IS200CABPG1B工控模块系统备件
• 三相中、大马力电机和驱动设备的保护和管理，包括高惯量、双速和降压启动电机Multilin 469 469电机保护系统2 GEGridSolutions.com 52 BUS 50 50G 2 27 R1 TRIP 59 47 81测量V、A、W、Var、VA、PF、，Hz 55 50 50G 51G 51 49 37 66 46 78 87 49 38 RTD环境空气3 3定子RTD轴承RTD电机14负载转速表DCMA 74 86启动RS232 RS485 RS485 806807A7.cdr 4模拟输入4隔离模拟输出R6服务R5阻断启动R4报警R3辅助R2辅助469电机管理系统以太网保护和控制469是一个数字电机保护系统，旨在保护和管理中大型电机和驱动设备。它包含功能框图和功能表中详细说明的全系列选择性启用、自包含的保护和控制元件。电机热模型469的主要保护功能是具有六个关键要素的热模型：•过载曲线•不平衡偏置•热/冷安全失速比•电机冷却时间常数•启动抑制和紧急重启•RTD偏置过载曲线曲线可采用三种格式之一：标准、自定义或电压相关。对于所有曲线样式，469在热容量使用寄存器中保留热存储器，每0.1秒更新一次。过载传感器确定运行过载曲线的开始位置。469条标准过载曲线为标准形状，乘数值为1至15。电压相关过载曲线用于高惯性负载应用，其中电机加速时间实际上可能超过安全失速时间和电机热极限。在电机加速期间，根据系统电压水平动态调整编程的热过载曲线。过载曲线类型和形状的选择基于电机供应商提供的电机热极限曲线。典型的定制曲线6500马力，13800伏引风机电机10000 1000 10 1.0 0.1 0.5 1.0 10 1000 806803A5.cdr满载电流设定值的倍数跳闸时间（秒）1 1 2 2 3 4 4 5编程469自定义曲线运行安全（定子极限）加速安全（转子极限）电机电流@100%电压电机电流@80%电压功能框图15曲线12 9 7 4 3 1 10相电流（满载倍数）1满载设定值0.1 10000 1000 100跳闸时间（秒）10 1 819765A8.cdr典型自定义过载曲线。15条标准过载曲线。设备编号功能14速度开关19/48降低电压启动和不完整顺序27/59欠压/过压32反向功率机械阻塞加速时间过转矩37
• Protection and Management of three phase medium and large horsepower motors and driven equipment, including high inertia, two speed and reduced-voltage start motors Multilin 469 469 Motor Protection System 2 GEGridSolutions.com 52 BUS 50 50G 2 27 R1 TRIP 59 47 81 METERING V,A,W,Var,VA,PF,Hz 55 50 50G 51G 51 49 37 66 46 78 87 49 38 RTD AMBIENT AIR 3 3 STATOR RTDs BEARING RTDs MOTOR 14 14 LOAD TACHOMETER DCMA 74 86 START RS232 RS485 RS485 806807A7.cdr 4 ANALOG INPUTS 4 ISOLATED ANALOG OUTPUTS R6 SERVICE R5 BLOCK START R4 ALARM R3 AUXILIARY R2 AUXILIARY 469 Motor Management System Ethernet Protection and Control The 469 is a digital motor protection system designed to protect and manage medium and large motors and driven equipment. It contains a full range of selectively enabled, self contained protection and control elements as detailed in the Functional Block Diagram and Features table. Motor Thermal Model The primary protective function of the 469 is the thermal model with six key elements: • Overload Curves • Unbalance Biasing • Hot/Cold Safe Stall Ratio • Motor Cooling Time Constants • Start Inhibit and Emergency Restart • RTD Biasing Overload Curves The curves can take one of three formats: standard, custom, or voltage dependent. For all curve styles, the 469 retains thermal memory in a thermal capacity used register which is updated every 0.1 second. The overload pickup determines where the running overload curve begins. The 469 standard overload curves are of standard shape with a multiplier value of 1 to 15. The voltage dependent overload curves are used in high inertia load applications, where motor acceleration time can actually exceed the safe stall time and motor thermal limits. During motor acceleration, the programmed thermal overload curve is dynamically adjusted with reference to the system voltage level. The selection of the overload curve type and the shape is based on motor thermal limit curves provided by motor vendor. TYPICAL CUSTOM CURVE 6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR 10000 1000 100 10 1.0 0.1 0.5 1.0 10 100 1000 806803A5.cdr MULTIPLE OF FULL LOAD CURRENT SETPOINT TIME TO TRIP IN SECONDS 1 1 2 2 3 3 4 4 5 5 PROGRAMMED 469 CUSTOM CURVE RUNNING SAFETIME (STATOR LIMIT) ACCELERATION SAFETIME (ROTOR LIMIT) MOTOR CURRENT @ 100% VOLTAGE MOTOR CURRENT @ 80% VOLTAGE Functional Block Diagram 15 CURVE 12 9 7 4 3 2 1 10 PHASE CURRENT (multiples of full load) 1 Full Load Setpoint 0.1 10,000 1,000 100 TRIP TIME (seconds) 10 1 819765A8.cdr Typical custom overload curve. Fifteen standard overload curves. Device Number Function 14 Speed switch 19/48 Reduced voltage start and incomplete sequence 27/59 Undervoltage/Overvoltage 32 Reverse power Mechanical Jam Acceleration time Over Torque 37
