REX521BBHGLB01C  馈线和电动机保护继电器

型号：REX521BBHGLB01C

馈线和电动机保护继电器REX 521

REX 521和RED 500平台在功能模块说明方面的不同

在CD-ROM“功能模块技术说明”中，REX521和RED 500平台在功能模块说明方面有几处不同。首先，某些术语指代其它产品而非 REX 521。其次，有些特征仅在REX 521中出现:

·事件掩码1仅用于SPA通信。

·自动重合阐功能的直接控制已被禁止。

·在REX 521的标准配置中使用数目有限的输入和输出。

标准配置H50特征

·两段过电流保护

·两段方向零序电流（接地工保护·两段零序电流（接地)保护·两段过电压保护

·两段低电压保护·两段零序电压保护·涌流和电机启动监视·两段频率保护

·复合电压保护

·三相电流输入回路监视·三相电压输入回路监视·电流波形失真测量·电压波形失真测量·三相电流测量·中性线电流测量·三相电压测量。零序电压测量·系统频率测量

·三相功率和电能测量·断路器累积电气磨损计算.

·三相电压测量·零序电压测量·系统频率测量

·三相功率和电能测量·断路器累积电气磨损计算·故障录波模块

·跳闸回路监视

·延迟跳闸输出的断路器失灵保护（CBFP )功能·自动重合闸1...5次合闸

·带指示的断路器控制·闭锁功能

·操作对象指示

·逻辑控制位置选择器·用户可配置的I/0·电气联锁

·用户可配置的报警灯

REX521BBHGLB01C  馈线和电动机保护继电器

Model: REX521BBHGLB01C

Feeder and motor protection relay REX 521

The REX 521 and RED 500 platforms differ in the description of functional modules

In the CD-ROM "Function Module Technical Notes", the REX521 and RED 500 platforms differ in several aspects of function module descriptions. First, some terms refer to other products than REX 521. Second, there are some features that are only present in REX 521:

· Event mask 1 is only used for SPA communications.

· Direct control of automatic recasting functions is prohibited.

· A limited number of inputs and outputs are used in the standard configuration of the REX 521.

Standard configuration H50 features

· Two overcurrent protection

· Two directional zero sequence current (grounding protection) · Two zero-sequence current (grounding) protection · Two overvoltage protection

· Two stages of low voltage protection · Two stages of zero sequence voltage protection · Inrush current and motor start monitoring · Two stages of frequency protection

· Composite voltage protection

· Three-phase current input loop monitoring · Three-phase voltage input loop monitoring · Current waveform distortion measurement · Voltage waveform distortion measurement · Three-phase current measurement · Neutral line current measurement · Three-phase voltage measurement Zero sequence voltage measurement · System frequency measurement

· Measurement of three-phase power and electrical energy · Calculation of cumulative electrical wear of circuit breakers.

· Three-phase voltage measurement · Zero-sequence voltage measurement · System frequency measurement

· Measurement of three-phase power and electrical energy · Calculation of cumulative electrical wear of circuit breakers · Fault recording module

· Trip loop monitoring

· Circuit breaker Failure Protection (CBFP) function for delayed trip output · Automatic reclosing 1... 5 times closing

· Circuit breaker control with indication · latching function

· Operation object indication

· Logical control position selector · User configurable I/0· Electrical interlocking

· User configurable alarm light