GE Multilin 469-P5-HI-A20-E 电机保护继电器

Description

GE Multilin 469-P5-HI-A20-E 电机保护继电器技术参数中文介绍

469-P5-HI-A20-E 是通用电气（GE）Multilin 469 系列中的一款高性能电机保护继电器，专为中大型电机的监测、控制与保护设计。以下为该产品的核心参数及功能详解：

一、469-P5-HI-A20-E  基础规格

1. 控制电源输入
   • 电压范围：支持 90-300 VDC 或 70-265 VAC（48-62 Hz），适应多种工业电源环境。
   • 兼容性：兼容直流与交流电源，确保在复杂电网中的稳定运行。
2. 电流互感器（CT）输入
   • 相CT次级额定值：5 A，满足中大型电机的电流监测需求。
3. 模拟输出
   • 输出范围：4-20 mA，支持多路模拟信号输出，可连接至 PLC、SCADA 或其他监控系统，实现远程状态监测。

二、469-P5-HI-A20-E  保护功能

1. 核心保护类型
   • 过载保护：实时监测电机电流，防止因过载导致的热损伤。
   • 短路保护：快速响应短路故障，避免设备损坏。
   • 接地故障保护：检测接地故障，保障人员与设备安全。
   • 缺相/不平衡保护：监测三相不平衡，防止电机因缺相运行而损坏。
   • 失速保护：检测电机转速异常，避免因机械卡阻导致的过热或烧毁。
2. 高级保护特性
   • 热容量监测：基于电机热模型，动态计算热容量，避免因频繁启停导致的热积累。
   • 不平衡偏置补偿：通过K系数调整不平衡电流的热效应，提高保护精度。

三、469-P5-HI-A20-E  通信与接口

1. 通信协议
   • 支持 Modbus RTU/TCP/IP、Ethernet/IP 等工业通信协议，实现与上位机或分布式控制系统的无缝集成。
2. 接口配置
   • RS-232 程序端口：波特率 9600（可编程至 19200），用于本地配置与调试。
   • 以太网端口（可选）：支持高速数据传输，便于远程监控与诊断。

四、469-P5-HI-A20-E  显示与操作

1. 前面板设计
   • LCD 显示屏：40 字符大屏，支持中文/英文显示，实时展示电机状态、故障信息及诊断数据。
   • LED 指示灯：直观显示电机运行、故障、报警等状态。
   • 数字键盘与编程键：支持本地参数配置、逻辑编程及故障复位。
   • 可密封抽出手柄：防止未经授权的拆卸，提升安全性。

五、环境适应性

1. 防护等级
   • IP20（标准版）：适用于普通工业环境。
   • IP67（可选恶劣环境版）：防尘防水，适用于高湿度、腐蚀性气体或粉尘环境。
2. 工作温度范围
   • -20°C 至 +60°C：满足极端环境下的稳定运行需求。
3. 抗冲击与振动
   • 通过 IEC 255-5 0.5 焦耳 5 kV 冲击试验，适应高振动工业场景。

六、认证与标准

• 认证：符合 ISO、UL、CSA、CE 等国际安全标准，确保产品在全球市场的合规性。
• 电磁兼容性（EMC）：通过工业级 EMC 测试，抗干扰能力强。

七、应用场景

1. 工业自动化
   • 适用于风机、泵、压缩机、破碎机等中大型电机的保护与控制。
2. 电力系统
   • 用于发电厂、变电站及配电系统中的电机设备保护。
3. 重工业领域
   • 在钢铁、石化、矿山等高负荷、高污染环境中，保障电机稳定运行。

八、优势总结

• 高可靠性：工业级设计与元器件，适应恶劣环境，减少维护成本。
• 灵活性：支持多种电源输入、通信协议及编程接口，适配不同系统架构。
• 智能化：内置热模型与不平衡补偿算法，提升保护精度与响应速度。
• 易用性：直观的显示界面与本地编程功能，简化调试与运维流程。

469-P5-HI-A20-E 是中大型电机保护领域的理想选择，能够为关键设备提供全方位的监测、控制与安全保障。

Introduction to Technical Parameters of GE Multilin 469-P5-HI-A20-E Motor Protection Relay in Chinese

469-P5-HI-A20-E is a high-performance motor protection relay in the General Electric (GE) Multilin 469 series, designed specifically for monitoring, control, and protection of medium to large motors. The following is a detailed explanation of the core parameters and functions of the product:

1、 469-P5-HI-A20-E Basic Specification
Control power input
Voltage range: Supports 90-300 VDC or 70-265 VAC (48-62 Hz), suitable for various industrial power environments.
Compatibility: Compatible with both DC and AC power sources, ensuring stable operation in complex power grids.
Current Transformer (CT) Input
Secondary rated value of phase CT: 5 A, meeting the current monitoring requirements of medium and large motors.
Analog Output
Output range: 4-20 mA, supports multi-channel analog signal output, can be connected to PLC, SCADA or other monitoring systems to achieve remote status monitoring.
2、 469-P5-HI-A20-E protection function
Core protection type
Overload protection: Real time monitoring of motor current to prevent thermal damage caused by overload.
Short circuit protection: Quickly respond to short circuit faults to avoid equipment damage.
Ground fault protection: Detecting ground faults to ensure the safety of personnel and equipment.
Phase loss/unbalance protection: Monitor three-phase unbalance to prevent motor damage due to phase loss operation.
Stall protection: detects abnormal motor speed to avoid overheating or burning caused by mechanical jamming.
Advanced protection features
Thermal capacity monitoring: Based on the motor thermal model, dynamically calculate the thermal capacity to avoid thermal accumulation caused by frequent start stop.
Unbalanced bias compensation: By adjusting the thermal effect of unbalanced current through the K coefficient, the protection accuracy is improved.
3、 469-P5-HI-A20-E Communication and Interface
communication protocol
Supports industrial communication protocols such as Modbus RTU/TCP/IP, Ethernet/IP, etc., achieving seamless integration with upper computers or distributed control systems.
Interface Configuration
RS-232 program port: baud rate 9600 (programmable up to 19200), used for local configuration and debugging.
Ethernet port (optional): Supports high-speed data transmission for remote monitoring and diagnosis.
4、 469-P5-HI-A20-E Display and Operation
Front panel design
LCD display screen: 40 character large screen, supporting Chinese/English display, real-time display of motor status, fault information, and diagnostic data.
LED indicator light: intuitively displays the status of motor operation, faults, alarms, etc.
Numerical keyboard and programming keys: supports local parameter configuration, logic programming, and fault reset.
Sealed withdrawable handle: prevents unauthorized disassembly and enhances safety.
5、 Environmental adaptability
protection grade
IP20 (Standard Edition): Suitable for ordinary industrial environments.
IP67 (optional harsh environment version): dustproof and waterproof, suitable for high humidity, corrosive gas or dust environments.
Working temperature range
-20 ° C to+60 ° C: meets the stable operation requirements in extreme environments.
Resistance to impact and vibration
Suitable for high vibration industrial scenarios through IEC 255-5 0.5 joule 5 kV impulse test.
6、 Certification and Standards
Certification: Complies with international safety standards such as ISO, UL, CSA, CE, etc., ensuring product compliance in the global market.
Electromagnetic compatibility (EMC): Through industrial grade EMC testing, it has strong anti-interference ability.
7、 Application scenarios
Industrial Automation
Suitable for the protection and control of medium and large motors such as fans, pumps, compressors, crushers, etc.
Power System
Used for motor equipment protection in power plants, substations, and distribution systems.
Heavy industry sector
Ensure stable operation of motors in high load and high pollution environments such as steel, petrochemical, and mining.
8、 Summary of Advantages
High reliability: Industrial grade design and components that adapt to harsh environments and reduce maintenance costs.
Flexibility: Supports multiple power inputs, communication protocols, and programming interfaces to adapt to different system architectures.
Intelligence: Built in thermal model and imbalance compensation algorithm to improve protection accuracy and response speed.
Usability: intuitive display interface and local programming functions, simplifying debugging and operation processes.

469-P5-HI-A20-E is an ideal choice for the protection of medium and large motors, providing comprehensive monitoring, control, and safety assurance for critical equipment.