ICS TRIPLEX T8150控制模块,电源模块
编程300分钟（5小时）作为停止冷却时间常数。因此，在2次冷启动或1次热启动后，停止的电机将被阻止启动5小时。•由于电机运行时转子冷却速度更快，因此运行冷却时间常数的合理设置可能是停止冷却时间常数或150分钟的一半。GE Power Management 469电机管理继电器D-1附录D D.1电流互感器D附录D附录DD.1电流互感器D.1.1 50接地故障CT:0.025 A CT应使用专门设计用于匹配GE Power Management电机保护继电器接地故障输入的CT，以确保正确的性能。这些CT具有50:0.025A（2000:1的比率），能够以最小的误差感测继电器设置范围内的低泄漏电流。有三种尺寸可供选择，分别为3½“、5½”、，HGF3/HGF5尺寸HGF8尺寸D-2 469电机管理继电器GE电源管理D.1电流互感器附录D D.1.2 5 A次级CT的接地故障CTS对于低电阻或牢固接地系统，应使用5 A次级电流互感器。有两种尺寸可用于5½”或13”×16”窗口。可选择各种初级电流互感器（50至250）.GCT5 GCT16尺寸尺寸GE Power Management 469电机管理继电器D-3附录D D.1电流互感器D D.1.3相位CTS电流互感器的最常见比例为50:5至1000:5，可用作电机保护继电器的相位电流输入。这些带有安装硬件，也可用于1A辅助设备。电压等级：600 V BIL 10 kV。GE Power Management 469电机管理继电器E-1附录E E.1图和表E附录E E.1.1图和表E.1.1概述1.1.1描述469电机控制继电器是一种基于微处理器的继电器，设计用于保护和管理中、大马力电机和驱动设备。469配备了六个输出继电器，用于跳闸、报警和启动块。电机保护、故障诊断、功率计量和RTU功能集成在一个经济型抽出式组件中。下面的单线图说明了使用ANSI（美国国家标准协会）设备编号的469功能。图1–1：单线图典型应用包括：此处详细介绍了一些保护亮点；完整列表如下所示。四个可分配的数字输入可配置用于许多不同的功能，包括转速表或通用跳闸和具有可编程名称的报警。热模型包括不平衡偏置、RTD反馈和指数冷却。除了15条标准过载曲线外，还有一条定制曲线特征和一条专门为高惯性负载启动而设计的曲线，•泵•风机•压缩机•磨机•粉碎机•挤出机•除渣机•精炼机•起重机•输送机•冷却器•破碎机•鼓风机1-2 469电机管理继电器GE Multilin 1.1概述1简介1当加速时间超过安全停转时间时。为双速电机提供第二过载曲线。使用GE Power Management 50:0.025接地CT可以检测到低至0.25 A的接地故障或接地泄漏。还提供了用于相位差保护的CT输入。提供的12个RTD输入可以针对不同的RTD类型单独进行现场编程。电压互感器输入允许基于电压和功率量的多种保护功能。四个4至20 mA模拟输入可用于任何传感器的跳闸和报警
Program 300 minutes (5 hours) as the stopped cool time constant. Thus after 2 cold or 1 hot start, a stopped motor will be blocked from starting for 5 hours. • Since the rotor cools faster when the motor is running, a reasonable setting for the running cool time constant might be half the stopped cool time constant or 150 minutes. GE Power Management 469 Motor Management Relay D-1 APPENDIX D D.1 CURRENT TRANSFORMERS D APPENDIX D APPENDIX DD.1 CURRENT TRANSFORMERS D.1.1 GROUND FAULT CTS FOR 50:0.025 A CTs that are specially designed to match the ground fault input of GE Power Management motor protection relays should be used to ensure correct performance. These CTs have a 50:0.025A (2000:1 ratio) and can sense low leakage currents over the relay setting range with minimum error. Three sizes are available with 3½", 5½", or 8" diameter windows. HGF3 / HGF5 DIMENSIONS HGF8 DIMENSIONS D-2 469 Motor Management Relay GE Power Management D.1 CURRENT TRANSFORMERS APPENDIX D D D.1.2 GROUND FAULT CTS FOR 5 A SECONDARY CT For low resistance or solidly grounded systems, a 5 A secondary CT should be used. Two sizes are available with 5½” or 13” × 16” windows. Various Primary amp CTs can be chosen (50 to 250). GCT5 GCT16 DIMENSIONS DIMENSIONS GE Power Management 469 Motor Management Relay D-3 APPENDIX D D.1 CURRENT TRANSFORMERS D D.1.3 PHASE CTS Current transformers in most common ratios from 50:5 to 1000:5 are available for use as phase current inputs with motor protection relays. These come with mounting hardware and are also available with 1 A secondaries. Voltage class: 600 V BIL 10 kV. GE Power Management 469 Motor Management Relay E-1 APPENDIX E E.1 FIGURES AND TABLES E APPENDIX E APPENDIX EE.1 FIGURES AND TABLES E.1.1 1.1OVERVIEW 1.1.1 DESCRIPTION The 469 Motor Management Relay is a microprocessor based relay designed for the protection and management of medium and large horsepower motors and driven equipment. The 469 is equipped with six output relays for trips, alarms, and start blocks. Motor protection, fault diagnostics, power metering, and RTU functions are integrated into one economical drawout package. The single-line diagram below illustrates the 469 functionality using ANSI (American National Standards Institute) device numbers. Figure 1–1: SINGLE LINE DIAGRAM Typical applications include: Some of the protection highlights are detailed here; a complete list is shown below. Four assignable digital inputs may be configured for a number of different features including tachometer or generic trip and alarm with a programmable name. The thermal model incorporates unbalance biasing, RTD feedback, and exponential cooling. In addition to the 15 standard overload curves, there is a custom curve feature and a curve specifically designed for the starting of high inertia loads, • Pumps • Fans • Compressors • Mills • Shredders • Extruders • Debarkers • Refiners • Cranes • Conveyors • Chillers • Crushers • Blowers 1-2 469 Motor Management Relay GE Multilin 1.1 OVERVIEW 1 INTRODUCTION 1 when the acceleration time exceeds the safe stall time. A second overload curve is provided for two-speed motors. Ground faults or earth leakage as low as 0.25 A may be detected using the GE Power Management 50:0.025 Ground CT. CT inputs for phase differential protection are also provided. The 12 RTD inputs provided may be individually field programmed for different RTD types. Voltage transformer inputs allow for numerous protection features based on voltage and power quantities. Four 4 to 20 mA analog inputs may be used for tripping and alarming on any transducer
