GE Multilin 469-P5-HI-A20-T-H

Description

GE 469-P5-HI-A20-T-H 电机管理继电器技术参数中文介绍

GE 469-P5-HI-A20-T-H 为通用电气（General Electric）Multilin 469 系列电机管理继电器中一款已停产（obsolete）的产品，专为中大型电机保护与控制设计，具备工业级防护与通信能力。以下为该产品的技术参数及功能特性总结：

一、469-P5-HI-A20-T-H  电气参数

• 控制电源
  • 直流输入：90–300 VDC
  • 交流输入：70–265 VAC（48–62 Hz），兼容宽电压范围工业电源。
• 电流输入
  • 相电流互感器（CT）次级：5 A，支持高精度电流测量。
• 模拟输出
  • 4–20 mA 输出：4 路，可用于连接 PLC、DCS 或 SCADA 系统，实现远程监控。
• 数字输入
  • 9 路光隔离输入：支持远程报警、跳闸等逻辑控制。

二、469-P5-HI-A20-T-H  通信能力

• 通信协议
  • Modbus RTU/半双工：支持工业现场总线通信，实现设备互联与数据交互。
• 网络接口
  • 以太网（Ethernet）：支持 10BaseT 以太网端口，兼容 TCP/IP 协议，可通过 Modbus RTU over TCP/IP 扩展通信能力。
• 串行接口
  • RS-232/RS-485：支持编程、调试及故障诊断。

三、469-P5-HI-A20-T-H  环境适应性

• 防护等级
  • IP20（标准型号）：适用于室内环境。
  • 耐化学腐蚀涂层（Conformal Coating）：增强型型号具备防护涂层，可抵御化学腐蚀、潮湿及工业粉尘，适用于化工、石油等恶劣环境。
• 工作温度
  • -40°C 至 +70°C：宽温范围设计，适应极端气候条件。
• 存储温度
  • -40°C 至 +80°C。
• 湿度
  • 5% 至 95%（非冷凝）。

四、机械特性

• 尺寸
  • 90 mm × 140 mm × 60 mm：紧凑设计，节省安装空间。
• 重量
  • 0.8 kg：轻量化设计，便于安装与维护。
• 安装方式
  • 抽出式结构：支持快速更换与现场升级，减少停机时间。

五、保护功能

• 电机保护
  • 过载保护：实时监测电流，防止电机过热损坏。
  • 短路保护：快速切断故障电流，保护电机及电路。
  • 接地故障保护：检测接地故障，避免设备损坏。
  • 缺相保护：防止电机因缺相运行而受损。
  • 不平衡保护：监测三相电流不平衡，避免电机振动与过热。
• 温度监测
  • RTD 输入：支持 100 Ω 镍、120 Ω 镍、10 Ω 铜、100 Ω 铂金等电阻温度检测器（RTD），精准监测电机温度。
• 热容量模型
  • 实时计算电机热容量：结合 RTD 温度补偿与冷却时间常数调整，优化保护逻辑。

六、显示与操作

• 前面板设计
  • 大型 LCD 显示屏：40 字符显示，支持中文或英文界面，可查看跳闸记录、报警信息及电机状态。
  • LED 状态指示灯：直观显示电机及输出状态。
  • 数字键盘与编程键：支持参数设置、逻辑编程及功能配置。

七、认证与标准

• 安全认证
  • ISO、UL、CSA、CE：符合国际安全与电磁兼容标准。

八、应用领域

• 工业自动化
  • 泵、风扇、压缩机：保护关键设备，提升系统可靠性。
• 发电与变电站
  • 中压电机管理：支持发电机、变压器等设备的保护与控制。
• 化工与石油
  • 恶劣环境电机保护：耐化学腐蚀涂层设计，适应腐蚀性气体与潮湿环境。

九、停产与替代

• 停产状态
  • 469-P5-HI-A20-T-H 已停产：建议用户选择替代型号（如 SR469-P5-HI-A20-EH），后者具备相同功能并升级防护涂层。

十、总结

GE 469-P5-HI-A20-T-H 是一款专为中大型电机设计的高性能保护继电器，具备宽电压输入、工业通信、耐环境涂层及多重保护功能，适用于化工、石油等恶劣工业场景。尽管已停产，但其技术参数仍为电机保护领域的重要参考。

Introduction to Technical Parameters of GE 469-P5-HI-A20-T-H Motor Management Relay in Chinese

GE 469-P5-HI-A20-T-H is an obsolete product in the General Electric Multilin 469 series motor management relay, designed specifically for the protection and control of medium and large motors, with industrial grade protection and communication capabilities. The following is a summary of the technical parameters and functional characteristics of the product:

1、 469-P5-HI-A20-T-H Electrical Parameters
Control power supply
DC input: 90-300 VDC
Communication input: 70-265 VAC (48-62 Hz), compatible with a wide voltage range industrial power supply.
current input
Phase current transformer (CT) secondary: 5 A, supports high-precision current measurement.
Analog Output
4-20 mA output: 4 channels, can be used to connect PLC, DCS or SCADA systems for remote monitoring.
digital input
9-way optical isolation input: supports remote alarm, trip and other logic control.
2、 469-P5-HI-A20-T-H communication capability
communication protocol
Modbus RTU/Half Duplex: Supports industrial fieldbus communication, enabling device interconnection and data exchange.
network interface
Ethernet: Supports 10BaseT Ethernet ports, compatible with TCP/IP protocol, and can expand communication capabilities through Modbus RTU over TCP/IP.
serial interface
RS-232/RS-485: Supports programming, debugging, and fault diagnosis.
3、 469-P5-HI-A20-T-H environmental adaptability
protection grade
IP20 (standard model): Suitable for indoor environments.
Conformal Coating: The enhanced model features a protective coating that can resist chemical corrosion, moisture, and industrial dust, making it suitable for harsh environments such as chemical and petroleum industries.
operation temperature
-40 ° C to+70 ° C: Designed for a wide temperature range, suitable for extreme weather conditions.
storage temperature
-40 ° C to+80 ° C.
humidity
5% to 95% (non condensing).
4、 Mechanical characteristics
size
90 mm x 140 mm x 60 mm: Compact design, saving installation space.
weight
0.8 kg: Lightweight design for easy installation and maintenance.
Installation method
Pull out structure: supports quick replacement and on-site upgrades, reducing downtime.
5、 Protection function
motor protection
Overload protection: Real time monitoring of current to prevent motor overheating and damage.
Short circuit protection: Quickly cut off the fault current, protect the motor and circuit.
Ground fault protection: detect ground faults to prevent equipment damage.
Phase loss protection: prevents the motor from being damaged due to phase loss operation.
Unbalance protection: Monitor three-phase current imbalance to avoid motor vibration and overheating.
temperature monitoring
RTD input: Supports resistance temperature detectors (RTDs) such as 100 Ω nickel, 120 Ω nickel, 10 Ω copper, and 100 Ω platinum to accurately monitor motor temperature.
Thermal Capacity Model
Real time calculation of motor thermal capacity: Combining RTD temperature compensation and cooling time constant adjustment to optimize protection logic.
6、 Display and operation
Front panel design
Large LCD display screen: 40 character display, supports Chinese or English interface, can view trip records, alarm information, and motor status.
LED status indicator light: visually displays the motor and output status.
Numerical keyboard and programming keys: support parameter setting, logic programming, and function configuration.
7、 Certification and Standards
safety certification
ISO, UL, CSA, CE: Complies with international safety and electromagnetic compatibility standards.
8、 Application Fields
Industrial Automation
Pumps, fans, and compressors: protect critical equipment and enhance system reliability.
Power generation and substation
Medium voltage motor management: supports protection and control of equipment such as generators and transformers.
Chemical and Petroleum
Motor protection in harsh environments: designed with a chemical resistant coating, suitable for corrosive gases and humid environments.
9、 Discontinuation and Replacement
Shutdown status
469-P5-HI-A20-T-H has been discontinued: It is recommended that users choose an alternative model (such as SR469-P5-HI-A20-EH), which has the same functionality and upgraded protective coating.
10、 Summary

GE 469-P5-HI-A20-T-H is a high-performance protective relay designed specifically for medium to large motors. It features wide voltage input, industrial communication, environmentally resistant coatings, and multiple protection functions, making it suitable for harsh industrial scenarios such as chemical and petroleum industries. Although it has been discontinued, its technical parameters are still an important reference in the field of motor protection.