描述
产品简要说明
Alstom MVTT14R1NA0751E是一款中压真空断路器，专为工业配电系统与新能源并网场景设计，核心功能包括：
高可靠性开断：支持12kV电压等级，额定电流1250A，机械寿命达5000次
智能控制：集成本地触控屏与远程通信接口，支持IEC 61850协议
环境适应性：IP67防护等级，耐受-30℃至70℃极端温度
产品详细说明
1.硬件架构与核心功能
灭弧系统：
采用双触头真空灭弧室，触头磨损量≤0.5mm/次
动态开断能力：63kA短路电流分断，燃弧时间≤2ms
操作机构：
双储能设计：弹簧储能+液压缓冲，分合闸时间≤150ms
机械寿命测试通过IEC 62271-100标准（5000次无故障）
故障诊断：
内置电流互感器（CT）与电压互感器（PT）自检模块
支持分合闸线圈阻抗实时监测（精度±1%）
2.通信与智能控制
协议支持：
工业通信：Modbus/TCP、IEC 61850-9-2（SV采样值）
无线扩展：可选配LoRa模块实现远距离监控（传输距离≥5km）
本地控制：
7英寸触控屏，支持中英文界面切换
一键式故障复位与参数配置功能
3.行业应用适配
工业配电：
在冶金厂高炉供电系统中，实现电弧炉短路快速隔离（响应时间≤100ms）
在化工园区应急电源系统中，支持双电源自动切换（切换时间≤50ms）
新能源场景：
适配光伏逆变器直流侧保护，抑制PID效应（抑制效率≥85%）
在风电变流器中实现过载保护（保护阈值误差≤±2%）
技术规格:Alstom MVTT14R1NA0751E
参数项规格描述
额定电压12kV（AC）
额定电流1250A（持续运行）/2500A（短时耐受）
机械寿命5000次分合闸（符合IEC 62271-100标准）
通信接口2×光纤以太网（1000Mbps）+1×RS485
环境耐受湿度范围5%～99%（凝露防护），抗震等级8级
Product brief description
Alstom MVTT14R1NA0751E is a medium voltage vacuum circuit breaker designed for industrial distribution systems and new energy grid-connected scenarios.The core functions include:
High reliability interruption:Supports 12kV voltage level,rated current 1250A,and mechanical life up to 5000 times
Intelligent control:Integrates local touch screen and remote communication interface,supports IEC 61850 protocol
Environmental adaptability:IP67 protection level,withstand extreme temperatures of-30℃to 70℃
Product details
1.Hardware architecture and core functions
Arc extinguishing system:
Double contact vacuum arc extinguishing chamber is used,contact wear is≤0.5mm/time
Dynamic breaking capability:63kA short circuit current breaking,arc time≤2ms
Operating mechanism:
Dual energy storage design:spring energy storage+hydraulic buffering,closing time≤150ms
Mechanical life test passes IEC 62271-100 standard(5000 times without fault)
Troubleshooting:
Built-in current transformer(CT)and voltage transformer(PT)self-test module
Support real-time monitoring of the impedance of the opening and closing coil(accuracy±1%)
2.Communication and intelligent control
Protocol support:
Industrial communication:Modbus/TCP,IEC 61850-9-2(SV sampling value)
Wireless expansion:optional LoRa module to achieve long-distance monitoring(transmission distance≥5km)
Local control:
7-inch touch screen,supports switching between Chinese and English interfaces
One-click fault reset and parameter configuration functions
3.Industry application adaptation
Industrial power distribution:
In the blast furnace power supply system of metallurgical plant,rapid isolation of short circuit of arc furnace(response time≤100ms)
In the emergency power supply system of chemical parks,dual power supply automatic switching is supported(switching time≤50ms)
New energy scenarios:
Adapt to DC-side protection of photovoltaic inverter to suppress PID effect(suppression efficiency≥85%)
Implement overload protection in wind power converters(protection threshold error≤±2%)
Technical Specifications:Alstom MVTT14R1NA0751E
Parameters Specification Description
Rated voltage 12kV(AC)
Rated current 1250A(continuous operation)/2500A(short-time withstand)
Mechanical life:5000 times of closing and closing(comply with IEC 62271-100 standard)
Communication interface 2×Fiber Optical Ethernet(1000Mbps)+1×RS485
