描述
一、产品定位与核心优势
1.品牌与产品线归属
GE(General Electric,现属GE Vernova能源板块):
531X305NTBANG101是GE Multilin系列中的一款工业级保护继电器模块,专注于电力系统保护与控制。
核心优势:
高精度保护算法:支持差动保护、过流保护、距离保护,满足IEC 61850标准。
多协议兼容:集成Modbus、DNP3、IEC 61850(GOOSE/MMS),适配智能变电站。
宽环境适应性:工作温度-25℃~70℃,耐受高湿度、盐雾、振动(符合IEC 60255标准)。
模块化设计:支持热插拔、冗余配置,便于现场升级与维护。
2.典型应用场景
电力系统保护:
发电厂:发电机差动保护、变压器后备保护。
变电站:线路距离保护、母线差动保护。
工业配电:电动机保护、电容器组保护。
可再生能源并网:
光伏/风电场汇流箱、逆变器的过压/过流保护。
轨道交通供电:
地铁/高铁牵引变电所的馈线保护。
石油化工:
爆炸危险区域(Ex d/Ex e)的电机保护与联锁控制。
二、技术参数详解
1.基础规格
参数类别规格详情
型号531X305NTBANG101
系列GE Multilin UR系列(通用保护继电器)
安装方式面板安装(前接线)或机架安装(19英寸标准)
通道数4个保护通道(可独立配置)+8个数字输入/4个数字输出
保护功能差动保护、过流保护(速断/定时限)、方向保护、低电压/过电压保护、频率保护
通信接口以太网(10/100 Mbps)+RS-485(Modbus/DNP3)+光纤接口(可选)
2.电气参数
参数类别规格详情
额定电压AC/DC 24~250 V(宽范围供电)
输入信号电流互感器(CT):5 A/1 A(二次侧)
电压互感器(PT):100 V/110 V(二次侧)
测量精度电流/电压:±0.1%
功率:±0.2%
频率:±0.01 Hz
保护动作时间差动保护:<10 ms(典型值)
过流保护:<20 ms(速断模式)
输出触点容量继电器输出:10 A 250 VAC/30 VDC(阻性负载)
隔离电压输入/输出间:4 kV(50 Hz,1分钟)
通道间:2 kV(50 Hz,1分钟)
3.环境与可靠性
参数类别规格详情
工作温度-25℃~70℃(工业级)
存储温度-40℃~85℃
湿度5~95%RH(无凝露)
振动抗性5~500 Hz,2 g(IEC 60068-2-6)
冲击抗性30 g,11 ms(IEC 60068-2-27)
防护等级IP40(标准),可选IP54防护罩
MTBF>300,000小时(25℃恒定负载,Telcordia SR-332标准)
认证标准IEC 60255、UL 508、CE、ATEX(Ex nA IIC T4 Gc)、GOST-R
三、功能特性解析
1.高精度保护与控制
自适应保护算法:
根据系统阻抗、负荷变化自动调整保护定值,减少误动/拒动风险。
多级保护逻辑:
支持主保护+后备保护双重配置,例如差动保护(主)+过流保护(后备)。
故障录波:
记录故障前/后8个周期的波形,支持COMTRADE格式导出,便于事故分析。
2.智能通信与集成
IEC 61850协议:
通过GOOSE消息实现快速跳闸信号传输(<4 ms),适配智能变电站。
HMI集成:
提供GE Digital Energy HMI软件,支持实时监控、定值修改、事件日志查询。
PLC联动:
通过Modbus TCP/IP与GE PACSystems RX3i PLC联动,实现保护动作触发联锁逻辑。
3.安全与冗余设计
双电源输入:
支持AC/DC双供电,主备电源自动切换,确保不间断运行。
自诊断功能:
监测硬件状态(如CT断线、电源故障),通过LED指示灯/通信报文报警。
冗余通信:
可配置双以太网端口,实现通信链路冗余。
1.Product positioning and core advantages
1.Brand and product line ownership
GE(General Electric,now part of GE Vernova Energy):
531X305NTBANG101 is an industrial-grade protection relay module in the GE Multilin series,focusing on power system protection and control.
Core advantages:
High-precision protection algorithm:supports differential protection,overcurrent protection,distance protection,and meets the IEC 61850 standard.
Multi-protocol compatibility:integrated Modbus,DNP3,IEC 61850(GOOSE/MMS),suitable for smart substations.
Wide environmental adaptability:working temperature-25℃~70℃,resistant to high humidity,salt spray,vibration(in compliance with IEC 60255 standard).
Modular design:supports hot-swap and redundant configuration,which is convenient for on-site upgrades and maintenance.
2.Typical application scenarios
Power system protection:
Power plant:generator differential protection,transformer backup protection.
Substation:line distance protection,busbar differential protection.
Industrial power distribution:motor protection,capacitor bank protection.
Renewable energy grid connection:
Photovoltaic/wind farm combiner box,inverter overvoltage/overcurrent protection.
Rail transit power supply:
Subway/high-speed rail traction substation feeder protection.
Petrochemical:
Motor protection and interlocking control in explosion-hazardous areas(Ex d/Ex e).
2.Technical parameter details
1.Basic specifications
Parameter category Specification details
Model 531X305NTBANG101
Series GE Multilin UR series(universal protection relay)
Installation mode Panel installation(front wiring)or rack installation(19-inch standard)
Number of channels 4 protection channels(independently configurable)+8 digital inputs/4 digital outputs
Protection functions Differential protection,overcurrent protection(fast break/time limit),direction protection,low voltage/overvoltage protection,frequency protection
Communication interface Ethernet(10/100 Mbps)+RS-485(Modbus/DNP3)+fiber optic interface(optional)
2.Electrical parameters
Parameter category Specification details
Rated voltage AC/DC 24~250 V(wide range power supply)
Input signal Current transformer(CT):5 A/1 A(secondary side)
Voltage transformer(PT):100 V/110 V(secondary side)
Measurement accuracy Current/voltage:±0.1%
Power:±0.2%
Frequency:±0.01 Hz
Protection action time Differential protection:<10 ms(typical)
Overcurrent protection:<20 ms(fast-break mode)
Output contact capacity Relay output:10 A 250 VAC/30 VDC(resistive load)
Isolation voltage Input/output:4 kV(50 Hz,1 minute)
Channel:2 kV(50 Hz,1 minute)
3.Environment and reliability
Parameter category Specification details
Operating temperature-25℃~70℃(industrial grade)
Storage temperature-40℃~85℃
Humidity 5~95%RH(non-condensing)
Vibration resistance 5~500 Hz,2 g(IEC 60068-2-6)
Shock resistance 30 g,11 ms(IEC 60068-2-27)
Protection level IP40(standard),optional IP54 protective cover
MTBF>300,000 hours(25℃constant load,Telcordia SR-332 standard)
Certification standards IEC 60255,UL 508,CE,ATEX(Ex nA IIC T4 Gc),GOST-R
III.Functional characteristics analysis
1.High-precision protection and control
Adaptive protection algorithm:
Automatically adjust the protection setting according to system impedance and load changes to reduce the risk of false operation/refusal to operate.
Multi-level protection logic:
Supports dual configuration of main protection+backup protection,such as differential protection(main)+overcurrent protection(backup).
Fault recording:
Records waveforms of 8 cycles before/after the fault,supports COMTRADE format export,and is convenient for accident analysis.
2.Intelligent communication and integration
IEC 61850 protocol:
Fast trip signal transmission(<4 ms)is achieved through GOOSE messages,suitable for smart substations.
HMI integration:
GE Digital Energy HMI software is provided to support real-time monitoring,fixed value modification,and event log query.
PLC linkage:
Link with GE PACSystems RX3i PLC through Modbus TCP/IP to realize protection action triggering interlocking logic.
3.Safety and redundancy design
Dual power input:
Support AC/DC dual power supply,automatic switching of main and standby power supplies to ensure uninterrupted operation.
Self-diagnosis function:
Monitor hardware status(such as CT disconnection,power failure),and alarm through LED indicators/communication messages.
Redundant communication:
Configurable dual Ethernet ports to achieve communication link redundancy.
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