1.469电机保护系统是SR继电器系列的一个成员
在经济高效的行业领先环境中实现控制、简化配置和高级通信
拉出结构。469专为中压电机设计，提供先进的保护，具有：
可定制的过载曲线和单CT差动保护增加了灵活性。469还包括
使用电机设置自动配置器提供简化的配置，提供快速简便的
电机参数的设置。结合高级保护和诊断，469为用户提供
多种通信协议的灵活性，允许集成到新的和现有的控制中
网络。
2.主要好处
•综合电机保护加上电压相关过载曲线、扭矩测量和
保护，转子断条保护
•最先进的热模型-包括用于定子热保护的多个RTD输入
•尽量减少更换时间-抽出式施工
•完整的资产监控-温度、模拟I/O、全计量，包括需求和能源
•通过I/O监控改善辅助设备的正常运行时间
•减少故障排除时间和维护成本-事件报告、波形捕获、数据记录器
•内置模拟功能简化测试和调试
•通过标准RS232和RS485串行端口以及可选端口，经济高效地访问信息
3.以太网和DeviceNet端口
•现场可升级固件和设置
•可选保形涂层，用于暴露于化学腐蚀或潮湿环境
4.应用
•保护和管理三相、中型和大型马力电机和驱动电机
设备，包括高惯量、双速和低压启动电机
469 Motor Protection System, a member of the SR family of relays, provides protection,
control, simplified configuration and advanced communications in a cost effective industry leading
draw-out construction. Designed for medium voltage motors, the 469 delivers advanced protection with
customizable overload curves and single CT differential protection for added flexibility. The 469 also
provides simplified configuration using the Motor Settings Auto-Configurator, providing a quick and easy
set-up of motor parameters. Coupled with advanced protection and diagnostics, the 469 provides users
the flexibility of multiple communication protocols allowing integration into new and existing control
networks.
Key Benefits
• Comprehensive motor protection plus voltage dependant overload curves, torque metering and
protection, broken rotor bar protection
• Most advanced thermal model - Including multiple RTD inputs for stator thermal protection
• Minimize replacement time - Draw-out construction
• Complete asset monitoring - Temperature, Analog I/O, full metering including demand & energy
• Improve uptime of auxiliary equipment - Through I/O monitoring
• Reduce troubleshooting time and maintenance costs - Event reports, waveform capture, data logger
• Built in simulation functions simplify testing and commissioning
• Cost Effective Access to information - Through standard RS232 & RS485 serial ports, and optional
Ethernet and DeviceNet Ports
• Field upgradable firmware and settings
• Optional Conformal coating for exposure to chemically corrosive or humid environments
Applications
• Protection and Management of three phase medium and large horsepower motors and driven
equipment, including high inertia, two speed and reduced-voltage start motors
