描述
ABB PM645B产品详情
一、基本信息
品牌：ABB（全球领先的电力和自动化技术集团）
型号：PM645B
类型：过程控制与电机管理模块（Process&Motor Management Unit）
用途：主要用于ABB 800xA自动化系统或中高压电机控制中心（MCC），实现电机保护、控制、监测及通信功能，适用于工业、能源、基础设施等领域。
二、技术规格
核心功能
电机保护：集成过载、短路、接地故障、欠压/过压、缺相、堵转等保护功能，符合IEC 60947-4-1标准。
控制逻辑：支持直接启动、星三角启动、软启动等多种控制方式，可编程逻辑（通过ABB 800xA或AC800M控制器）。
测量与监测：实时采集电流、电压、功率、频率、温度等参数，支持趋势记录与事件日志。
通信能力：支持Modbus TCP/IP、Profibus DP、IEC 61850等协议，与DCS/SCADA系统无缝集成。
电气参数
额定电压：
电源电压：24VDC/110VDC/220VDC（可选）
测量电压：AC 100V-690V（线电压）
额定电流：
测量范围：0.1A-5A（通过CT二次侧输入）
适配电机功率：支持数kW至MW级电机（视具体配置）
精度：
电流/电压测量：±0.5%
功率测量：±1%
响应时间：保护动作时间<50ms（典型值，依故障类型而定）。
环境与机械特性
工作温度：-20℃至+60℃（标准版），-40℃至+70℃（宽温版可选）。
防护等级：IP20（控制柜内安装），可选IP54（户外型防护罩）。
安装方式：DIN导轨或面板固定，支持冗余安装（双模块热备份）。
尺寸与重量：约150mm×100mm×80mm，重量<1kg。
三、应用领域
工业自动化
电机控制中心（MCC）：在化工、石油、冶金等行业中，集中管理数百台电机，实现统一监控与保护。
泵与风机控制：通过变频器或软启动器配合PM645B，优化能耗，减少机械冲击。
能源与基础设施
发电厂：保护汽轮机辅机、锅炉给水泵等关键电机。
水处理：监控水泵运行状态，预防空转或过载。
轨道交通：用于地铁、高铁的牵引电机保护与控制。
建筑与楼宇自动化
HVAC系统：保护冷却塔、空调机组电机，提升能效。
消防系统：确保消防泵电机在紧急情况下可靠启动。
ABB PM645B Product Details
I.Basic Information
Brand:ABB(the world’s leading power and automation technology group)
Model:PM645B
Type:Process&Motor Management Unit
Purpose:Mainly used in ABB 800xA automation system or medium and high voltage motor control center(MCC)to realize motor protection,control,monitoring and communication functions,suitable for industrial,energy,infrastructure and other fields.
II.Technical Specifications
Core Functions
Motor Protection:Integrated overload,short circuit,ground fault,undervoltage/overvoltage,phase loss,stall and other protection functions,in line with IEC 60947-4-1 standard.
Control Logic:Supports multiple control modes such as direct start,star-delta start,soft start,etc.,programmable logic(through ABB 800xA or AC800M controller).
Measurement and Monitoring:Real-time acquisition of current,voltage,power,frequency,temperature and other parameters,support trend recording and event log.
Communication capability:supports Modbus TCP/IP,Profibus DP,IEC 61850 and other protocols,and seamlessly integrates with DCS/SCADA systems.
Electrical parameters
Rated voltage:
Power supply voltage:24VDC/110VDC/220VDC(optional)
Measurement voltage:AC 100V-690V(line voltage)
Rated current:
Measurement range:0.1A-5A(through CT secondary input)
Applicable motor power:supports several kW to MW motors(depending on the specific configuration)
Accuracy:
Current/voltage measurement:±0.5%
Power measurement:±1%
Response time:Protection action time<50ms(typical value,depending on the fault type).
Environmental and mechanical characteristics
Operating temperature:-20℃to+60℃(standard version),-40℃to+70℃(wide temperature version optional).
Protection level:IP20(installed in the control cabinet),optional IP54(outdoor protective cover).
Installation method:DIN rail or panel fixed,support redundant installation(dual module hot backup).
Dimensions and weight:about 150mm×100mm×80mm,weight<1kg.
III.Application fields
Industrial automation
Motor control center(MCC):In the chemical,petroleum,metallurgical and other industries,hundreds of motors are centrally managed to achieve unified monitoring and protection.
Pump and fan control:Through the inverter or soft starter with PM645B,optimize energy consumption and reduce mechanical shock.
Energy and infrastructure
Power plant:Protect key motors such as turbine auxiliary machines and boiler feed pumps.
Water treatment:Monitor the operating status of water pumps to prevent idling or overload.
Rail transportation:Used for traction motor protection and control of subways and high-speed railways.
Building and building automation
HVAC system:Protect cooling towers and air conditioning unit motors to improve energy efficiency.
Fire protection system:Ensure that the fire pump motor can be started reliably in an emergency.
