short circuit protection:<10ms
Overload protection:inverse time characteristic(adjustable)
Leakage protection:<50ms
Over torque protection:<20ms
Isolation method Electrical isolation(isolation voltage between input/output/power supply 2500V AC)
Protection level IP20(front panel),IP00(back terminal)
Operating temperature-25℃to+70℃(storage temperature-40℃to+85℃)
Humidity 5%-95%RH(non-condensing)
Immunity Complies with IEC 61000-4-3(radiated immunity 10V/m)
IEC 61000-4-6(conducted immunity 10V)
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
