产品细节说明:REX521BBHGLB01C ABB 馈线和电动机保护继电器
REX521BBHGLB01C 是ABB公司生产的一款馈线和电动机保护继电器，属于REX 521系列。这款产品不仅具备性能卓越的馈线保护功能，还提供一整套增值信息服务软件包，包括技术数据、用户文档以及接线图等基本信息，确保继电器从安装、组态、调试及其使用周期中始终顺利运行并高效使用。
REX 521 馈线保护继电器的新增特征使其更广泛地适用于电力系统保护、测量、监视和控制需求。它典型应用于中性点不接地系统、谐振接地系统、中性点直接接地系统和电阻接地系统，能满足进、出线间隔的速断、过流和接地零序等保护功能。此外，REX 521强大的保护功能还使其可以应用于大、中型中压电机保护单元。
REX 521 是ABB公司从基本功能的保护继电器到集电力系统保护、测量、监控功能为一体的智能终端系列产品线中的重要成员。增强的REX 521除具有一系列新的保护功能外，还提供了诸如像电能质量监视等大量监视功能。为了满足中国市场用户的需要，特别增加了重合闸前、后加速等保护功能，并提供了全中文人机界面显示，因此调试和操作非常方便
REX521BBHGLB01C
产品详情参数:REX521BBHGLB01C ABB 馈线和电动机保护继电器
- 设计用途：REX521BBHGLB01C 馈线和电动机保护继电器设计用于在中压电力系统中进行保护、控制、测量和监控，适用于进线、出线以及变电站保护 。
- 输入端配置：该继电器配有用于常规电流和电压互感器的交流量输入端，同时也提供含电流和电压传感器输入的硬件版本 。
- 基于多处理器环境：REX521BBHGLB01C 基于多处理器环境，人机界面（HMI）包括一个LCD（液晶显示器），具有不同的视图，便于本地使用，并可通过指示信息通知用户 。
REX521BBHGLB01C ABB 应用领域:
REX 521 技术总结：迈向智能型变电站综合自动化。REX 521 除保护功能外，还提供了以下功能：用于监测用户网络的全面的测量功能、为了精确捕捉和分析故障，集成了高采样率的故障录波模块、就地 / 远方断路器控制、可配置多轮次自动重合闸、断路器状态监测、可测量电压或电流的总谐波畸变率（THD）以用于电能质量监视、全中文的界面标识和显示信息。
Product details: REX521BBHGLB01C ABB feeder and motor protection relay
REX521BBHGLB01C is a feeder and motor protection relay produced by ABB, belonging to the REX 521 series. This product not only has excellent feeder protection function, but also provides a complete set of value-added information service software package, including technical data, user documentation, wiring diagrams and other basic information, to ensure that the relay runs smoothly and efficiently from installation, configuration, debugging and its service life.
The new features of REX 521 feeder protection relay make it more widely applicable to the protection, measurement, monitoring, and control needs of power systems. It is typically applied in neutral ungrounded systems, resonant grounded systems, neutral directly grounded systems, and resistance grounded systems, and can meet protection functions such as quick break, overcurrent, and zero sequence grounding between incoming and outgoing lines. In addition, the powerful protection function of REX 521 also allows it to be applied to large and medium-sized medium voltage motor protection units.
REX 521 is an important member of ABB’s intelligent terminal series product line, which includes basic protection relays and integrates power system protection, measurement, and monitoring functions. The enhanced REX 521 not only has a series of new protection functions, but also provides a large number of monitoring functions such as power quality monitoring. In order to meet the needs of users in the Chinese market, special protection functions such as acceleration before and after reclosing have been added, and a fully Chinese human-machine interface display has been provided, making debugging and operation very convenient
Product details and parameters: REX521BBHGLB01C ABB feeder and motor protection relay
Design purpose: REX521BBHGLB01C feeder and motor protection relay is designed for protection, control, measurement, and monitoring in medium voltage power systems, suitable for incoming, outgoing, and substation protection.
Input configuration: This relay is equipped with AC input terminals for conventional current and voltage transformers, and also provides hardware versions with current and voltage sensor inputs.
Based on a multiprocessor environment: REX521BBHGLB01C is based on a multiprocessor environment, and the human-machine interface (HMI) includes an LCD (liquid crystal display) with different views for local use, and can notify users through indicator information.
REX521BBHGLB01C ABB application areas:
REX 521 Technology Summary: Towards Intelligent Substation Integrated Automation. In addition to protection functions, REX 521 also provides the following features: comprehensive measurement functions for monitoring user networks, high sampling rate fault recording modules integrated for accurate capture and analysis of faults, local/remote circuit breaker control, configurable multi turn automatic reclosing, circuit breaker status monitoring, measurable total harmonic distortion (THD) of voltage or current for power quality monitoring, fully Chinese interface identification and display information.
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