描述
产品简要说明
ALSTOM RA332是一款中压电网继电保护装置，专为电力传输与配电系统设计，核心功能包括：
精准故障检测：支持相间短路、接地故障、过流过压等20+类保护逻辑
智能通信：集成IEC 61850标准协议，支持与SCADA系统无缝对接
宽环境适应性：IP65防护等级，耐受-30℃至60℃极端温度
产品详细说明
1.硬件架构与核心功能
检测模块：
采用双冗余AD采样芯片，采样精度达±0.5%，支持100kHz瞬态捕捉
内置电压互感器（PT）和电流互感器（CT）自检功能
保护算法：
自适应方向过流保护：动态调整保护阈值，避免误动作
距离保护：三段式阶梯式保护，响应时间≤10ms
抗干扰设计：
电磁屏蔽层+隔离变压器，通过IEC 61000-4-4/5/6抗干扰测试
2.通信与数据管理
协议支持：
工业通信：SCL配置语言、GOOSE报文、MMS协议
本地接口：2×RS485+1×光纤以太网（1000Mbps）
数据存储：
内置32GB固态存储，支持10万条事件记录与波形录波
支持FTP/SFTP远程数据导出
3.行业应用适配
智能电网：
在分布式能源接入场景中，实现微电网与主网的无缝切换保护
在光伏电站中完成直流侧故障快速隔离（≤50ms）
轨道交通：
适配城市地铁牵引供电系统，支持接触网短路故障定位
在高铁变电站中实现双电源自动切换保护
技术规格:ALSTOM RA332
参数项规格描述
额定电压3.6kV至35kV（可扩展至110kV）
保护类型相间距离保护、零序过流保护、差动保护等
采样频率4kHz（模拟量）/1MHz（开关量）
通信协议IEC 61850-7-4（SCL）、GOOSE（IEEE C37.235-2011）
环境耐受湿度范围5%～95%（无凝露），抗震等级8级
核心价值与性能亮点
1.高可靠性保护
案例应用：在某500kV变电站中，连续运行3年零误动作，故障隔离成功率100%
2.智能诊断功能
技术突破：通过AI算法预测设备老化状态，提前预警故障概率（准确率≥92%）
Product brief description
ALSTOM RA332 is a medium-voltage power grid relay protection device designed for power transmission and distribution systems.The core functions include:
Accurate fault detection:Supports 20+types of protection logic such as phase-to-phase short circuit,grounding fault,overcurrent and overvoltage
Intelligent communication:Integrate the IEC 61850 standard protocol,supports seamless connection with SCADA systems
Wide environmental adaptability:IP65 protection level,withstand extreme temperatures of-30℃to 60℃
Product details
1.Hardware architecture and core functions
Detection module:
Adopt dual redundant AD sampling chip,sampling accuracy up to±0.5%,and supports 100kHz transient capture
Built-in voltage transformer(PT)and current transformer(CT)self-test functions
Protection algorithm:
Adaptive direction overcurrent protection:dynamically adjust the protection threshold to avoid erroneous action
Distance protection:three-stage step protection,response time≤10ms
Anti-interference design:
Electromagnetic shielding layer+isolation transformer,passed IEC 61000-4-4/5/6 anti-interference test
2.Communication and data management
Protocol support:
Industrial communication:SCL configuration language,GOOSE packets,MMS protocol
Local interface:2×RS485+1×Fiber Optical Ethernet(1000Mbps)
Data storage:
Built-in 32GB solid-state storage,supporting 100,000 event records and waveform recordings
Supports FTP/SFTP remote data export
3.Industry application adaptation
Smart Grid:
In distributed energy access scenarios,seamless switching protection between the microgrid and the main network is realized
Complete rapid isolation of DC side faults in photovoltaic power stations(≤50ms)
Rail Transit:
Adapt to urban subway traction power supply system,supporting short circuit fault location of contact network
Implement automatic switching protection of dual power supply in high-speed rail substations
Technical Specifications:ALSTOM RA332
Parameters Specification Description
Rated voltage 3.6kV to 35kV(scalable to 110kV)
Protection type:Phase distance protection,zero-sequence overcurrent protection,differential protection,etc.
Sampling frequency:4kHz(analog quantity)/1MHz(switch quantity)
Communication protocols IEC 61850-7-4(SCL),GOOSE(IEEE C37.235-2011)
Environmental tolerance Humidity range 5%to 95%(no condensation),earthquake resistance level 8
Core Valuesand Performance Highlights
1.High reliability protection
Case application:In a 500kV substation,it has been continuously operated for 3 years and has a malfunctioning success rate of 100%.
2.Intelligent diagnostic function
Technical breakthrough:predict the aging status of the device through AI algorithms and early warning of the probability of failure(accuracy rate≥92%)
