Deif MDR-1

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)

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)