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）。
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Modbus TCP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。
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。
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。
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，方便现场运维人员操作。
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、负序电流保护等10+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：
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，满足电动机能效监测需求。
快速动作时间：
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。
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。
通信能力：
支持Modbus RTU/TCP、PROFIBUS-DP、IEC 61850等多种工业协议，可与DCS、PLC、SCADA系统无缝集成。
可编程逻辑：
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）。
抗干扰设计：
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。
2.技术规格与详细参数
2.1基础参数
参数规格
型号LDMTR-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
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
精度电流/电压测量：±0.5%满量程
功率测量：±1%
频率测量：±0.01Hz
分辨率电流：0.01A
电压：0.1V
功率：0.1kW
频率：0.001Hz
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
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.
Cooperate with ABB Ability™System 800xA DCS system to achieve linkage control with process flow(such as interlocking shutdown when pump fails).
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,communicate with the plant-level monitoring information system(SIS)through the Modbus TCP protocol to achieve remote monitoring of motor operation data.
Metallurgical industry:
Used for high-speed protection(rated speed>3000rpm)of blast furnace blowers and converter tilting motors,with a response time of<20ms to avoid mechanical damage.
Supports anti-electromagnetic interference design(compliant with IEC 61000-4-6 standard)and adapts to strong electromagnetic environments.
Cement industry:
Protect high-power motors(power>500kW)such as mill main motors and kiln tail exhaust fans,provide thermal overload inverse time protection to prevent motor windings from overheating.
Integrate with PLC system through PROFIBUS-DP protocol to realize automatic control of motor start and stop.
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 to facilitate operation by on-site operation and maintenance personnel.
1.2 Technical highlights
Multi-principle protection integration:
Integrated 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 and other 10+protection functions to reduce the number of secondary devices and reduce wiring complexity.
High-precision measurement:
Current/voltage measurement accuracy≤±0.5%,power measurement accuracy≤±1%,frequency measurement accuracy≤±0.01Hz,meeting the needs of motor energy efficiency monitoring.
Fast action time:
Short-circuit protection action time<10ms(from fault occurrence to exit tripping),far lower than the standard requirement of 20ms,effectively limiting the expansion of faults.
Adaptive protection logic:
Automatically adjust the protection setting according to the motor operating conditions(starting,running,no-load,load)to avoid false operation/refusal to operate.
Communication capability:
Supports multiple industrial protocols such as Modbus RTU/TCP,PROFIBUS-DP,IEC 61850,and can be seamlessly integrated with DCS,PLC,and SCADA systems.
Programmable logic:
Built-in function block diagram(FBD)programming environment,users can customize complex control logic(such as interlocking start,sequential control).
Anti-interference design:
Complies with IEC 61000-4-3(radiated immunity 10V/m),IEC 61000-4-6(conducted immunity 10V)standards,suitable for harsh industrial environments.
2.Technical specifications and detailed parameters
2.1 Basic parameters
Parameters Specifications
Model LDMTR-01
Manufacturer ABB Group(Switzerland)
Series System Pro M Power Series
Protected objects Three-phase AC low-voltage motors(rated voltage 380V-690V,rated power 0.37kW-1000kW)
Protection functions Main protection:short circuit protection,stall protection,leakage 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 channels 3 current inputs(TA secondary side)
3 voltage inputs(TV secondary side)
1 leakage current input
Accuracy Current/voltage measurement:±0.5%full scale
Power measurement:±1%
Frequency measurement:±0.01Hz
Resolution Current:0.01A
Voltage:0.1V
Power:0.1kW
Frequency:0.001Hz
Action time Short circuit protection:<10ms
Overload protection:inverse time characteristic(adjustable)
Leakage protection:<50ms
Isolation mode Electrical isolation(2500V AC isolation voltage between input/output/power supply)
Protection level IP20(front panel),IP00(back terminal)
Operating temperature-25℃to+70℃(storage temperature-40℃to+85℃)
Humidity 5%-95%RH(non-condensing)
Anti-interference ability Complies with IEC 61000-4-3(radiated immunity 10V/m)
IEC 61000-4-6(conducted immunity 10V)
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