描述
产品简要说明
MDR-1是DEIF专为复杂电力系统设计的多功能差动保护继电器,核心特性包括:
内置补偿系统:消除电流互感器偏差影响
可编程跳闸曲线:支持16种自定义逻辑
宽电压适配:覆盖110V至690V系统
产品详细说明
1.核心功能解析
差动保护机制
算法原理:
采用比率制动特性曲线(IEC 60255-80标准),动态抑制区外故障误动
灵敏度调节:
最小动作电流可设至0.1In(In=1A/5A可选)
智能诊断模块
谐波分析:
实时监测5次、7次谐波含量(抑制谐振过电压)
通道同步:
光纤/电缆双通道冗余设计(切换时间<5ms)
2.系统集成特性
通信协议
工业总线:
Modbus TCP/IP、CANopen、IEC 61850(选配)
远程配置:
支持DEIF Configurator工具在线参数修改
扩展接口
输入输出:
6路高速数字输入(兼容脉冲信号)
2路光耦隔离输出(触点寿命10万次)
3.行业适配方案
风电场:
与变流器协同实现发电机绕组保护(案例:5MW直驱风机)
船舶电网:
通过DNV GL认证,满足海上平台抗冲击(5g)、防腐蚀(IEC 60945)要求
Product brief description
MDR-1 is a multifunctional differential protection relay designed by DEIF for complex power systems.The core features include:
Built-in compensation system:eliminate the influence of current transformer deviation
Programmable tripping curve:Supports 16 custom logic
Wide voltage adaptation:Covering 110V to 690V systems
Product details
1.Core function analysis
Differential protection mechanism
Algorithm principle:
Using ratio braking characteristic curve(IEC 60255-80 standard)to dynamically suppress errors outside the zone
Sensitivity adjustment:
Minimum operating current can be set to 0.1In(In=1A/5A optional)
Intelligent diagnostic module
Harmonic analysis:
Real-time monitoring of the harmonic content of 5 times and 7 times(suppressing resonant overvoltage)
Channel synchronization:
Fiber/cable dual-channel redundant design(switching time<5ms)
2.System integration features
Communication Protocol
Industrial bus:
Modbus TCP/IP,CANopen,IEC 61850(optional)
Remote configuration:
Support DEIF Configurator tool online parameter modification
Extended interface
Input and output:
6 high-speed digital inputs(compatible with pulse signals)
2-channel optocoupler isolation output(contact life 100,000 times)
3.Industry adaptation plan
Wind farm:
Cooperate with the converter to realize generator winding protection(case:5MW direct drive fan)
Ship Grid:
Passed DNV GL certification,meets the requirements of offshore platforms’impact resistance(5g)and corrosion resistance(IEC 60945)